Answer:
10
Step-by-step explanation:
Given
[tex]x+y=8\\ \\4x-y=22[/tex]
Add these two equations:
[tex]x+y+4x-y=8+22\\ \\5x=30\\ \\x=6[/tex]
Substitute it into the first equation:
[tex]6+y=8\\ \\y=8-6\\ \\y=2[/tex]
Then
[tex]2x-y=2\cdot 6-2=12-2=10[/tex]
33 take test 25 passed what percentage failed
Answer:
24.24%
(Round down to 24% if needed)
Step-by-step explanation:
33 - 25 = 8 failed
Find Percentage
8/33 = x/100
Cross multiply
8(100) = 33(x)
800 = 33x
x = 24.24%
Hope this helps :)
Answer:
75%
Step-by-step explanation:
because...
you divide 33 by 25 and you get 0.75757575757
and you just roud that to about 75%
What is the rule for 4,7,13,25,49,97
Answer:
The rule is x2 -1 (times two minus one)
4 - 1 = 3
4 + 3 = 7
7 - 1 = 6
7 + 6 = 13
13 - 1 = 12
13 + 12 = 25
25 - 1 = 24
25 + 24 = 49
49 - 1 = 48
49 + 48 = 97
The dimensions of a right rectangle prism are 3/4 m, 1.89 m, and 3 m.
What is the volume of the right rectangle prism use the formula V = l x w x h
Answers
A. 1.4175 m^3
B. 2.25 m^3
C. 4.252 m^3
D. 5.64 m^3
The volume of the right rectangle prism is V = 4.252 m³.
The correct option is C.
What is prism?In three-dimensional space, a prism is a polyhedron where two ends are similar.
Given:
The dimensions of a right rectangle prism are 3/4 m, 1.89 m, and 3 m.
The volume of the right rectangle prism use the formula V = l x w x h.
That means,
V = 3/4 x 1.89 x 3
V = 4.252 m³
Therefore, V = 4.252 m³.
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2 times what equals 120
In order to solve the problem '2 times what equals 120', you need to find the value of X in the equation 2*X = 120. The answer is 60, as 2 times 60 equals 120.
Explanation:In Mathematics, the problem "2 times what equals 120" is an example of a basic equation you can solve. When you're trying to find the number that 2 times, or multiplied by 2, equals 120, you're looking for the value of the unknown variable in the equation 2*X = 120. To solve this, you would divide both sides of the equation by 2. Thus, X equals 60 because 2 times 60 equals 120.
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To find the number that when multiplied by 2 equals 120, you simply divide 120 by 2, which results in 60.
To find this number, we divide 120 by 2. Therefore, the equation is 2 x ? = 120.
Dividing 120 by 2 gives us:
120 ÷ 2 = 60.
So, 2 times 60 equals 120.
Jackson drove 1,080 miles
in 20 hours. What was his
speed in miles per hour?
Answer:
54mph
Step-by-step explanation:
To find the speed in "miles per hour" or miles/hour, divide the number of miles by number of hours.
1080 miles/20 hours
= 54miles/hour
His speed is 54 miles per hour.
A cannon launches a cannon ball into the air at an angle. Which of the
following two terms best describe the cannon ball's motion?
A. Two-dimensional motion
B. One-dimensional motion
C. Speed
D. Projectile motion
Answer:
A. Two-dimensional motion
D. Projectile motion
Step-by-step explanation:
The cannon ball is a projectile, so it follows projectile motion. Since it is launched at an angle, it moves both vertically and horizontally, so it also has two-dimensional motion.
Describe, in words, the solution set for the following equation.
3x+3=3+3x
Answer:
Infinite Answers
Step-by-step explanation:
You subtract 3x from both side which leaves you with 3=3, which leaves you to conclude there are infinite answers to this equation.
Vendelin lives between two bus stops in 3/8 their lenght. Bus speed is 60 km/h. If Vendelin runs from home, he will be at the bus stop at the same time as bus. What is speed of Vendelin?
Answer:
Speed of Vendelin is 60 kilometre per hour.
Step-by-step explanation:
Given:
The Distance two bus stops = [tex]\frac{3}{8}[/tex]
Speed of the bus = 60 km/h
To Find:
The Speed of vendelin = ?
Solution:
Let the speed bof vendelin be x. the it is stated that
" If Vendelin runs from home, he will be at the bus stop at the same time as bus."
