11. If 16% less than a certain quantity is 441, find the quantity.Ans. 52512. How many gallons of 85% solution of Ethyl Alcohol should be added to 30 gallons of 50%solution to produce 64% solution of the alcohol?Ans. 20 gallons13. How many liters of a 40% solution and how many liters of a 90% solution of Nitric Acid shouldbe combined to produce 50 liters of 56% solution of the acid?

11. Let the certain quantity be x From the given statement x-16% of x=441

Answered: 11. If 16% less than a certain quantity…

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11. If 16% less than a certain quantity is 441, find the quantity. Ans. 525

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter8: Rational Expressions And Equations

Section8.7: Solve Proportion And Similar Figure Applications

Problem 8.149TI: Pediatricians prescribe 5 milliliters (ml) of acetaminophen for every 25 pounds of a child’s weight....

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Question

11. If 16% less than a certain quantity is 441, find the quantity.
Ans. 525
12. How many gallons of 85% solution of Ethyl Alcohol should be added to 30 gallons of 50%
solution to produce 64% solution of the alcohol?
Ans. 20 gallons
13. How many liters of a 40% solution and how many liters of a 90% solution of Nitric Acid should
be combined to produce 50 liters of 56% solution of the acid?

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