Question 912689
An electrician charges $15 plus $11 per hour. 
let number of hours be x

C= 15+11x


Another electrician charges $10 plus $15 per hour.

C= 10+15x

C should be same

so 15+11x=10+15x

4x=5

/4
x=5/4 days


 Use a system of equations to find out for how many hours the electricians would charge the same amount.