Answer:
Option D.
Step-by-step explanation:
First, the you need ti understand that the triangle is an isosceles right angled triangle. In other words, the base and height are equal in length. The third side is the slide. This is the longest side. Next, we know that the formula for calculating the area of a right angled triangle is given by:A = 1/2 (base × perpendicular height)
The perpendicular height is equal to the base. Let's say the base is x. It means that the height is also x, since height = base. Therefore, the formula will be:A = 1/2 (x.x)
=1/2 (x²)
32 = 1/2 (x²)
Multiplying both sides by 2 gives:
32×2 = x²
64 = x²
8 = x
To find the third side, we use the Pythagoras theorem:
C² = A² + B²
= 8² + 8²
= 128
C = √128
= 8√2
However, the answer will not be exact, so we multiply the length of the base and height by 2. This gives x = 16 (Length of base = length of height)
Repeating the steps above gives C = √ (16)² + (16)²
= √256
This corresponds to option D.
The following formula is used to calculate the monthly payment on a personal loan. P = P V times StartFraction i over 1 minus (1 + i) superscript negative n EndFraction In this formula, n represents the _____ . a. number of periods over which interest is calculated on the loan b. number of applicants for the loan c. number of years it will take to pay the loan back d. number of dollars the loan is for
Answer:
a. number of periods over which interest is calculated on the loanStep-by-step explanation:
The equation is:
[tex]P = PV\times \frac{i}{1-(1 + i)^{-n}}[/tex]
Where,
PV is the present value or the amount of the loan.i is the interest rate per period and is calculated dividing the yearly percent rate by 100 and by the number of periods in a year.n is the total number of periods and is calculated as the product of the number of periods in a year times the number of years.For example, to calculate the montly payment of a $30,000 loan to be paid in 10 years, at 8% compounded monthly, you use>
PV = 30,000i = (8 /100) / (12) = 0.08/12 ≈ 0.006667n = 10 years × 12 months/year = 120 months = 120 periods.Hence, n represents number of periods over which interest is calculated on the loan.
Answer:
to sum it up its A
Step-by-step explanation:
complete the table for the given rule: y=1/4+1
Answer:
there is no table :)
Step-by-Step Explanation:
y = 1/4x +1
X Y
4 2
8 3
12 4
Any suggestions or answers
Answer:
a. Triangular prism
b. (Perimeter of base×height) +2(base area)
c. Total surface area
[tex] = 11(3 + 4 + 5) + 2( \frac{1}{2} )(3)(4) \\ = 11(12) + 3(4) \\ = 132 + 12 \\ = 144 \:{cm}^{2} [/tex]
The reason why we multiply the perimeter of the base by the height is because we are trying to find the area of each of the rectangular sides of the prism. (length×breadth)
Celinda and Elsa deliver a 24-minute presentation. They each present for the same amount of time. For how mar
does each student present?
6 minutes
8 minutes
12 minutes
14 minutes
Answer: 12 minutes
Step-by-step explanation: Since there are 2 people and 24 minutes total, you have to divide the total time by the amount of people. The equation will be 24=2x, so divide 24 by 2 and you get 12
What’s the absolute value of 13
Answer:
The absolute value of 13 is (-13)
Step-by-step explanation:
It just is lol
Answer: 13
Explanation: The absolute value of an integer it its distance from zero on a number line. Since 13 is 13 units from zero, the absolute value of 13 is 13.
To represent the absolute value of a number, we use a vertical bar on either side of the number so we say that |13| = 13.
I have drawn a number line and also showed you in the image attached.
Loretta is a single mom with two kids. In 2009 her gross income was $61,840. She filed
her taxes as Head of the Household and claimed herself and her 2 children. Using the tables
above find Loretta's taxable income.
Answer:
$7300
Step-by-step explanation:
Loretta's taxable income in 2009 is $42,540. Calculation involves subtracting allowable deductions from gross income.
