Question

A store owner wishes to make a new tea with a unique flavor by mixing black tea and oolong tea. If he has 35 pounds of oolong tea that sells for 2. 40 per pound, how much black tea worth 1. 80 per pound must he mix with it so that he can sell the final mixture for 2. 10 per pound

Answer 1

35 pounds of black tea

Explanation:

35(2.40) + 1.80x = 2.10(35 + x)

84 + 1.8x = 73.5 + 2.10x Subtract 1.8 from both sides

84 = 73.5 + .3x Subtract 73.5 from both sides

10.5 = .3x Divide both sides by .3

35 = x

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