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liraira [26]
3 years ago
9

A scientist has two solutions, which she has labeled Solution A 60% and Solution B 75% Each contains salt. She knows that Soluti

on A is salt and Solution B is salt. She wants to obtain ounces of a mixture that is salt. How many ounces of each solution should she use
Mathematics
1 answer:
OverLord2011 [107]3 years ago
6 0

Answer:

The answer is "180".

Step-by-step explanation:

Please find the complete question in the attached file.

Let's

x = ounces solution of A

y = ounces solution of B

x + y = 180        \\\\y = 180 - x\\\\0.60x + 0.85y = 0.75(180)\\\\0.60x + 0.85y = 135\\\\

Multiply both sides of the equation by 100 to remove the decimal points.

60x + 85y = 13500\\\\60x + 85(180 - x) = 13500\\\\60x + 15300 - 85x = 13500\\\\-25x = -1800\\\\x = 72\ \ ounces\\\\y = 180 - 72 \\\\y = 108 \ \ ounces\\\\

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