Question

Mark ruffalos demolition service charges 8 dollars per hour Chris hems demolition service charges 6 dollars per hour and a 180 dollar service call fee after how many hours of demolition would the cost be the same at both companies

Answer 1

Answer: at 90 hours both companies charge the same amount

Explanation:

set up the linear equations for both company costs

M(t) = 8t

C(t) = 6t + 180

Find their intersection

8t = 6t +180

2t = 180

t = 90 hours