So
Time Taken by the bus
=>[tex]\frac{ \text{ distance between the bus stop}}{\text{ speed of the bus}}[/tex]
=>[tex]\frac{\frac{3}{8}}{60}[/tex]
=>[tex]\frac{\frac{3}{8}}{\frac{1}{60}}[/tex]
=>[tex]\frac{3}{480}[/tex]------------------------------(1)
Time Taken by Vendelin
=>[tex]\frac{ \text{ distance between the bus stop}}{\text{ speed of Vendelin }}[/tex]
=>[tex]\frac{\frac{3}{8}}{x}[/tex]
=>[tex]\frac{3}{8x}[/tex]----------------------------------(2)
Equating (1) and (2) we get
[tex]\frac{3}{480}[/tex] = [tex]\frac{3}{8x}[/tex]
[tex]3 \times 8x = 3 \times 480[/tex]
[tex]3 \times 8x = 1440[/tex]
[tex] 8x =\frac{1440}{3}[/tex]
[tex] 8x = 480[/tex]
[tex] x =\frac{480}{8}[/tex]
x = 60
What is 653,228
rounded to the nearest thousand
653,000 I think
since the thousands place has a 3, the first part would stay the same, 000 is added
Hope I helped :)
Answer:
653,228
Step-by-step explanation:
_________
l 700,000 l
l_________l
cause 5 is over 5 and 5 +1 to 6 +7 and all other numbers will become 0's so its 700,000
PLEASE HELP ASAP!!!!
Write each ratio as a fraction in lowest terms.
1.8 to 9
2.11 to 15
3.30 minutes to 90 minutes
Answer:
1 to 5
211 to 1500
11 to 300
Step-by-step explanation:
1.8 to 9 = 18/90 = 1(18)/5(18) = 1/5 = 1 to 5
2.11 to 15 = 211/1500 = 211 to 1500
3.30 to 90 = 330/9000 = 110/3000 = 11/300 = 11 to 300
The number -2.34 can be found between which two integers?
(Full question above)
Answer:
last option
Step-by-step explanation:
imagine a number line
________________________________________________
-3 -2 -1 0 1 2 3
|
-2.34 would be found somewhere over there
The square below represents one whole.
Express the shaded area as a fraction, a decimal, and a percent of the whole.
Fraction:
Decimal:
percent
Answer:
[tex]\text{Shaded area as fraction}=\frac{81}{100}[/tex]
[tex]\text{Shaded area as decimal}=0.81[/tex]
[tex]\text{Shaded area as percent of the whole}=81\%[/tex]
Step-by-step explanation:
Please consider the attached image as the given square.
We are asked to express the shaded area as a fraction, a decimal, and a percent of the whole.
We can see that in our figure there are 100 squares as there are 10 rows and each row contains 10 squares.
We can also see that there are 81 shaded squares out of 100 squares, so we can represent it as a fraction as:
[tex]\frac{\text{Shaded squares}}{\text{Total squares}}[/tex]
[tex]\text{Shaded area as fraction}=\frac{81}{100}[/tex]
To convert the shaded area into decimal, we need to divide 81 by 100.
[tex]\text{Shaded area as decimal}=0.81[/tex]
To convert the shaded area into percent, we need to multiply 0.81 by 100.
[tex]\text{Shaded area as percent of the whole}=0.81\times 100\%[/tex]
[tex]\text{Shaded area as percent of the whole}=81\%[/tex]
The fraction is: 44/100
The Decimal is: 0.44
Percent: 44%
____________________________________________________________
FractionThe square is split into 100 equal pieces. 44 of the 100 pieces are shaded. so you can write the fraction as 44/100______________________________________Decimal44/100 can also be expressed 44 hundredths. Let's use a place value chart to write 44 hundredths as a decimal.________________________________
| tens | ones | . | tenths | hundredths |
|_____|___0__|_._|___4__| 4 |
______________________________________PercentThe ratio of shaded pieces to total pieces 44:100.percent means per hundred so, we can write the percent as 44%.During the summer, Joshua plans to work on his uncle’s soybean farm. His uncle says that Joshua has two options for being paid. For the first option, Joshua earns $20 each day he works. For the second option, he earns one nickel for agreeing to work, and that amount doubles each day he works after that. Joshua plans on working 3 days a week for 8 weeks. Which option should he choose?
Answer:
The second option is best to choose.
Step-by-step explanation:
Joshua plans on working 3 days a week for 8 weeks. Therefore, Joshua will work for (8 × 3) = 24 days.
For the first option, Joshua earns $20 each day he works. So, in 24 days he will earn (20 × 24) = $480.
For the second option, he earns one nickel for agreeing to work, and that amount doubles each day he works after that.
