Multiplying and Dividing Rational Expressions Answers
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A chemist has 200 mL of a 10% sucrose solution. If she adds x milliliters of a 40% sucrose solution, what is the percent concentration of the final mixture?Which expression represents the total mass, in grams, of sucrose in the final mixture?
A
200 + xB
0.1x + 0.4(200)C
0.1(200) + 0.4xD
(0.1 + 0.4)(200 + x)2
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If the three hoses are used to start filling the pool at 10 a.m. on Tuesday, when will the pool be completely filled?
A
8 p.m. on TuesdayB
10 p.m. on TuesdayC
4 a.m. on WednesdayD
6 a.m. on Wednesday3
Which rational function represents this situation?
A
y = 19.8xB
y = 19.8/xC
y = 19,800xD
y = 19,800/xDid you find these answers helpful?
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