Question

Together, Raquel and Miray can spread the mulch through the yard in 2 hours. Raquel would take 0.8 times as many hours as Miray would take to spread the mulch alone.
How long would it take Miray to spread the much alone?

Answer 1

Using the together rate, it is found that it would take Miray 4.5 hours to spread the mulch alone.

What is the together rate?

The together rate is the sum of each separate rate.

For this problem, the rates are given as follows:

• Together: 1/2.

• Miray: 1/x, in which x is the time it would take her to spread the mulch alone.

• Raquel: 1/0.8x.

Hence, applying the together rate, we have that:

$\frac{1}{x} + \frac{1}{0.8x} = \frac{1}{2}$

$\frac{1 + 1.25}{x} = \frac{1}{2}$

$\frac{2.25}{x} = \frac{1}{2}$

Applying cross multiplication:

x = 2 x 2.25

x = 4.5.

It would take Miray 4.5 hours to spread the mulch alone.

More can be learned about the together rate at brainly.com/question/25159431

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