Question

Suppose you travel at 70 mph for 420 miles. How many hours will it take you to reach your destination?
A) 6.0 hours
B) 6.5 hours
C) 5.4 hours
D) 5.3 hours
@thesmartone

Answer 1

\(\sf\Large\frac{420}{70}=?\)

Answer 2

70 mph
70 miles per hour
so in 1hr, you travel 70 miles

how long is it for 420 miles?

well \(\large {
\begin{array}{ccllll}
miles&hrs
\\\hline\\
70&1\\
420&x
\end{array}\implies \cfrac{70}{420}=\cfrac{1}{x}
}\)
solve for "x"

Answer 3

@thesmartone 6?

Answer 4

Correct :)