Explanation:Loretta's taxable income can be calculated by subtracting her allowable deductions from her gross income. As Head of the Household, Loretta is eligible for a higher standard deduction compared to single individuals. For tax year 2009, the standard deduction for Head of the Household was $8,350. Loretta can also claim deductions for herself and her two children. The personal exemption for each individual was $3,650 in 2009. Therefore, Loretta's total deductions would be $8,350 (standard deduction) + $3,650 (personal exemption for herself) + $3,650 (personal exemption for child 1) + $3,650 (personal exemption for child 2) = $19,300.
To find Loretta's taxable income, we subtract her total deductions from her gross income: $61,840 - $19,300 = $42,540. Therefore, Loretta's taxable income is $42,540 in 2009.
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if you add Natalie's age and Fred's age, the result is 45. if you add Fred's age to 3 times Natalie's age, the result is 73. Find how old Fred and Natalie are.
Answer:
Fred is 31 years old and Natalie is 14 years old.
Step-by-step explanation:
Given:
If you add Natalie's age and Fred's age, the result is 45.
If you add Fred's age to 3 times Natalie's age, the result is 73.
Now, to find the age of Fred and Natalie.
Let the age of Fred be [tex]x.[/tex]
And the age of Natalie be [tex]y.[/tex]
As, given If you add Natalie's age and Fred's age, the result is 45.
[tex]x+y=45[/tex] ......(1)
Now, if you add Fred's age to 3 times Natalie's age, the result is 73.
[tex]x+3y=73[/tex] ......(2)
So, to solve the equations by using elimination method.
Now, subtracting both the equations (1) and (2):
[tex]x+y-(x+3y)=45-73[/tex]
[tex]x+y-x-3y=-28[/tex]
[tex]-2y=-28[/tex]
Dividing both sides by -2 we get:
[tex]y=14.[/tex]
Natalie's age = 14 years.
Now, to get the age of Fred by substituting the value of [tex]y[/tex] in equation (1):
[tex]x+y=45\\\\x+14=45[/tex]
Subtracting both sides by 14 we get:
[tex]x=31.[/tex]
Fred age = 31 years.
Therefore, Fred is 31 years old and Natalie is 14 years old.
1. $239 television; 10% discount 2. $72 game; 20% discount
3. $18.95 football; 15% discount 4. $10.99 CD; 25% discount
5. $149 MP3 player; 40% discount 6. $213 ski jacket; 30% discount
7. $595 refrigerator; 20% discount 8. $64 video game; 25% discount
9. $119 croquet set; 50% discount 10. $14.99 clock; 10% discount
11. A radio is on sale for $50. If this price represents a 10% discount from the original price, what is the original price to the nearest nickel? Hint: need to use a proportion to find the whole.
12. A box of laundry detergent is on sale for $6.50. If this price represents a 40% discount from the original price, what is the original price to the nearest cent?
13. Determine the price of a $35 basketball that is on sale for 50% off the regular price.
14. Dominic bought a new alarm clock that was on sale for $18.75. If this price represents a 30% discount from the original price, what is the original price to the nearest cent?
15. Michael bought a new fishing rod. The regular price of the fishing rod was $125.99. He bought it on sale with a 15% discount. Sales tax of 3% is applied to the discounted total. What was the sale price with tax of Michael’s fishing rod to the nearest cent?
16. Jaylynn was buying new mascara. She bought it on sale for $5.56. If the price represents a 20% discount from the original price, what is the original price to the nearest cent?
Please help! It is due TOMORROW!!! :[I] HELP!!
