A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours?

Answers

Answer 1

38:2=
19:1=
133:7
133 windows.

Answer 2

To solve this problem, we need to find the unit rate (the amount of windows cleaned per hour) and multiply by 7.

To find the unit rate, we need to divide 38 by 2:

38 / 2 = 19

Now, we need to multiply this by 7:

19 * 7 = 133

In 7 hours, the window washer can clean 133 windows.

Hope this helps!

Related Questions

What is meant by the expression b1/3?

Answers

As an expression, there really isn't much meant by it alone. Unlike in an equation where an expression relates to another expression, this simply means 'One-third of b'.

A flower shop normally orders 35 2/7 pounds of roses each week. The shop is planing on ordering five times as many pound of roses the week of Valentine’s Day. How many pounds of roses should the order be?

176 3/7 pounds
174 pounds
175 5/7 pounds
174 5/7 pounds

Answers

The answer is 176 3/7

35 2/7x 5=
247/7 x 5/1 =
247x5 over 7x1=
1235/7=
176 3/7

I converted it to an improper fraction to multiply and then converted it back into a mixed number.

Answer:

176 3/7

Step-by-step explanation:

Louise is walking 12 miles to raise funds for a local cause. If she has completed
3/4 of the distance, how many miles has she walked?

A. 6
B. 9
C. 8
D. 7

Answers

12 x 3/4 = 36/4 = 9

she has walked 9 miles

Final answer:

Louise has walked 9 miles after completing 3/4 of her 12-mile fundraising walk. Thus, option b is correct.

Explanation:

The student's question asks how many miles Louise has walked if she has completed 3/4 of her 12-mile fundraising walk. To find the distance walked, multiply the total distance by the fraction completed. So, Louise has walked 3/4 of 12 miles, which is calculated as follows:

Multiply 3/4 by 12.

3/4 * 12 = 9.

Thus, Louise has walked 9 miles.

What is the interquartile range of the data set? Enter the answer in the box. Key: 1|5 means 15

Answers

First of all we have to arrange the data in ascending order as shown below:

28, 40, 43, 43, 45, 50, 50

Total number of values = 7

Since the number of values is odd, the median will be the middle value i.e. 4th value which is 43. Median divides the data in two halves:

1st Half = 28, 40, 43
2nd Half = 45, 50, 50

Q1 or the First Quartile is the middle value of the lower or 1st half which is 40.
Q3 or the Third Quartile is the middle value of the upper or second half, which is 50.

IQR or the Inter Quartile Range is the difference of Q3 and Q1.

So, IQR= Q3 – Q1 = 50 – 40 = 10

Thus, IQR for the given data is 10

Answer:

The interquartile range(IQR) of the data set is:

Step-by-step explanation:

The data points according to the stem and leaf plot are as follows:

28 40 43 43 45 50 50

We know that the median of the data is the central tendency of the data and always lie in the middle of the data.

Here looking at the data we have:

Median= 43

Similarly the lower set of data is:

28 40 43

Hence, the first quartile or the lower quartile i.e. [tex]Q_1[/tex] is the median of the lower set of data.

Hence,

[tex]Q_1=40[/tex]

Similarly, the upper set of data is:

45 50 50

Hence, the upper quartile or the third quartile i.e. [tex]Q_3[/tex] is the median of the upper set of data.

Hence,

[tex]Q_3=50[/tex]

The interquartile range(IQR) is calculated as:

[tex]IQR=Q_3-Q_1\\\\IQR=50-40\\\\IQR=10[/tex]

what is the value of the 9 in the number 60.394

Answers

The value of 9 in this number is tenths

It is the tenths because you count after the decimal point so 3 would be considered the oneths and 9 the tenths. Hoped that helped!!!!

What is the average weight of the kittens in the shelter?

Answers

You should add the weights of each kitten and then divide by the number of kittens. Ex. There are 5 kittens weighing 2, 1, 3, 2, and 2. So you would add those to get 10 and divide by the number of kittens which is 5 to get an average of 2.

Average weight of the kitten in the shelter = Total weight of the kittens / Number of kittens.

What is Average?

An average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list.

Here,

Average weight of the kittens in the shelter = Total weight of all kitten/ Number of kittens.

Hence, the average weight of the kitten in the shelter = Total weight of all kitten/ Number of kittens.

