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3 years ago

8

A marathon race participant walks at a rate of 2.5 miles per hour and runs at a rate of 5 miles per hour. The combined distance

that the marathon race participant walks and runs is 12.5 miles. Write a linear equation in standard form that models this situation.

1 answer:

valentinak56 [21]3 years ago

3 0

Answer:

2.5x + 5y = 12.5

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

An exponent outside parentheses applies to each factor inside parentheses. Anything (except 0) to the 0 power is 1. Identical numerator and denominator factors cancel in the usual way.

$\left(\dfrac{7\cdot 5\cdot 2}{7\cdot 3}\right)^2\left(\dfrac{5^0}{2^{-3}}\right)^3\cdot 2^{-9}=\dfrac{10^2}{3^2}\cdot\dfrac{2^{-9}}{2^{-9}}\\\\=\dfrac{100}{9}$

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