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2 years ago

Aya and Mary are 12 miles apart on a path when they start moving toward each other.

Mathematics

1 answer:

Ostrovityanka [42]2 years ago

5 0

Answer:

1.5 hours

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Aya and Mary distance = 12 miles

Let, meeting point from Aya = Z miles

So, Aya covers Z miles to reach Mary.

Hence, Mary covers (12 - Z ) miles to reach Aya

Here, Time = $\frac{Distance}{Speed}$

Aya = $\frac{Z}{5}$

Mary = $\frac{12-Z}{3}$

If, same time taken, then we can solve by following method,

$\frac{Z}{5} = \frac{12-Z}{3}$

By solving the equation, we get

Z = 60 ÷ 8

Or Z = 7.5 miles

Hence, time taken for both to meet = 7.5 ÷ 5

= 1.5 hours

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(a)

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(b)

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(c)

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Step-by-step explanation:

(a)

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we get

$-5^{-3}=-\frac{1}{5^3}$

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$-5^{-3}=-\frac{1}{125}$ ........Answer

(c)

$(-5^{-3})^{-1}$

we can use property of exponent

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we get

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(d)

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3 years ago

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3 years ago

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2 years ago

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