Question

it takes a car 1.75 h to go from mile marker 10 to mile marker 115. what is the average speed of the car? 1.6 mph 60 mph 65 mph 183 mph

Explanation:

Step1: Calculate the distance

The distance \(d\) is \(115 - 10=105\) miles.

Step2: Use the average - speed formula

The formula for average speed \(v=\frac{d}{t}\), where \(t = 1.75\) h and \(d = 105\) miles.
Substitute the values: \(v=\frac{105}{1.75}\)

$$v=\frac{105}{\frac{7}{4}}=105\times\frac{4}{7} = 60$$

mph.

Answer:

B. 60 mph