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Which rules of exponents will be used to evaluate this expression? Check all that apply. [(-8)^4]-5 (-8)6
product of powers
quotient of powers
power of a power
power of a product
negative exponent
zero exponent

Answers

Answer:

the answers are

b,c,e

quotient of powers, power of a power, and negative exponent

got it right on the quiz

Step-by-step explanation:

Answer:

B,C,E

Step-by-step explanation:

edge 2022

Sandra make a pizza she puts mushrooms on 2/8 of the pizza she adds green peppers to 5/8 of the pizza which topping cover more of the pizza

Answers

Green peppers because 5/8 is greater than 3/8

Hannah keeps her marbles in bags with four marbles in each bag she writes 3/4 to show the number of red marbles in each bag find another fraction to name the number of red marbles and two bags

Answers

2/3 is another Fraction and also is 4/5
Hope This Helped

Which is the slope of the line that passes through the points (2,10) and (5,8)?

Answers

The slope is -2/3. Hope this helps!

Y2-Y1/X2-X1
8-10/5-2=-2/3
Down 2 and 3 to the right

Solve the system of equations

Answers

x + 3y = 5
-x + 6y = 4
Add them together

9y = 9 = y = 1
______________________
x + 3(1) = 5
x + 3 = 5
x = 5 - 3 = 2
X = 2

The answer would be X = 2 and Y = 1

The answer is x=2 and y=1

how do I do this SOS

Answers

#2 is boron nitride

#3 is Dinitrogen trioxide
#4 is nitrogen triiodide
#5 is Sulfur hexafluoride

A recipe calls for quarter of a cup of sugar to make a chocolate mug brownie.how many mugs of brownies can be made with 1 3/4 cups of sugar

Answers

u can make 7 mugs of brownies with 1 3/4 cups of sugar

Answer:

Step-by-step explanation:

1 chocolate mug brownie can be made with quarter (0.25) cup of sugar.

In total we have [tex]1\frac{3}{4}=1.75[/tex] cups of sugar. So, divide 1.75 by 0.25 to get the number of mugs of brownies we can make:

[tex]\frac{1.75}{0.25}=7[/tex]

Hence, we can make 7 mugs of brownies with [tex]1\frac{3}{4}[/tex] cups of sugar.

The first pentagon is dilated to form the second pentagon. Drag and drop the answer to correctly complete the statement. The scale factor is . A pentagon with a side length of 4. An arrow points to a larger pentagon with a side length of 5

Answers

To find the scale factor, we want to find the number that we would multiply 4 by to get 5. This gives us the equation 4x = 5. Solve by dividing both sides by 4:
4x/4 = 5/4
x = 1.25
The scale factor is 1.25.

Final answer:

To find the scale factor for the dilation of a pentagon from a side length of 4 to a side length of 5, divide the new dimension by the original dimension, resulting in a scale factor of 1.25.

Explanation:

The question asks about finding the scale factor used to dilate a pentagon from a side length of 4 to a side length of 5. To find the scale factor, we compare the new dimension to the original dimension. In this case, the side length of the second pentagon is 5, and the side length of the first pentagon is 4. To find the scale factor, we divide the new dimension by the original dimension, which is 5/4. Hence, the scale factor is 1.25.

To clarify, the scale factor is determined by dividing the new dimension (5) by the original dimension (4), yielding 5/4. Therefore, the scale factor is indeed 1.25. This indicates that each side of the pentagon has been multiplied by 1.25 to achieve the dilation from a side length of 4 to a side length of 5.

help with homework. show work

Answers

Hello there! I can help you! The surface area is where you add the areas of the shapes to find the area of the surface. 15 is the side of the square. We can raise 15 to the second power (15²) to get 225. The total surface area is 945 square feet. Let's subtract 225. 945 - 225 is 720. There are 4 triangles. 720 square feet is the sum of the surface area of 4 triangles so let's divde 720 by 4 to find the area of each triangle. 720/4 is 180. The area of each triangle is 180. But we're not done. We need to look for the height. The formula for the area of the triangle is 1/2 the product of base and height. (½bh) When we divide by 2, our answer should be 180. So the product of the two numbers should be 360. We know that the base is 15ft long, so let's divide. 360/15 is 24. 15 * 24 is 360. 360/2 is 180. There. The height of each triangular base is 24 ft.

