Question

3. Melissa knows that 30 miles per hour is equivalent to

Answer 1

Answer:

$7 0 miles/hour = 103 feet/second$

Step-by-step explanation:

Given

$30 miles/hour = 44 feet/second$

Required

Determine the equivalent of 70 miles per hour

$30 miles/hour = 44 feet/second$

Multiply both sides by 7/3

$\frac{7}{3} * 30 miles/hour = \frac{7}{3} * 44 feet/second$

$7 * 10 miles/hour = \frac{7}{3} * 44 feet/second$

$7 0 miles/hour = \frac{7}{3} * 44 feet/second$

$7 0 miles/hour = \frac{308}{3} feet/second$

$7 0 miles/hour = 102.67 feet/second$

$7 0 miles/hour = 103 feet/second$ (Approximated)