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3241004551 [841]
3 years ago
9

The office worker can stamp 25 letters per minute.

Mathematics
2 answers:
drek231 [11]3 years ago
6 0

For this case, we can solve the problem by using the following ratio:

\frac {25} {1} = \frac {x} {5}

Where,

x: number of letters in 5 minutes

Clearing the value of x we have:

x = 5 (\frac {25} {1})\\x = 5 * 25\\x = 125

Answer:

At that rate, the number of letters that the worker can stamp in 5 min is 125.

Option D.

sweet-ann [11.9K]3 years ago
5 0
You set it up into a fraction equation. 25 over 1 = x over 5. The numerator is the letters and the denominator is the minutes. You then cross multiply and then you get x=125. That is your answer. Hope that helps.
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John runs the same amount each day (r). If he runs for 4 days this week write an expression to represent the amount he ran this
AnnyKZ [126]

Answer:

r \cdot 4 = z

Step-by-step explanation:

An expression means that we don't know enough to create an equation. So, this means we will mostly be using variables.

John runs r amount every day. We need to create an expression for if he runs r amount for 4 days.

r \cdot 4 = z

r = how much he runs per day

4 = how many days he runs

z = how much he runs this week

This is your expression!

7 0
3 years ago
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You install 404 feet of fencing along the perimeter of a rectangular yard.
Gemiola [76]

Answer:

The length of the yard is 102

Step-by-step explanation:

If the width of the yard is 100 feet, and it's a rectangular, that means the other side of the rectangle is also equal to 100 feet. So so far we have 200 feet of the yard covered. Then we do 404-200=204. So the combined length of both the sides is 204. Since they both equal the same length, we can then do 204/2 to get 102. So one side length is 102 and the L, W, L, W of the rectangle is 102, 100, 102, 100. In other words, the rectangle is 102 by 100.

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What is 8/12 as a fraction as a product of a whole number and a unit fraction?
ZanzabumX [31]

Answer:

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Step-by-step explanation:

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3 years ago
If a postal worker can deliver the mail to 18 houses in 15 minutes, how many houses will the postal worker be able to deliver to
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Find the volume of a cone with a base radius of 3 cm and a height of 9 cm
katovenus [111]

The volume of a cone is 84.78 cm                

<u>Step-by-step explanation</u>:

<u>Given</u>:

radius = 3 cm and

height = 9 cm

<u>To Find</u>:

The Volume of a Cone

<u>Formula</u>:

The Formula for the volume of a cone is

V=πr2 *h/3

<u>Solution</u>:

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