find the solution of the equation: x2 = 30 -13x

Answers

[tex]x^2=30-13x\ \ \ |+13x-30\\\\x^2+13x-30=0\\\\x^2+15x-2x-30=0\\\\x(x+15)-2(x+15)=0\\\\(x+15)(x-2)=0\iff x+15=0\ \vee\ x-2=0\\\\\boxed{x=-15\ \vee\ x=2}[/tex]

what is 8.6E-10 in standard form

Answers

8.6E-10 is 8.6 x 10^-10 in standard form. As 'E' represents '10^'

Hope it helped!

Your class built a tepee to use in the school play. The tepee has a diameter of 16 feet and a height of 13.5 feet. What is the volume? Use 3.14 for pi. Round your answer to the nearest whole number. please help thank you:)

Answers

volume = PI x r^2 x H/3

3.14 x 8^2 x 13.5/3

3.14 x 64 x 4.5 = 904.32 cubic feet

Tracy is making blueberry muffins.she is using 4/4 cup of honey and 4/2 of floyr.Does Tracy use more honey or more flour?

Answers

more honey because 4/4 makes a whole which is one and which is greater than 4/2

The true statement is that Trace use more flour

How to determine the true statement ?

The given parameters are:

Honey = 4/4 cupFlour = 4/2 cups

Evaluate the quotients

Honey = 1 cup

Flour = 2 cups

2 is greater than 1

Hence, the true statement is that Trace use more flour

Answers

16, 21, 26, 31, 36
just add five to each previous number to make it easier

Can a remainder in a division problem equal the divisor

Answers

No, the remainder in a division problem can never equal or be greater than the divisor.

Formulate a system of equations to represent this situation, with f = the amount of money that Frank spent and r = the amount of money that Rachel spent. Frank and Rachel spent a total of $15.75. If Rachel spends twice as much money as Frank, how much money did they each spend?
A)
B)
C)
D)

Answers

Rachel and Frank spends $10.5 and $5.25 respectively.

It is given to us that

f is the amount of money that Frank spent and

r is the amount of money that Rachel spent.

Frank and Rachel together spent a total of $15.75.

Rachel spends twice as compare to Frank

The equation that represents this situation:

1. f + r = $15.75

2. r = 2f

Substituting r = 2f in equation 1.

f + r = 15.75

f + 2f = 15.75

3f = 15.75

f = 5.25

Substituting f = 5.25 in equation 2.

r = 2f

r = 2(5.25)

r = 10.5

Thus, Rachel spends $10.5 and Frank spends $5.25.

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(15 points) Which fraction below represents a terminating decimal? A.3/8 B.2/3 C4/6. D.7/9

Answers

Hey there Smarty!

[tex]\boxed{what \ is \ a \ terminating \ decimal \ anyways?}[/tex]

A terminating decimal is a decimal that has a ending, not one that looks like this . . . . .

3.444444444444444^10

That above is not a terminating decimal. It does not end.

[tex]3/8 = \boxed{(0.375)} \ this \ is \ terminating \\ \\ 2/3= \ \boxed{0.6^-} \ \boxed{\boxed{\ this \ is \ not \ terminating}} \\ \\ 0.6 \ would \ be \ your \ answer![/tex]

There would be no need to check the other ones,we already found the answer.

Hope this helps you mate!

From the given fractions 3/8 is a terminating decimal.

What is a terminating decimal?

A decimal with an end digit is referred to as a terminating decimal. It is a decimal, which means that its digits are limited.

To solve the question,

Use options,

(A)

3/8

Divide 3 by 8, by mathematical property,

3.75

3.75 has an end digit which is 5,

Therefore, the given decimal is terminating decimal

In other option 2/3 and 4/6 gives repeating decimals 0.66666, similarly 7/9 is a repetitive decimal.

Hence, 3/8 is a terminating decimal.

