Question

1. a car travels 220 miles in 4 hours. what is the constant of proportionality that relates y, the total number of miles, to x, the number of hours? k = __________

Explanation:

Step1: Recall the formula for constant of proportionality

For a proportional relationship $y = kx$, $k=\frac{y}{x}$.

Step2: Identify values of y and x

Here, $y = 220$ miles and $x = 4$ hours.

Step3: Calculate k

$k=\frac{220}{4}=55$.

Answer:

55