Let x be the amount of whole-wheat flour in the mixture.

Question

To make bread, Maya uses a flour mixture that combines organic whole-wheat flour that costs $1.60 per pound with unbleached flour that costs $0.50 per pound. Ten pounds of her mixture costs $1.20 per pound. Let x be the amount of whole-wheat flour in the mixture.

 

 

 

Answer 1

1.60*X + 0.50*(10-x) = 12

 

1.6 X + 5 - 0.5 X = 12

 

1.1X = 7

 

X = 7 / 1.1 = 70/11 = 6 and 4/11 = 6.36

 

The other shall be 3.64