These are 16 questions and 16 answers
Answer:
See below and the attachment.Explanation:
From 1 to 10, find the sale price to the nearest cent:
1. $239 television; 10% discount
[tex]Sale\text{ }price=Orignal\text{ }price-discount\\ \\ Sale\text{ }price=\$239-10\%\times \$239=\\\\ Sale\text{ }price=\$239-0.10\times \$239=\\\\ Sale\text{ }price=\$239-\$23.9=\$215.10[/tex]
2. $72 game; 20% discount
You can also multiply by the factor (1 - % discount);
For instance for 20% discount, the factor is 1 - 20% = 1 -0.20 = 0.80. Which means that you can multiply the original price by the factor 0.80 to get the sale price:
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$72\times(1-0.20)=\\\\ Sale\text{ }price=\$72\times0.80=\\\\ Sale\text{ }price=\$57.60[/tex]
3. $18.95 football; 15% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$18.95\times(1-0.15)=\\\\ Sale\text{ }price=\$18.95\times0.85=\\\\ Sale\text{ }price=\$16.11[/tex]
4. $10.99 CD; 25% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$10.99\times(1-0.25)=\\\\ Sale\text{ }price=\$10.99\times0.75=\\\\ Sale\text{ }price=\$8.24[/tex]
5. $149 MP3 player; 40% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$149\times(1-0.40)=\\\\ Sale\text{ }price=\$149\times0.60=\\\\ Sale\text{ }price=\$89.40[/tex]
6. $213 ski jacket; 30% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$213\times(1-0.30)=\\\\ Sale\text{ }price=\$213\times0.70=\\\\ Sale\text{ }price=\$149.10[/tex]
7. $595 refrigerator; 20% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$595\times(1-0.20)=\\\\ Sale\text{ }price=\$595\times0.80=\\\\ Sale\text{ }price=\$476.00[/tex]
8. $64 video game; 25% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$64\times(1-0.25)=\\\\ Sale\text{ }price=\$64\times0.75=\\\\ Sale\text{ }price=\$48.00[/tex]
9. $119 croquet set; 50% discount
You should not have problems with this: 50% discount means that you will pay half the price.
Hence, the sale price is:
[tex]Sale\text{ }price=Orignal\text{ }price/2 \\\\ Sale\text{ }price=\$59.50[/tex]
10. $14.99 clock; 10% discount
[tex]Sale\text{ }price=Orignal\text{ }price\times factor\\ \\ Sale\text{ }price=\$14.99\times(1-0.10)=\\\\ Sale\text{ }price=\$14.99\times0.90=\\\\ Sale\text{ }price=\$13.49[/tex]
11. A radio is on sale for $50. If this price represents a 10% discount from the original price, what is the original price to the nearest nickel? Hint: need to use a proportion to find the whole.
First note that if the discount is 10%, the sale price is 100% - 10% = 90% of the original price.
Let's set the proportion that represents the proportionality between the two ratios, starting with the fact that $ is the 90% and original price is the 100% (the whole part):
First ratio: $50/90Second ratio: x /100Proportion: first ratio = second ratio[tex]\$50/90=x/100[/tex]
Solve for x:[tex]x=100\times\$50/90=\$55.55[/tex]
Hence, the original price is $55.55
12. A box of laundry detergent is on sale for $6.50. If this price represents a 40% discount from the original price, what is the original price to the nearest cent?
Use the same hint used in the question above: set a proportion.
Remember a 40% discount means that the sale price is 60% of the original price:
[tex]\$6.50/60=x/100\\ \\ x=100\times\$6.50/60=\$10.83[/tex]
13. Determine the price of a $35 basketball that is on sale for 50% off the regular price.
Again, 50% discount means that the sale price will be half of the original price, or the original price will be double of the sale price.
Here, the original price is $35, hence the sale price is $35/2 = $17.50
14. Dominic bought a new alarm clock that was on sale for $18.75. If this price represents a 30% discount from the original price, what is the original price to the nearest cent?
Since the price is after a 30% discount, the sale price is a 70% of the original price, and you set the proportion:
[tex]\$18.75/70=x/100[/tex]
Solve for x:
[tex]x=100\times\$18.75/70=\$26.79[/tex]
15. Michael bought a new fishing rod. The regular price of the fishing rod was $125.99. He bought it on sale with a 15% discount. Sales tax of 3% is applied to the discounted total. What was the sale price with tax of Michael’s fishing rod to the nearest cent?
First find the the sale price after the 15% discount:[tex]\$125.99\times(1-0.15)=\$125.99\times0.85=\$107.09[/tex]
Now add the 3% tax:[tex]\$107.09\times1.03=\$110.30[/tex]
Hence, the sale price with tax is $110.30
The last answer (# 16) is in the attached file, since this already exceeds the number of characters allowed.
