Solve the problem.A chemist needs 50 milliliters of a 39% solution but has only 37% and 42% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 10 mL of 37%; 40 mL of 42%
B. 20 mL of 37%; 30 mL of 42%
C. 30 mL of 37%; 20 mL of 42%
D. 40 mL of 37%; 10 mL of 42%
Answer: C
Mathematics
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Mathematics