So, the total earning of Joshua after 24 days of work will be
0.05 + 0.1 + 0.2 + 0.4 + 0.8 + 1.6 + ......... up to 24 terms {Since 1 nickel is equal to $0.05}
Now, this is an G.P. series sum and first term is 0.05, common ration is 2 and the number of terms is 24.
So, the sum = [tex]0.05 \times \frac{2^{24} - 1 }{2 - 1}[/tex]
= $838860.75
Therefore, the second option is best to choose. (Answer)
Final answer:
To decide between the payment options, Joshua should calculate the total income for the first option ($480) and compare it to the exponentially growing total of the second option, which would be far greater due to the daily amount doubling. Therefore, the second option is the more lucrative choice.
Explanation:
The student's question pertains to determining which of the two payment options offered by Joshua's uncle for work on a soybean farm is more advantageous. Joshua needs to calculate the total earnings for each option over the course of 8 weeks, given that he will work 3 days each week. For option one, it is straightforward: $20 per day times 3 days per week times 8 weeks equals a total of $480. Option two, however, requires calculating the total amount for a doubling sequence starting with a nickel ($0.05).
For option two, the earnings for each week will look like this:
Week 1: Day 1 = $0.05, Day 2 = $0.10, Day 3 = $0.20
Week 2: Day 1 = $0.40, Day 2 = $0.80, Day 3 = $1.60
...and so on. The amount doubles each day Joshua works.
Calculating this for the 24 days (3 days times 8 weeks) will show that on day 24, Joshua's daily earnings would be $0.05 ×223 (since the first day is $0.05 and does not double).
Comparing the total earnings from both options will reveal that Joshua will earn significantly more with the second option. Therefore, Joshua should choose the second payment option.
How do the numbers compare
The fact family model represents the relationship between
the numbers 8, 7, and 15.
15 is 7 more than 8.
15 is 8 less than 7.
7 is 15 less than 8.
07 is 8 more than 15.
Answer:
A
Step-by-step explanation:
8+7=15
For the numbers 8, 7, and 15, the true statements are '15 is 7 more than 8' and, when rephrased correctly, '7 is 8 more than 15'. The concept of significant figures plays an important role in mathematical operations to maintain the accuracy of results based on the precision of original numbers.
Explanation:The fact family model is used to represent the relationship between three numbers that can form addition and subtraction statements. For the numbers 8, 7, and 15, only some of the given statements are true. Let's verify each statement:
15 is 7 more than 8: This statement is true, as 8 + 7 equals 15.
15 is 8 less than 7: This statement is false, as adding 8 to 7 gives us 15, not taking 8 from 7.
7 is 15 less than 8: This statement is false, as subtracting 15 from 8 would give us a negative number, not 7.
7 is 8 more than 15: This statement is true when we rephrase it correctly as 7 + 8 equals 15.
Therefore, only two statements are accurate: '15 is 7 more than 8' and '7 is 8 more than 15' when considered as 7 + 8 = 15.
The subject of significant figures and rounding is also related to mathematics. When performing mathematical operations, significant figures are crucial to ensure that our answers are as accurate as the precision of the numbers we started with, without overstating the certainty of our results. This becomes important when adding, subtracting, multiplying, or dividing numbers in mathematics.
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Which property is illustrated by the statement?
(2+3.4) + 6 = 2 + (3.4+6)
Associative Property of Addition
Commutative Property of Multiplication
Inverse Property of Multiplication
Commutative Property of Addition
Answer:
The given expression represents the Associative Property of Addition.
Step-by-step explanation:
Here, the given expression is given as:
(2+3.4) + 6 = 2 + (3.4+6)
Now, for any 3 terms a, b and c the given properties in the options are described as:
1. Associative Property of Addition
(a +b) + c = a + (b + c)
2. Commutative Property of Multiplication
a x b = b x a
3. Inverse Property of Multiplication
[tex]a \times \frac{1}{a} = 1[/tex]
4. Commutative Property of Addition
a+ b = b + a
Hence, from the given expression,we can see that:
(2+3.4) + 6 = 2 + (3.4+6)
⇒(a +b) + c = a + (b + c)
Hence, the expression represents the Associative Property of Addition
Final answer:
The statement (2+3.4) + 6 = 2 + (3.4+6) demonstrates the Associative Property of Addition, indicating that the sum of a set of numbers is the same regardless of how the numbers are grouped.
