Answer:
34
Step-by-step explanation:
BODMAS (Bracket, Division, Multiplication, Addition, Subtraction )rule
First we solve brackets :
60+8=68
1/2(68)= 34
in Eduardo’s collection, the number of butterflies is 12 more than twice the number of moths. If there are x moths, write an expression to represent the number of butterflies he has.
Answer:
An expression to represent the number of butterflies he has is y = 12 + 2x
Step-by-step explanation:
Let the number of butterflies in Eduardo’s collection be y
Then according to the question
The number of moths = x
The number of butterflies y = 12 + twice the number of moths---------(1)
Twice the number of moths = [tex]2 \times \text{number of moths}[/tex]
Twice the number of moths = 2x -----------------------(2)
Substituting equation (2) in (1)
The number of butterflies y = 12 + 2x
Area of a rectangle is 100 sq ft. The length is 10 ft longer than twice it’s width. What is the length and the width.
The length of the rectange is 20ft and width of the 5ft.
Step-by-step explanation:
Let us consider a rectangle and its area is known to be 100 sq ft.
We are given the information that the length of the rectangle is 10ft longer than twice its width.
⇒Length l = 2w+10.
Where w is the width of the rectangle.
The formula for area of the rectangle A = length × width.
A= (2w+10)×w.
100 = [tex]2w^2+10w[/tex].
0=[tex]2w^2+10w-100[/tex].
Thus it forms an quadratic equation we have to solve for the solution.
0=(2w-10)(w+10).
2w-10=0. w+10=0.
2w=10. w=-10. (negative value cannot be choosed.)
w=[tex](\frac{10}{2} )[/tex].
w=5ft.
Thus width is is 5 ft.
Length = 2(5)+10.
=10+10.
=20ft.
Thus the length is 20ft.
Roxy has some necklaces. Kelly has 4 times more rings than Roxy. Together they have 35. How many necklaces does Roxy have?
Answer:
Roxy has 7 necklaces.
Step-by-step explanation:
35 = n + 4n
35 = 5n
5 = 5
n = 7
The problem is a simple algebra problem related to ratios. By setting up an equation according to the given information, we find that Roxy has 7 necklaces.
Explanation:This is a math problem concerning ratios and simple algebra. Let's denote the number of necklaces that Roxy has as R. Then, Kelly has 4 times more rings, which is 4R. Together they have 35. So, the equation can be set up as:
R + 4R = 35
Combine like terms, you get:
5R = 35
Then, you can solve for R by dividing both sides by 5:
R = 35/5 = 7
So, Roxy has 7 necklaces.
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On a certain hot summer's day, 391 people used the public swimming pool. The daily prices are $1.25 for children and $2.25 for adults. The receipts for admission totaled $752.75. How many children and how many adults swam at the public pool that day?
Final answer:
there were 127 children and 264 adults.
Explanation:
To solve this problem, we use a system of equations. Let's denote the number of children as C and the number of adults as A. We know two facts: the total number of people is 391, and the total amount of money collected is $752.75. Therefore, we have the equations:
C + A = 3911.25C + 2.25A = 752.75To solve this system, we first multiply the first equation by 1.25 to align the coefficient of C with the second equation:
1.25(C + A) = 1.25(391)1.25C + 1.25A = 488.75Next, we subtract this result from the second equation to eliminate C, leaving an equation in terms of A only:
2.25A - 1.25A = 752.75 - 488.75
A = (264) / 1 = 264
Substituting the value of A into the first equation, we find the value of C:
C + 264 = 391
C = 127
Therefore, there were 127 children and 264 adults who swam at the public pool that day.
How many times does 7 go into 52
Answer:
7.43
Step-by-step explanation:
52/7 = 7.4285714...
that can be shortened to 7.43
7.43
Step-by-step explanation:
52/7 = 7.428
Can someone explain the differences in discrete vs. continuous data and how these are graphed differently on a histogram?
Answer:
Discrete data means that it is not continuous and is graphed as a line with dashes.Continuous data goes on forever and is usually linear. It is graphed as a straight line all the way through.
Step-by-step explanation:
Hope that helps.
The deepest part of a swimming pool is 12 feet deep the shallowest part of the pool is 3 feet deep. what is the ratio of the depth of the deepest part of the pool to the depth of the shallowest part of the pool?
