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gooberthebear8955
31.01.2020 •
Mathematics
Acoffee mixture has beans that sell for 0.20 a pound and beans that sell for 0.68. if 120 pounds of beans create a mixture worth 0.54 a pound, how much of each bean is used ? model the scenario then solve it. then, in two or more sentences explain whether your solution is or isn't reasonable.
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Ответ:
The coffee mixture has 35 pounds of coffee beans sold at $0.20 a pound and 85 pounds of coffee beans sold at $0.68 a pound. This is reasonable because if you add 35 and 85 it will give you 120 pounds.
Step-by-step explanation:
0.2x + 0.68(120 - x) = 0.54[x + (120 - x)]
0.2x + 81.6 - 0.68x = 0.54(120)
-0.48x + 81.6 = 64.8
-0.48x = 64.8 - 81.6
-0.48x = -16.8
/-0.48 /-0.48
x = 35
y = 120 - x
y = 120 - 35
y = 85
Ответ:
4
Step-by-step explanation: