SOLUTION: Write a proportion for the following problem and solve it. A bag of 52 kg of wheat costs $169. What would 21 kg of wheat cost? Thank you!

Algebra ->  Proportions -> SOLUTION: Write a proportion for the following problem and solve it. A bag of 52 kg of wheat costs $169. What would 21 kg of wheat cost? Thank you!      Log On


   

Question 1133632: Write a proportion for the following problem and solve it.
A bag of 52 kg of wheat costs $169. What would 21 kg of wheat cost?

Thank you!
Found 2 solutions by MathLover1, addingup:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

52%2F169=+21%2Fx
52x=+21%2A169
x=+3549%2F52
x=+68.25

21kg of wheat would cost $+68.25

Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
52 = 169
21 = x
cross multiply:
21*169 = 52x
3549 = 52x
now solve for x:
x = 3549/52 = 69.25