Answer:
12 : 3
Step-by-step explanation:
You put the depth of the deep before the depth of the shallowness to get the ratio. The ratio could be written like,
12 : 3
12 / 3
12 to 3
Answer:
the answer to the question is 12:3
Consider the formula
d
=
m
V
d=
V
m
d, equals, start fraction, m, divided by, V, end fraction, where
d
dd represents density,
m
mm represents mass and has units of kilograms
(kg)
(kg)left parenthesis, start text, k, g, end text, right parenthesis, and V
Represents volume and has units of cubic meters
(m3)
(m
3
)start text, left parenthesis, m, end text, cubed, right parenthesis.
Select an appropriate measurement unit for density.
Option C:
[tex]$\frac{\text{kg}}{\text{m}^3}}[/tex]
Solution:
Given data:
[tex]$\text{d}=\frac{\text{m}}{\text{V}}[/tex]
where "d" represents density
"m" represents mass
"V" represents volume
The unit of mass is kilogram (kg).
The unit of volume is cubic metres [tex](\text{m}^3)[/tex].
To find an appropriate measurement unit for density:
[tex]$\text{d}=\frac{\text{m}}{\text{V}}[/tex]
Substitute kg and [tex](\text{m}^3)[/tex] in mass and volume respectively.
[tex]$\text{d}=\frac{\text{kg}}{\text{m}^3}}[/tex]
Option C is the correct answer.
An appropriate measurement unit for density is [tex]$\frac{\text{kg}}{\text{m}^3}}.[/tex]
Answer:
option b Kg/m3
Step-by-step explanation:
same as other answer
x−117+120 Simplify the expression
Answer:
Step-by-step explanation:
x-117+120
x+3
Which statements are true? Check all that apply.
Please answer :)
Answer:
[tex]\sqrt{1.8}<1.8[/tex]
[tex]\sqrt{1.8}>1[/tex]
[tex]\sqrt{1.8}<\sqrt{1.9}[/tex]
[tex]1.3<\sqrt{1.8}<1.4[/tex]
[tex]\sqrt{1.8}+\sqrt{1.9}[/tex]
Step-by-step explanation:
[tex]\sqrt{1.8} = 1.34[/tex] [tex]\sqrt{1.9} = 1.38[/tex] [tex]\sqrt{1.8}+\sqrt{1.9}=1.34+1.38=2.72[/tex]
[tex]\sqrt{1.9}-\sqrt{1.8}=1.38-1.34=0.04[/tex]
1.
[tex]\sqrt{1.8}<1.8[/tex]
It is true. since 1.34<1.8
2.
[tex]\sqrt{1.8}>1[/tex]
It is true. Since 1.34>1
3.
[tex]\sqrt{1.8}<\sqrt{1.9}[/tex]
It is true. since 1.34<1.38
4.
[tex]1.3<\sqrt{1.8}<1.4[/tex]
It is true. Since 1.3<1.34<1.4
5.
[tex]\sqrt{1.8}+\sqrt{1.9}[/tex]>2
It is true. Since 2.72>2
6.
[tex]\sqrt{1.8}-\sqrt{1.9}>0.1[/tex]
It is false. Since 0.04<0.1
Leah wrote 2 different fractions with the same denominator.Both fractions were less than 1. Can their sum equal 1? Can their sum be greater than 1? Explain.
Answer:
1. Yes
2. Yes
Step-by-step explanation:
Leah wrote 2 different fractions with the same denominator. Both fractions were less than 1.
1. Can their sum equal 1?
Let Leah fractions be [tex]\dfrac{6}{7}[/tex] and [tex]\dfrac{1}{7}.[/tex] Both these fractions have the same denominators and are less than 1. Find their sum:
[tex]\dfrac{6}{7}+\dfrac{1}{7}=\dfrac{7}{7}=1[/tex]
2. Can their sum be greater than 1?
Let Leah fractions be [tex]\dfrac{6}{7}[/tex] and [tex]\dfrac{5}{7}[/tex]. Both these fractions have the same denominators and are less than 1. Find their sum:
[tex]\dfrac{6}{7}+\dfrac{5}{7}=\dfrac{11}{7}=1\dfrac{4}{7}>1[/tex]
Two fractions with the same denominator can sum to 1 if their numerators add up to the denominator, or they can sum to more than 1 if their numerators together exceed the denominator. This is based on the concept of adding fractions where only the numerators are summed.
Leah wrote two different fractions with the same denominator, and both were less than 1. Can their sum equal 1? Can their sum be greater than 1? The answer to both questions depends on the value of the numerators. Fractions represent parts of a whole. For two fractions with the same denominator to have a sum of 1, the numerators must add up to the denominator. If their sum is greater than the denominator, then the total sum would be greater than 1.
