SOLUTION: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 45% salt and Solution B is 70% salt. She wan

Question 996176: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
45%
salt and Solution B is
70%
salt. She wants to obtain
180
ounces of a mixture that is
55%
salt. How many ounces of each solution should she use?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
45%
salt and Solution B is
70%
salt. She wants to obtain
180
ounces of a mixture that is
55%
salt. How many ounces of each solution should she use?
---------------
f = amount of 45%
s = amount of 70%
----
f + s = 180 (total solution)
45f + 70s = 55*180 (total salt)
----
Solve for f & s
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