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A family charges a trip to the zoo on a credit card. The simple interest rate is 12%. The charges are paid after 3 months. What is the total amount paid for the trip? Round your answer to the nearest hundredth. tickets are 67.7, gas is 45.5, and food is 62.34

Answers

Unfortunately, you failed to include in here the amount that has to be paid by the family initially. However, as a general knowledge, the amount that has to be paid for a credit after n years in a simple interest can be calculated through the equation below,
F = P + Prn
where P is the initial value, r is the decimal equivalent of the given rate and n is the number of years. If the given simple interest rate is yearly then, the equation would become,
F = P x (1 + (0.12)(3/12)) = 1.03P

Maggie and her friend visit a beach that has a shoreline 2 2/5 kilometers long. They walk along 2/3 of it. How many kilometers of the beach shoreline do they walk?

Answers

Simply put, this question is asking "What is 2/3 of 2 2/5 ?".

If we want to find 2/3 of 2 2/5, we can multiply the fractions together.

[tex] \frac{2}{3} * 2 \frac{2}{5} [/tex]

= [tex] \frac{24}{15} [/tex]

= [tex] \frac{8}{5} [/tex]

= [tex]1 \frac{3}{5} [/tex]

This means that Maggie and her friend have walked [tex] 1 \frac{3}{5} [/tex] kilometers of the beach shoreline.

Final answer:

To find out how many kilometers of the beach shoreline Maggie and her friend walk, we need to multiply the length of the shoreline by the fraction they walk along. Maggie and her friend walk 8/5 kilometers of the beach shoreline.

Explanation:

To find out how many kilometers of the beach shoreline Maggie and her friend walk, we need to multiply the length of the shoreline by the fraction they walk along.

First, we need to convert the mixed number 2 2/5 to an improper fraction. We can do this by multiplying the whole number (2) by the denominator (5) and adding the result to the numerator (2), then putting the new numerator over the denominator. So, 2 2/5 is equal to (2 * 5 + 2) / 5 = 12/5.

Next, we can multiply the length of the shoreline (2 2/5) by the fraction they walk along (2/3). Multiply the whole number and numerator separately, then add the products and put the result over the denominator.

So, (12/5) * (2/3) = (12 * 2) / (5 * 3) = 24/15 = 8/5.

Maggie and her friend walk 8/5 kilometers of the beach shoreline.

If you take a certain number 2.5 times then add 1.75 and divide the result by 0.8, you’ll get 37.5. What was the original number?

Answers

Answer:

The original number is 11.3

Step-by-step explanation:

Let the number is x and then we form the equation to solve it for the value of x.

1- Number is multiplied by 2.5 then it becomes = 2.5x

2- Then we add 1.75 to the expression then new expression will be = 2.5x + 1.75

3- We divide the result by 0.8 then expression will be = [tex]\frac{2.5x + 1.75}{0.8}[/tex]

4- Now the final expression is equal to 37.5 so the equation will be

[tex]\frac{2.5x + 1.75}{0.8}[/tex] = 37.5

Now we multiply 0.8 in both the sides of the equation

[tex]\frac{2.5x + 1.75}{0.8}[/tex]×0.8 = 37.5×0.8

2.5x + 1.75 = 30

2.5x = 30 - 1.75

2.5x = 28.25

x = 28.25/2.5 = 11.3

Answer:

11.3

Step-by-step explanation:

I need to hurry so I don't have enough time to write this down.

a rectangular room is 1.7 times as long as it is wide and it's perimeter is 31 meters. find the dimension of the room

Answers

the answer for your problem is 52.7

Write an expression that represents the difference of 32 and n, multiplied by 10

Answers

How about ...
.. (32 -n)*10

PLEASE HELP BRAINLIEST REWARDED

Lorraine writes the equation shown.

x^2 + y - 15 = 0

She wants to describe the equation using the term relation and the term function.

The equation represents:

A relation and a function
A relation but not a function
A function but not a relation
Neither a function or a relation

Answers

I think that it is a function but not a relation

A function is a special relation whose every input corresponds with a single output. To be a function, each input is allowed to pair with only one output element.

[tex] x^2+y-15=0\\ Adding \; 15 \; subtracting \; x^2\; on\; both\; sides\\ \\ y=-x^2+15 [/tex]

For a parabola equation like above, there is no restriction in the domain. For every x value there is a unique y value.

Conclusion:

The equation [tex] x^2+y-15=0 [/tex] is BOTH a function and a relation!

determine the area of the composite figure shown below

Answers

I divided the figure into two rectangles, found their areas separately and added them up to get the final area 168 cm squared.

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