Mrs.Gunn makes one costume in 3hours and 20 minutes. How long will it take her to make 6 costumes for a school play?
Answer:
20 hours
Step-by-step explanation:
We can change the 3 hours and 20 minutes to "minutes" instead of hours:
1 hour is 60 minutes. So 3 hours is 60 * 3 = 180 minutes.
Add the 20 : 180 + 20 = 200 minutes for one costume.
Multiply by 6 for 6 costumes: 200 * 6 = 1200.
So 1200 minutes or 1200/60 = 20 hours to make 6 costumes
A problem states: "There are 5 more girls than boys at the party. There are 27 children at th
party in all. How many boys are there at the party?"
Let b represent the number of boys.
Which expression represents the number of girls?
b+ 5
5-b
b.5
b-5
Answer:
Option A, b + 5
Step-by-step explanation:
Step 1: Determine the equation to find the amount of boys
b + (b + 5) = 27
b: represents boys
b + 5: represents girls where they equal 5 more than boys
Answer: Option A, b + 5
Solve for x if DEFG is a parallelogram
the product of 3 and m
Ms. Killikelly added 33 and 48 by first
taking 2 from 33 and adding the 2 to 48
making 50. She likes making friendly
numbers when adding! What does she now
need to add to 50 to find the sum?
Answer:
31+2+48=31+50
30+50+1=81
Step-by-step explanation:
Ms. Killikelly is trying to add two 2-digits numbers by making the groups of tens
So she first tried to make 48 as 50 (i.e. group of five tens) by adding digit 2 of the number 33 to the number 48.
Now she needs to add 31 and 50. She needs to add three groups of tens (i.e. 30) with five groups of tens (i.e. 50) and then add 1(i.e. the remaining 1 of 31) as following
:
[tex]10+10+10+10+10+10+10+10+1=30+50+1=81[tex]
(because 30=10+10+10 and 50=10+10+10+10+10)
OR simply as follow
30+50+1=81
How do you simplify this expression using
properties of logarithms?
1/4 log4 16
Step-by-step explanation:
[tex] \frac{1}{4} \: log_4 16 \\ \\ = \frac{1}{4} \: log_4 {4}^{2} \\ \\ = \frac{1}{4} \times 2\: log_4 {4} \\ \\ = \frac{1}{4} \times 2\: \times 1 \\ \\ = \frac{1}{2} \\ \\ \huge \blue{ \boxed{\therefore \: \frac{1}{4} \: log_4 16= \frac{1}{2} }}\\ [/tex]
What is negative 3/11 as a decimal
Answer: - 0.2727
Step-by-step explanation:
2019 Chapter Sprint Round, #20
Jones is chasing a car 800 meters ahead of him. He is on a horse moving at 50 km/h. If Jones catches up to the car in 4 minutes, how fast was the car moving?
Answer:
[tex]Speed\ of\ car=38\ km/h[/tex]
Step-by-step explanation:
Distance Covered by Horse:
[tex]Speed\ of\ horse=50\ km\h=50\times \frac{1000}{60}\ meter/ minute\\\\Speed\ of\ horse=\frac{2500}{3}\ meter/minute\\\\Distance\ covered\ in\ 4\ minutes=speed\times time=\frac{2500}{3}\times 4\\\\Distance\ covered\ in\ 4\ minutes=\frac{10000}{3}\ meters\\\\[/tex]
Distance covered by Car:
[tex]Let\ speed\ of\ car=x\ meter/minute\\\\time=4\ minutes\\\\Distance\ covered=speed\times time=4\times x=4x[/tex]
[tex]Distance\ covered\ by\ horse=Distance\ covered\ by\ car+800\\\\\frac{10000}{3}=4x+800\\\\4x=\frac{10000}{3}-800\\\\4x=\frac{7600}{3}\\\\x=\frac{7600}{3\times 4}\ meter/minute\\\\x=\frac{7600}{3\times 4}\times \frac{60}{1000}\ km/h\\\\x=38\ km/h[/tex]
Final answer:
Jones' horse travels at 833.33 meters per minute, and in 4 minutes it covers 3333.32 meters. The car travels 2533.32 meters in the same time, giving it a speed of 633.33 meters per minute or 38 km/h.
