1. Marcus and Tony work for Lombardo\'s Pipe and Concrete. Mr. Lombardo is prepa

Question

1. Marcus and Tony work for Lombardo's Pipe and Concrete. Mr. Lombardo is preparing an estimate for a customer. He knows that Marco lays a slab of concrete in 6 hours. Tony lays the same size slab in 4 hours. If both work on the job and the cost of labor is $45.00 per hour, decide what the labor estimate should be.

2. A human factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class. Find the minimum floor space that 40 students need.

Explanation / Answer

marcos rate of work = 1/6

tonys rate of work = 1/4

if they work together

1/6 + 1/4 = (4 + 6 )/24

= 10/24

so they will finish the work together in 24/10 hours

cost of labour = $ 45 / hour

so, labour estimate = 45 * 24/10

= $ 108

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.