A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is
55% salt and Solution B is 80% salt. She wants to obtain 180 ounces of a mixture that is 75% salt. How many ounces of each solution should she use?
1 answer:
36 ounces of solution A
144 ounces of solution B
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Step-by-step explanation:
Answer:
4x^2 -5x -2
Step-by-step explanation:
= 5x^2 -3x -7 -x^2 -2x +5
= (5 -1)x^2 +(-3 -2)x +(-7 +5)
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