Question

Brandi traveled 140 miles on the interstate for 2 hours. What was her constantrate? (How fast was she driving in miles per hour?)A. 65 mphB. 70 mphC. 0.014 mphD. 280 mph

Answer 1

The rate traveled is calculated using the formula:

$R=\frac{distance}{time}$

From the question, w have the following parameters:

$\begin{gathered} distance=140\text{ }miles \\ time=2\text{ }hours \end{gathered}$

Therefore, the rate is calculated to be:

$\begin{gathered} R=\frac{140}{2} \\ R=70\text{ miles per hour} \end{gathered}$

The correct option is OPTION B.