For example, if we have fractions ½ and ¾, their sum is ½ + ¾ = ¾ which is less than 1. However, if we have ¾ and ¾, the sum equals 6/4, which reduces to 1½, a sum greater than 1.
In conclusion, two fractions with the same denominator and each less than 1 can sum to 1 if the numerators total the denominator, or can sum to greater than 1 if the numerators together exceed the denominator. An important aspect of adding fractions is that we only add the numerators and never the denominators.
Rafeal wants to know if there is a single transformation that will move trapezoid JKLM onto trapezoid PQRS Below
Which Statement is true?
A. A 90 counterclockwise roation of trapezoid JKLM about the origin will move angle L onto angle R
B. A 180 rotation of trapezoid JKLM about the origin will move angle J onto angle R
C. A reflection of trapezoid JKLM across the y-axis will move angle K onto angle R
D. There is no transformation Rafael can use because trapezoids JKLM and PQRS are not congruent
A. A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R.
Step-by-step explanation:
Since both the trapezoids, trapezoid JKLM and PQRS are congruent, we can do any transformation, may be rotation, reflection and translation.
A 90° counterclockwise rotation of trapezoid JKLM about the origin will move angle L onto angle R is the true statement others are incorrect statements.
When the Preimage is rotated 90° counterclockwise rotation, then its coordinates (x,y) changed into (-y,x)
HELP NOW BRANLIEST AND 15 points
Answer: C A L C U L A T O R probably on calculator soup
Step-by-step explanation:
Answer:
look at the picture shown
The table shows how a leading automobile dealer plans to spend its advertising dollars for this year. If this company plans to increase its budget by 5% next year, approximately how much will it spend on social media ads? Advertising Budget: $81,000 48.5% Television 23% Magazines 20% Newspapers 7% Radio 1% Billboards 0.5% Social Media $405 $20 $425 $4,250
Answer:
$425
Step-by-step explanation:
Answer:
the answer is c, $425
Step-by-step explanation:
just did the quiz
Kelly has a rock garden with a length of 6 feet. She constructs a scale model of the rock garden using
the scale 1 inch:2 feet.
What is the length of the garden in her model? Show your work, including your proportion.
If the width is 5 inches for the scale model and the scale is still 1 inch to 2 feet, will her scale
model drawing fit on a piece of paper that is 8.5 inches by 7 inches? Why or why not?
Answer:
Answer:
3 inches
It will fit in the paper.
Step-by-step explanation:
In the scale drawing the 2 feet original length is converted to 1 inch drawing length as Kelly constructs a scale model of the rock garden using the scale 1 inch : 2 feet.
Now the proportion is 1 inch : (2 × 12) inches = 1 : 24 {Since 1 foot is equivalent to 12 inches}
Now, maintaining that scale ratio the 6 feet original length of the garden will be converted to [tex]\frac{1}{24} \times (6 \times 12) = 3[/tex] inches in the drawing.
It is also given that the width of the garden in the scale model is 5 inches and the scale is still 1 inch : 2 feet.
Therefore, the dimensions of the garden in the model is 3 inches by 5 inches and this will fit on a piece of paper that is 8.5 inches by 7 inches. (Answer)
The value of y varies directly as the square of x and y=36 when x=3. What is y when x=4?
Answer: y = 64
Step-by-step explanation:
y <> x² ----------------------- 1
y = kx² ----------------------- 2
36 = 3²k
36 = 9k
K = 36/9
= 4.
To find y when x = 4, we substitute for x in equation 2
y = kx²
y = 4²k
y = 16 x 4
y = 64
The value of y, which varies directly as the square of x, is determined by first identifying the constant of variation from the given values, in this case, y = 36 when x = 3. The constant is found to be 4. Using this constant (k), when x is 4, y will be 64.
Explanation:The value of y varies directly as the square of x, which is represented mathematically as y = kx², where k is the constant of variation. Using the given that y = 36 when x = 3, we can determine k by substituting these values into the equation. Thus, k = y/x² = 36/9 = 4. Now, having the value for k, we can find y when x = 4 by substituting these values into the equation: y = kx² = 4×16 = 64. Therefore, y equals 64 when x equals 4 in the given relation.
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a reflection through what line will move P(-4, 5) to P'(4,5)?
r __________
Step-by-step explanation:
Reflection through y-axis.
