Question

4 bags of cement do 18m squared how many metre squared can be done with 7 bags

Answer 1

4=18
7=x
these ar ratios
4:18=7:x
fractiofy
4/18=7/x
mutply both sides by x
4x/18=7
mulitply bothsides by 18
4x=126
divide both sides by 4
x=31.5

answer is 31.5 m^2

Answer 2

18 divided by 4= 4.5 meters squared
4.5 multiplied by 7= 31.5 meters squared