SOLUTION: Chemicals A,B, and C cost .60, .40, and .80 per gram, respectively. They are mixed so that the number of grams of B is twice the number of grams of A and B is twice the number of

Question 944809: Chemicals A,B, and C cost .60, .40, and .80 per gram, respectively. They are mixed so that the number of grams of B is twice the number of grams of A and B is twice the number of grams of A and is 3 less than the number of grams of C. The mixture is worth $11.40. How many grams of each chemical should be used?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The ratios of A, B, and C need to be made clear through symbolism.

Using A, B, C, for their corresponding quantities,

Try to account for the cost of the mixture.

Recheck the system of the ratios among A, B, and C. The system can be rearranged to show the quantities as functions of B.
.
Substitute these for A and C in the cost equation and have an equation in just the one variable, B.

....
You do that.
Can you finish?
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