4 years ago

A car travels 35 mph for r+2 hours,how far does it travel

1 answer:

3 0

Recall d = rt, distance = rate * time.

$\bf d=rt\qquad 
\begin{cases}
r=\stackrel{mph}{35}\\
t=\stackrel{hours}{r+2}
\end{cases}\implies d=35(r+2)\implies d=35r+70$

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