Solve the problem.How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals.
A. 3.125 L
B. 4.688 L
C. 8 L
D. 9.375 L
Answer: D
Mathematics
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- 2
- 3
A. -9x
B. -5x
C. -5x
D. -9x
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Solve the problem.The length and width of a rectangle have a sum of 70. What dimensions give the maximum area?
A. Length 35 and width 35 B. Length 26 and width 44 C. Length 34 and width 36 D. Length 25 and width 45
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Find the probability.A bag contains 6 red marbles, 4 blue marbles, and 1 green marble. What is the probability of choosing a marble that is not blue when one marble is drawn from the bag?
A. 
B. 7
C. 
D. 
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Divide.
A. 
B. 
C. 
D. 
E. 
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