Question

What is the constant of proportionality in miles per hour?

a.) 0.85 miles per hour
.85
b. 55 miles per hour
IS112.15
c. 60 miles per hour 4
120
d. 51 miles per hour
15
75
8

Answer 1

9514 1404 393

Answer:

(d) 51 miles per hour

Explanation:

The constant of proportionality can be found by dividing the distance by the time. It is convenient to choose a time that makes this division simple. We choose 30 min = 1/2 hour.

(25.5 mi)/(1/2 h) = 2(25.5) mi/h = 51 mi/h

The constant of proportionality is 51 miles per hour.