SOLUTION: the ratio petrol to oil is 25 to 1. how much oil would you use in 5l of petrol?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: the ratio petrol to oil is 25 to 1. how much oil would you use in 5l of petrol?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 490848: the ratio petrol to oil is 25 to 1. how much oil would you use in 5l of petrol?
Answer by ccs2011(207) About Me  (Show Source):
You can put this solution on YOUR website!
Set up a proportion:
Put petro amounts on top, oil amounts on bottom
--> 25%2F1+=+51%2Fx
Multiply both sides by x
--> 25x+=+51
--> x+=+51%2F25+=+2.04