Derek applies grass seed to 2/5 acre in 3/4 hour. How many acres can Derek cover per hour?

Answers

Answer 1

Answer:

The area that can be covered with grass seed by Derek is 8/15 acres.

Time spent while applying grass seed to 2/5 acre = 3/4 hour

Or, 3/4 hour is needed to apply grass seed to 2/5 acre.

What is a unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

3/4 hour ≡ 2/5 acre

1-hour ≡ (2/5)/(3/4) acre

1-hour ≡ $(2)/(5) *(4)/(3)$

1-hour ≡ $(8)/(15)$ acre

So, Derek can cover $(8)/(15)$ acre per hour.

Hence, the area that can be covered with grass seed by Derek is 8/15 acres.

To get more about the unitary method visit:

brainly.com/question/24587372

Answer 2

Answer: Number of acres / Time taken

(2/5) acre / (3/4) hour

= 2/5 × 4/3 = 8/15 acre / hour

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ilia earns $15 for each job he completes as a handyman alongside his uncle. he calculates his total job expenses for supplies to be $s. write an expression to show the amount of money ilia will have after 20 jobs.

Answers

If you are asking how much money would he have after 20 jobs while earning 15$ for each, here is the answer and explanation.

llia will have 300$ after 20 jobs. If he gets 15$ for each job then 1 is 15$, 2 is 30$, and so on. So we multiply 20 jobs x 15$ and that gives us 300$. I Hope this helps

If a is an integer, when is a/b always equal to an integer?