Problema Solution
Brittany and Monay work for a concrete company and their boss needs an estimate for a customer. The boss knows that Brittany lays a slab of concrete in 3 hrs. Monay lays the same slab in 5 hrs. If both work on the job, and the cost of labor is $40 per hour, decide what the labor estimate would be.
Answer provided by our tutors
first we will find the number of hours 'x' that Brittany and Monay need to finish the job together
1/3 + 1/5 = 1/x
by solving we find:
x = 1.875 hr
click here to see the step by step solution of the equation:
the cost of labor is $40 per hour means that the estimate for 1.875 hr is 1.875*40 = $75.