Explanation:
To find out how fast the car was moving, we can begin by converting Jones' speed into meters per minute because the distance is given in meters and time in minutes. Jones moves at 50 km/h which is approximately 833.33 meters per minute (since 50,000 meters in 60 minutes).
Jones catches up to the car in 4 minutes, which means he covers the 800-meter gap plus however far the car travels in that same time. In 4 minutes, Jones travels 4 minutes * 833.33 meters/minute = 3333.32 meters. Therefore, the car must have traveled 3333.32 meters - 800 meters = 2533.32 meters in 4 minutes.
We can then calculate the car's speed by dividing the distance it traveled by the time it took: 2533.32 meters / 4 minutes, which gives us 633.33 meters per minute. To convert this back into kilometers per hour, we multiply by 60 minutes and divide by 1000 meters to get the speed of the car in km/h. This results in 38 km/h as the car's speed.
What decimal is greater than 0.15 and less than 0.7?
Any decimal number that lies between 0.15 and 0.7 meets the criteria, such as 0.6, 0.20 or 0.30. In mathematics, there can be infinite possibilities between these values as you can always add more digits after the decimal point.
Explanation:In mathematics, a decimal number greater than 0.15 and less than 0.7 could be any number that falls within these two boundaries. For example, 0.6 is a decimal number that would meet these criteria. Alternatively, a number like 0.20 or 0.30 would also satisfy the conditions specified in the question.
Remember, a decimal between two numbers can have infinite possibilities. That's because you can always add more digits after the decimal point (for example, 0.601, 0.602, 0.603, ..., and so on).
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What is 3 divided by 260
Answer:
86.666666 or 0.01153846153
Answer:
0.0115
Step-by-step explanation:
Homework counts as 10%, quizzes as 20% and tests as 70%. If the homework grade is 92, quiz grade is 68 and test grade 81 what’s the final grade?
Answer:
[tex]Final\ grade=79.5[/tex]
Step-by-step explanation:
[tex]Homework\ grade=92\\\\quiz\ grade=68\\\\Test\ grade=81\\\\Final\ Grade=10\%\ of\ homework\ grade+20\%\ of\ quizzes\ grade+70\%\ of\ test\ grade\\\\Final\ Grade=\frac{10}{100}\times 92+\frac{20}{100}\times 68+\frac{70}{100}\times 81\\\\Final\ grade=0.1\times 92+0.2\times 68+0.7\times 81\\\\Final\ grade=9.2+13.6+56.7\\\\Final\ grade=79.5[/tex]
Final answer:
The final grade, calculated by weighting the individual grades for homework, quizzes, and tests, and then applying standard rounding rules, would be a rounded grade of 80.
Explanation:
To calculate the final grade based on the given weights, multiply each individual grade by its respective percentage and then add the results together. Here's a step-by-step calculation:
Homework: 92 (weight 10%) -> 92 x 0.10 = 9.2
Quizzes: 68 (weight 20%) -> 68 x 0.20 = 13.6
Tests: 81 (weight 70%) -> 81 x 0.70 = 56.7
Add these results together to get the final grade:
9.2 (Homework) + 13.6 (Quizzes) + 56.7 (Tests) = 79.5
Using standard rules for rounding, 79.5 would be rounded to 80, which is typically a 'B' grade.
Trina and Jessie went on vacation to Hawaii. Trina went scuba diving and reached an elevation of -85.6 meters. Jessie went hand gliding and reached an altitude of 87.9 meters. Write and solve an equation to find the distance between Trina and Jessie.
Answer:173.5
Step-by-step explanation:87.9+85.6 =173.5
you have to use absolute value to turn them both positive
Hope this helps
Graph the linear function described by the equation
y = -3x - 2
X
y
Step 1: Identify the slope and y-intercept.
slope =
NA
Check
write the ratio as a fra tion in the lowest term
8. Teacher-to-student ratio in a school is
8 teachers to 160 students.
