Mr. Malone used 40 pounds of insecticide to cover 1,760 square feet of lawn and 60 pounds to cover an additional 2,640 square feet. how many pounds of insecticide would Mr. Malone need to cover his whole lawn of 4,480 square feet?
Mathematics · High School · Tue Nov 03 2020
Answered on
Given the statement:
Mr. Malone used 40 pounds of insecticide to cover 1,760 square feet of lawn and 60 pounds to cover an additional 2,640 square feet.
Determine how many pounds of insecticide would Mr. Malone need to cover his whole lawn of 4,480 square feet.
Solution:
In order to find the answer, we must first find the unit rate in area per pound by dividing 1760 with 40.
= 1760 ft^2 / 40 lb
= 44 ft^2/lb
Now we divide 44 to 4480 in order to find the number of pounds needed.
= 4480 ft^2 / 44 ft^2/lb
= 101.81 lbs
Final answer:
= 101.81 lbs