Explanation:
The property illustrated by the statement (2+3.4) + 6 = 2 + (3.4+6) is the Associative Property of Addition. This property states that when adding three or more numbers, the way in which the numbers are grouped does not change the sum. For instance, as shown in the statement, (a + b) + c equals a + (b + c), which means that the groupings of the numbers can be changed without affecting the total sum. This is not to be confused with the Commutative Property of Addition, which is about the order of the numbers and states that A + B equals B + A. The commutative property tells us that we get the same result whether we add 2 + 3 or 3 + 2. However, the question explicitly deals with the grouping of numbers, not the order, thus confirming that the associative property is in use.
A carpet square is 9inches what’s the area of the carpet square?
Answer:
The area of the carpet which is square in shape is 81 [tex]inches^2[/tex]
Step-by-step explanation:
Given:
side of the carpet square = 9 inches
To Find:
area of the carpet square = ?
Solution:
The area of the carpet = area of the square
we know that the area of the square is
=> side X side
Substituting the side of the square, we get
=> 9 X 9
=> 81 [tex]inches^2[/tex]
Emily and Chen built clay figurines for art class. Emily figurine is 5' 1" tall Chen's figurine is 3' 8" tall how much taller is emily's figurine than chen's in inches
Emily's figurine is 17 inches taller than Chen's figurine
Step-by-step explanation:
Emily and Chen built clay figurines for art class
Emily figurine is 5' 1" tallChen's figurine is 3' 8" tallWe need to find how much taller is Emily's figurine than Chen's in inches
To solve this problem we must to change the heights of the two figurines to inch
∵ Emily's figurine is 5' 1" tall ⇒ 5 feet and 1 inch
∵ 1 foot = 12 inches
∴ The height of Emily's figurine = 5(12) + 1
∴ The height of Emily's figurine = 60 + 1
∴ The height of Emily's figurine = 61 inches
∵ Chen's figurine is 3' 8" tall ⇒ 3 feet and 8 inches
∵ 1 foot = 12 inches
∴ The height of Chen's figurine = 3(12) + 8
∴ The height of Chen's figurine = 36 + 8
∴ The height of Chen's figurine = 44 inches
To find how much taller is Emily's figurine than Chen's in inches subtract their heights
∵ The difference between the two figurine = 61 - 44
∴ The difference between the two figurine = 17 inches
∴ Emily's figurine is 17 inches taller than Chen's figurine
Emily's figurine is 17 inches taller than Chen's figurine
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The shortest and longest sides of a right triangle have lengths of 11.1 inches and 18.5 inches, respectively. What is the length of the third side of the triangle?
Answer: 14.8
Step-by-step explanation:
11.1^2 + x^2 = 18.5^2
X is 14.8
X= 2/8
What is its additive inverse?
Question 3 options:
-2/8
2/8
8
1/2
Answer:
-2/8
Step-by-step explanation:
The rule of additive inverse stays the same with fractions
Answer:
-2/8
Step-by-step explanation:
PLZ HELP ME THIS IS URGENT HELP!!!!!!!
Answer:
Value is 3.The volume of the rectangular prism is 105 [tex]ft^{3}[/tex]The value will be 186.1Step-by-step explanation:
The value of the expression is [tex]\frac{75}{5} - [(9 - 7) \times 3]\times 2 = 15 - 6\times2 = 15 - 12 = 3[/tex]
The formula to get the volume is [tex]length \times width \times height = 3\times 5\times 7 = 105[/tex]
[tex]\frac{8375}{45} = \frac{1675}{9} = 186.1[/tex]
Answer:
it is explained below..
Step-by-step explanation:
1. by using BODMAS rule: [ brackets of division multiplication addition subtraction] we have to do operations in this order only i.e, from brackets to subtractions.
given expression : 75[tex]\div[/tex]5-[(9-7)*3]*2
first solve brackets part:75[tex]\div[/tex]5-[(2)*3]*2
[as, 9-7=2]
75[tex]\div[/tex]5-[6]*2
[as, 2*3=6]
division part: 15-6*2multiplication part: 15-12 = 32. volume of rectangular prism: length*breadth*height
=7*3*5
=105
3. 8375[tex]\div[/tex]45
use conventional division method as 8375 isn't divisible by 45 directly.
after solving, answer: 186.11...
alex bakes $24$ apple, blueberry, and cherry pies. The ratio of apple to blueberry to cherry pies is $1:4:3$. How many cherry pies did Alex bake?
Answer:
Alex baked 9 cherry pies
Step-by-step explanation:
apple : blueberry : cherry = 1:4:3
apple + blueberry + cherry = 24
1 part: 24 / ( 1+4+3) = 24 / 8 = 3
** Cherry has 3 parts: 3 x 3 = 9
check: apple = 3 x 1 = 3
blueberry: 3 x 4 = 12
12 + 3 + 9 = 24
Answer:
9
Step-by-step explanation:
Aops Problem
If Jake is skiing at 4.5km at week 6 which statement is true?
