AnswersAZ-Intermediate Algebra A MA311Solving Linear Equations: Distributive Property

Solving Linear Equations: Distributive Property Answers

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Eli wants to combine 0.5 gallon of a 10% acid solution with some 35% acid solution to make a 15% acid solution. | Which equation can you use to determine how many gallons of the 35% acid solution Eli should add?

A
(0.10)(0.5) + 0.35g = 0.15(g+ 0.5)
B
(0.10)(0.5) + 0.35g = (g + 0.5) + 0.15
C
(g + 0.5) + 0.15 = 0.15(g + 0.5)
D
(0.10)(0.5)(0.35g) = 0.15(g + 0.5)
2
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gallon

Answer:

0.125

3

Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a 15% alcohol solution.Which equation can Bruce use to determine how much of the 10% alcohol solution he should use?

A
0.10x + 0.15(50 – x) = 50 + 0.12
B
0.10x + 0.15(50 – x) = 0.12(50)
C
0.10x + 0.15(50 – x) = 50 + 0.12 + 0.12(50)
D
(0.10x)(0.15)(50 – x) = 0.12(50)
4

mL

Answer:

30

5

mL

Answer:

20

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