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3 years ago

BRAINLIEST HELP ME PLEASEEEEEE IM IN DANGER OF STAYING BACK:(((

Mathematics

1 answer:

Andrew [12]3 years ago

5 0

Answer:

24 ounces of solution B
16 ounces of solution A

Step-by-step explanation:

The largest contributor of salt to the mix is the 45% solution (B), so we'll let our variable (b) represent the quantity of that. The total amount desired is 40 ounces, so the quantity of solution A is (40-b) ounces. Then the amount of salt in the mix is ...

0.45b +0.20(40-b) = 0.35(40)

Simplifying and subtracting 0.20(40), we get ...

0.25b = 0.15(40)

b = 40(.15/.25) = 24

(40-b) = 16

The scientist should use 24 ounces of Solution B and 16 ounces of Solution A.

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