He is above his goal
He is at his goal
He is below his goal
Answer:
He is below his goal
Step-by-step explanation:
see the attached figure to better understand the problem
Let
x -----> the number of weeks
y ---->skiing distance in kilometers
Looking at the graph of Jake's goal
we have the ordered pair (6,5)
That means
The number of kilometers from Jake's goal for week 6 is 5 kilometers
and
In the actual Jake is skiing at 4.5 km at week 6
so
[tex]4.5\ km < 5\ km[/tex]
therefore
He is below his goal
Write an integer to match A deposit of $225
Answer:
225
Step-by-step explanation:
A deposit is when you add money yo your bank account, so when there is a deposit , you would add
plz hurry!!!! thank you!!!!
Step-by-step explanation:
If there's supposed to be a pic its not popping up...
what expression is equivalent to 2(x + 7)-18x+4/5
To simplify the expression 2(x + 7) - 18x + 4/5, you distribute the 2 across (x + 7), then combine like terms to get the equivalent expression, which is -16x + 14 + 4/5.
Explanation:The expression that is equivalent to 2(x + 7) - 18x + \(\frac{4}{5}\) can be simplified through the distributive property and combining like terms. First, distribute the 2 into the parentheses:
2(x) + 2(7) - 18x + \(\frac{4}{5}\)
= 2x + 14 - 18x + \(\frac{4}{5}\).
Next, combine like terms by subtracting 18x from 2x:
(2x - 18x) + 14 + \(\frac{4}{5}\)
= -16x + 14 + \(\frac{4}{5}\).
So the equivalent expression is -16x + 14 + \(\frac{4}{5}\).
Each polio consists of 4 doses and rack measles vaccination consists of 2 doses.Last year potter gave out a total of 60 vaccinations and that consisted of a total 128 doses.How many polio vaccinations and how many measles vaccinations did dr potter give last year?
Answer:
4 polio
56 measles
Step-by-step explanation:
Write equations to represent the problem
let x be the number of vaccinations for polio
let y be the number of vaccinations for measles
x + y = 60 Equation for vaccinations
4x + 2y = 128 Equation for doses
Solve the system using substitution. Rearrange x + y = 60 to isolate one variable.
x = 60 - y
Substitute x for 60-y in the other equation
4x + 2y = 128
4(60-y) + 2y = 128 Distribute over brackets
240 - 4y + 2y = 128 Collect like terms. They have the variable "y"
240 - 2y = 128 Subtract 240 from both sides
-2y = 128 - 240
-2y = -112 Divide both sides by -2
y = -112/-2
y = 56 Number of measles vaccinations
Substitute y for 56 in x + y = 60
x + y = 60
x + 56 = 60
x = 60 - 56
x = 4 Number of polio vaccinations
Therefore Dr. Potter gave out 4 polio vaccinations and 56 measles vaccinations.
In 2018, Yolanda paid $4,526 in Social Security tax. If the Social Security tax rate was 6.2% to the maximum income of $128,400 that year, what was Yolanda’s taxable income?
Answer:
$73000
Step-by-step explanation:
Given: Social security tax paid by Yolanda is $4562.
6.2% tax to be paid on earning to the maximum income of $128400.
Lets assume Yolanda´s income be `x`.
Now, calculating the taxable income of Yolanda
∴ [tex]62\% \times x= \$ 4526[/tex]
⇒ [tex]\frac{62}{100} \times x= 4526[/tex]
Cross multiplying both side
⇒ x= [tex]\frac{4526\times 100}{6.2}[/tex]
∴x= $73000
∴ Yolanda´s taxable income is $73000.
Answer:
Step-by-step explanation:
Salary x social security tax rate = social security tax
salary x .062 (6.2%)=4526
salary=4526/.062
salary=73000
Which expression is equivalent to
2/3(9x-6)+4(1/2 x -- 1/2)
a:2/3(6x-9)+1/6(x+12)
b:2/3(3x-6)+1/6(x-12)
c:3/4(4x-8)+5(x+15)
d:3/4(4x-12)+1/6(30x+18)
Answer:
D
Step-by-step explanation:
Try dividing
Rory, Lorena, and Phil play a third round of golf. Lorena’s score is 1 in the third round. Phil ties Rory’s score at -3. Write an inequality that shows why Lorena lost that round.
Answer:
(1,-3)
Step-by-step explanation:
what is the square root of 38?
Answer:
6.164414
You can figure this out because 6.164414x6.144414 is 38.