Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?

Question

Mathematics

Marley Anderson

1 February, 18:16

Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?

+1

Answers (1)

Know the Answer?

Eliezer Hogan · Answer 1

Remember, (a/b) / (c/d) = (a/b) (d/c) = (ad) / (bc)

so

walls per gallon

4/5 wall per 5/8 gallon

(4/5) / (5/8)

(4/5) (8/5)

32/25

1.28

the unit rate is 1.28 walls per gallon