Chat with AIExam 7: Rational Expressions
Exam 1: The Basics329 Questions
Exam 2: Linear Equations and Inequalities310 Questions
Exam 3: Linear Equations and Inequalities in Two Variables155 Questions
Exam 4: Systems of Linear Equations135 Questions
Exam 5: Exponents and Polynomials300 Questions
Exam 6: Factoring295 Questions
Exam 7: Rational Expressions302 Questions
Exam 8: Roots and Radicals215 Questions
Exam 9: Quadratic Equations212 Questions
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A sink can be filled by the cold water faucet in 6 minutes. The drain can empty a full sink in 8 minutes. If the sink is empty and both the cold water faucet and the drain are open, how long will it take the sink to overflow?
(Multiple Choice)
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(81)
(81) 
Reduce the following rational expression to lowest terms, if possible. 
(Multiple Choice)
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(81) An economy car travels 234 miles on 4.5 gallons of gas. Give the average fuel consumption of the car in miles per gallon. __________ miles \ gallon
(Short Answer)
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(76) 
x = __________
An airplane flying against the wind travels 210 miles in the same amount of time it would take the same plane to travel 230 miles with the wind. If the wind speed is a constant 20 miles per hour, how fast would the plane travel in still air?
(Multiple Choice)
4.8/5 (90)
(90) 
Perform the indicated operation. Reduce your answer to lowest terms. 
(Essay)
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(75) 
Solve the following equation. Be sure to check each answer in the original equation if you multiply both sides by an expression that contains the variable. 
(Multiple Choice)
4.8/5 (93)
(93) If 
varies directly with 
and if 
when 
find 
when 
is 15. 
= __________
varies directly with and if when find when is 15. = __________ (Short Answer)
4.9/5 (85)
(85) A solution contains 12 milliliters of alcohol and 16 milliliters of water. If another solution is to have the same concentration of alcohol in water but is to contain 32 milliliters of water, how much alcohol must it contain?
(Multiple Choice)
4.9/5 (75)
(75) 
Solve the following equation. If impossible, answer no solution . Be sure to check each answer in the original equation if you multiply both sides by an expression that contains the variable. 
x = __________
x = __________ (Essay)
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(88) Solve the following equation. Be sure to check each answer in the original equation if you multiply both sides by an expression that contains the variable. 
(Multiple Choice)
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(92) The weight F of a body varies inversely with the square of the distance d between the body and the center of the Earth. If a man weighs 150 pounds 4,000 miles from the center of the Earth, how much will he weigh at a distance of 5,000 miles from the center of the Earth? F = __________ pounds
(Short Answer)
4.9/5 (90)
(90) A basketball player makes 4 of 6 free throws in the first game of the season. If she shoots with the same accuracy in the second game, how many of the 12 free throws she attempts will she make? __________ free throws made
(Short Answer)
4.7/5 (92)
(92) 
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