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人気のある Word Problems >

A car travels 30 1/5 miles in 2/(3) of an hour. What is the 平均 speed, in miles per hour, of the car?

解

A c a r t r a v e l s 30 \frac{1}{5} mi l es in \frac{2}{3} o f an h o u r . Wha t i s t h e a v er a g e s p ee d, in mi l es p er h o u r, o f t h e c a r ?

解

speed : 45.3

解答ステップ

Translate the problem into an equation:

\frac{151}{5} = x \frac{2}{3}

x

を解く

\frac{151}{5} = x \frac{2}{3} : x = \frac{453}{10}

簡素化

speed : 45.3

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