Question

4 bags of cement do 18 m² how many m^2 can be done with seven bags

Answer 1

31.5 m^2

Explanation:

To find the amount for 7 bags, create a proportion.

`(4)/(18) =(7)/(y)`

To solve for y, cross multiply numerator to denominator of each fraction.

4(y) = 18(7)

4y= 126

y= 31.5

7 bags will do 31.5 m^2