Question

The minimum number of carpet rolls n needed to carpet a house varies directly as the house’s square footage h and inversely with the square footage r in one roll. It takes a minimum of two 1200-ft2 carpet rolls to cover 2300 ft^2 of floor. What is the minimum number of 1200-ft^2 carpet rolls you would need to cover 2500 ft^2 of floor? Round your answer up to the nearest half roll

Answer 1

(2 rolls / 2300 ft^2)(2500 ft^2)=2.17 rolls

2.5 rolls  (rounded up to the next half roll)