X:y=5:3 and x+y=56 work out the value of x-y TTTTEEEELLLLLLLL MMMMEEEE!!!!!!!!!!!!!!!!
alexanderbrannagan
Asked:
December 2022
Bob the builder is making 480kg of concrete mix. Concrete is made by mixing cement, sand and gravel in the ratio 1 : 3 : 4 How much sand does he need? SAND=.........? CEMENT......? GRAVEL.....?