Mr. Spencer sells furniture. He earned $225 for selling 5 sofas. Mr. Spencer earned $300 for selling 8 sofas. Which of the following equations represents this situation, where s represents the number of sofas Mr. Spencer sold and e represents the amount he earned?
e = 45s+100
e = 25s+100
e = 45s
e = 35s
First divide the commission by the number sold:
225/5 = 45
300/8 = 37.5 since the commission is a different amount it is not just multiplication so the last two answers are not correct.
Since for 5 the commission was 45 but for 8 it was less than 45, the equation can’t use 45 as a multiplier
The answer has to be E= 25s + 100
what is 5% simple interest for one year on $575?
Answer:
Step-by-step explanation:
Simple interest I = P×R×T/100
P = $575
T = 1year
R = 5%
I = $(575 × 5 × 1)/100
I = $ 28.75
simplify 2/3(3x+6)-3
Answer:
Baked Potato
Step-by-step-explanation:
Go ahead to the nearest grocery or supermarket, and buy a plain potato, go back home and take the plastic off of it, put it in the microwave on it's side for around 6 or 7 minutes, depending how burnt you like it, 6 is normal, 7 is a little bit burnt. Take it out with an oven mitt, as it will be very hot, and flip it over on the other side and put it in the microwave on the side for that many minutes as you did before. After the timer, take it out with something on your hands to protect them, then slit the middle with a knife, and add some butter and mash it around, and enjoy!
One morning, a diner chef had 176 breakfast orders. The circle graph shows the types of orders. About how many orders were for eggs? A circle graph titled Breakfast Orders. The graph has four sectors. The sector labeled Waffles has a value of 28%. The sector labeled Eggs has a value of 43%.The sector labeled Pancakes has a value of 10%. The sector labeled Cereals has a value of 19%. a) 133 b)119 c) 76 d)43
Answer:
76
Step-by-step explanation:
Given that in one morning, a diner chef had 176 breakfast orders.
Now, a circular graph shows the types of orders and it shows that 43% of the total labeled as the Eggs order.
We have to find the number of orders were there for eggs.
Now, it will be 43% of total breakfast orders i.e. 176.
Hence, it was [tex]176 \times \frac{43}{100} = 75.68[/tex] ≈ 76 (Answer)
To find the quantity of egg orders, we multiply the total number of orders (176) by the percentage of orders for eggs (43%). The result, 75.68, is rounded to the nearest whole number to get 76 orders.
Explanation:The question is about calculating a certain percentage of the total number of breakfast orders. Given that the total number of orders is 176 and the percentage of orders that were for eggs is 43%, we can calculate the number of egg orders by multiplying 176 by 43% (or 0.43 as a decimal).
To calculate this, take the total number of breakfast orders and multiply it by the percentage of orders that were for eggs. In this case, that would be 176 (the total orders) multiplied by 0.43 (the percentage of orders made up of eggs).
Here's how to calculate it: 176 * 0.43 = 75.68 Because we can't really have a fraction of an order, we'll round to the nearest whole number, which gives us 76 orders.
Therefore, the answer is c) 76.
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factor 1/2 out of 1/2x - 33/2
Answer:
Step-by-step explanation:
1/2x-33/2=1/2(x-33)
The process of factoring 1/2 out of the equation 1/2x - 33/2 involves dividing each term in the expression by 1/2. This process yields the result x - 33.
Explanation:To factor 1/2 out of the expression 1/2x - 33/2, you perform the factoring by dividing every term in the expression by 1/2. In mathematics, factoring is a crucial concept and is widely used in simplifying expressions, solving quadratic equations, and multiple other scenarios. So, the factoring works as follows:
Divide the term 1/2x by 1/2. This results in x. Divide the term 33/2 by 1/2. This results in -33.
Hence, when you factor 1/2 out of 1/2x - 33/2, the result is x - 33.
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What numbers describes the values of the square root of 215
Answer:
The value in decemal form would be 14.66287829 or 14.66287
Step-by-step explanation:
√ 215
Use two points on the graph to find the slope. How does the slope relate to the unit cost?
A box of expo markers are priced $10.99. How much will I pay after a 10% teacher discount and 6.5% sales tax