Math

Answers to Assignment

1. Let x = minutes used by Cindy in the whole month of July

.20 x = .40

x = .40 / .20

x = 72 minutes

2. Let x = be the time that the trip had took

62 miles / hour = 149 miles / x

62 miles / hour (x) = 149 miles

x = 149 miles / 62 miles / hour

x = 2.40 hours

3. Let x = be the number of servings

3.25 (1.25) + 8.75 (2) = 3x

4.0625 + 17.5 = 3x

21.5625 = 3x

x = 7.1875

or ≈ 7 servings / people

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