You and your friend rent a kayak. It costs $40 for the fi rst 4 hours and $7.50 for each extra hour. Your total cost is $62.50. Write and solve an equation to fi nd the number of extra hours you rented the kayak.

Mathematics · Middle School · Thu Feb 04 2021

Answered on

Given: 

Cost of first 4 hours = $40

Total cost = $62.50

Cost of extra hours (per hour) = $7.50

 

Thus, Total cost of extra hours = $62.50 -$40

=$22.50

 

Number of hours = $22.50/$7.50

= 3 hours

 

Thus, number of extra hours is 3 hours