SOLUTION: Pepperidge Farm Goldfish is a snack food for which 40% of its calories come from fat. Rold Gold Pretzels recieve 9% of their calories from fat. How many grams of each would be need
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Question 190222This question is from textbook
: Pepperidge Farm Goldfish is a snack food for which 40% of its calories come from fat. Rold Gold Pretzels recieve 9% of their calories from fat. How many grams of each would be needed to make 620g of a snack mix for which 15% of the calories are from fat? This question is from textbook
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Let x = grams of goldfish
the
620-x = grams of roll gold
.
.40x + .09(620-x) = .15(620)
.40x + 55.8 - .09x = 93
.40x + 55.8 - .09x = 93
.31x + 55.8 = 93
.31x = 37.2
x = 120 grams of goldfish
.
roll gold:
620-x = 620-120 = 500 grams of roll gold