Answer:wait
Step-by-step explanation:
What is 3/4(121+8) in distributive property
Answer:
387/4
Step-by-step explanation:
121+8=129
3/4(129)=387/4
Russell randomly surveys seventh-graders in his school and finds that 6 of 30 attend summer camp. If there are 200 seventh-graders in his school, about how many are expected to attend summer camp? Enter your answer in the box.
----------eighth -graders
Answer:
40
Step-by-step explanation:
6 of 30 is the ratio 6 to 30 or 6/30.
6/30 reduces to 1/5
The survey shows that 1/5 of the students attend summer camp.
1/5 of 200 = 1/5 * 200 = 40
What is 1/4 * 4x + 8
Which of the following expressions are equivalent to -8 -(-1)-5
Answer:
Step-by-step explanation:
-8 -(-1)-5
Opening bracket
= -8 + 1 - 5
= -12
The student's expression -8 -(-1)-5 simplifies to -8 + 1 - 5, which is equal to -12 after performing the addition and subtraction sequentially.
The expression in question is -8 -(-1)-5. To solve this, we need to recognize that subtracting a negative number is the same as adding its positive equivalent. So, the expression simplifies to -8 + 1 - 5.
Now, we perform the addition and subtraction in the order they appear:
First, we add 1 to -8, which gives us -7.Then, we subtract 5 from -7, which gives us -12.Therefore, the expression -8 -(-1)-5 is equivalent to -12.
Question text
If x − 2 = 1/3, then what is the value of x to the power of 2 − 4x + 4?
Answer: 1/9
Step-by-step explanation:
The soda can is a cylinder with a diameter of 2 inches and a height of 5 inches. What is the area
Answer:
?
Step-by-step explanation:
4.) Mr. Souders purchased a car priced at $9800. He paid $500 down and
agreed to a monthly payment of $250 per month for 48 months.
Including the down payment, what is the total cost of the car?
Please show your work.
Answer:
The total cost of the car including the down payment = $12,500
Step-by-step explanation:
The Original price of the car = $9800
The amount paid for down payment = $500
Also, the monthly payment amount = $250
Now, the number of months, the amount is paid = 48 months
So, the TOTAL amount paid in 48 months
= 48 x ( Amount paid each month) = 48 x ( $250)
= $12,000
So, the TOTAL PRICE of CAR paid = Total amount paid in 48 months + The amount paid for down payment
= $12,000 + $500
= $12,500
Hence, the total cost of the car including the down payment = $12,500
find the x-intercepts and y-intercepts of 10x+6y=-4
The x intercept is [tex](\frac{-2}{5}, 0)[/tex]
The y intercept is [tex](0, \frac{-2}{3})[/tex]
Solution:
Given equation is:
10x + 6y = -4
The x intercept is the point where the line crosses the x axis
The y intercept is the point where the line crosses the y axis
Find x intercept:
Substitute y = 0 in given equation
10x + 6(0) = -4
10x = -4
[tex]x = \frac{-4}{10}\\\\x = \frac{-2}{5}[/tex]
Thus the x intercept is [tex](\frac{-2}{5}, 0)[/tex]
Find y intercept:
Substitute x = 0 in given equation
10(0) + 6y = -4
[tex]6y = -4\\\\y = \frac{-4}{6}\\\\y = \frac{-2}{3}[/tex]
Thus the y intercept is [tex](0, \frac{-2}{3})[/tex]
the sum of two consecutive integers is one less than three times the smallest integer. find the two integers
Answer:
n + (n+1) = 3n -1
n = 2
the integers are 2 and 3
Step-by-step explanation:
Fill in the table using this function rule. y=-3x+5
The missing values are 11, 8, 5 and 2 respectively.
The picture of the question in the attached figure
we have
y=-3x+5
Substitute the different values of x in the linear equation, to obtain the
different values of y in the table
For x-2-> y=-3(-2)+5=11
For x=-1-> y=-3(-1)+5=8
For x-0->9=-3(0)+5=5
For x-1->y=-3(1)+5=2
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Natalie's coach has a stopwatch that records times to the nearest thousandth of a second. Natalie ran a given distance in 25.453 seconds.
What is Natalie's time rounded to the nearest tenth of a second?
Enter your answer in the box.
___s
Answer:
25.5
Step-by-step explanation:
Solve the equation for the variable
X/2+1=6
it cost $45.75 for 5 apple pies. give the point of the unit rate