Question

The cost of a can ride , y, based on the number of miles driven , x, is represented by

y = 0.80x + 2.50

Part A: How expensive is a 7-mile ride ?

Part B: How many miles did you travel if the ride cost $13.70 ?​

Answer 1

Explanation:

y = 0.80x + 2.50

a 7 mile ride......x = 7

y = 0.80(7) + 2.50

y = 5.60 + 2.50

y = 8.10 <=== the 7 mile ride cost $ 8.10

the ride cost 13.70.....y = 13.70

13.70 = 0.80x + 2.50

13.70 - 2.50 = 0.80x

11.2 = 0.80x

11.2 / 0.80 = x

14 = x <=== u travel 14 miles