Question

Topsoil A 40-pound bag of topsoil will cover a surface area of 12 ft2.
a) How many pounds of topsoil are needed to cover a surface area of 480 ft2 ?

b) How many bag of topsoil must be purchased to cover a surface area of 480 ft2 ?

Answer 1

a. 1,600 pounds, because you need 40 bags of topsoil which weigh 30 pounds each and 40*40 is 1,600.
b. you need 40 bags because 480/12 is 40

Answer 2

thanks for describing how u got the answer

Answer 3

find out how many bags are needed fo 480 ft^2

Bags = 480/12

then multiply the answer by 40 since each bag weights 40 lbs

(b) you calculated this answer in (a)

Answer 4

thanks @campbell_st