SOLUTION: cement,sand and stone are mixed in the ratio of 1:5/2:5 in a mixture by volume .how many cubic metre of each of the three materiasls will be needed to make a total volume of 51

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: cement,sand and stone are mixed in the ratio of 1:5/2:5 in a mixture by volume .how many cubic metre of each of the three materiasls will be needed to make a total volume of 51       Log On


   

Question 945623: cement,sand and stone are mixed in the ratio of 1:5/2:5 in a mixture by volume .how many cubic metre of each of the three materiasls will be needed to make a total volume of 51 cubic metre of mixtre ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
X%2B%285%2F2%29X%2B5X=51
%282%2F2%29X%2B%285%2F2%29X%2B%2810%2F2%29X=51
%2817%2F2%29X=51
X=51%282%2F17%29
X=3%282%29
X=6
So then,
Cement : X=6+m%5E3
Sand : %285%2F2%29X=%285%2F2%296=15+m%5E3
Stone : 5X=5%286%29=30+m%5E3