Combined Variation
Quiz
•
Mathematics
•
9th - 11th Grade
•
Practice Problem
•
Hard
Barbara White
FREE Resource
Enhance your content in a minute
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If y varies directly with x and inversely with z, and y = 24 when x = 48 and z = 4, find x when y = 44 and z = 6.
126
132
148
154
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If f varies directly with g and inversely with the square of h, and f = 20 when g = 50 and h = 5, find f when g = 18 and h = 6.
4
5
8
10
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If y varies jointly with a and b and inversely with the square root of c, and y = 12 when a = 3, b = 2, and c = 64, find y when a = 5, b = 2, and c = 25.
8
16
24
32
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If x varies directly with y and inversely with z, and x = 10 when y = 5 and z = 3, for what value of z will x = 3 and y = 4?
2
4
6
8
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The number of minutes needed to solve an exercise set of variation problems varies directly with the number of problems and inversely with the number of people working on the solutions. It takes 4 people 36 minutes to solve 18 problems. How many minutes will it take 6 people to solve 42 problems.
56 minutes
52 minutes
48 minutes
44 minutes
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The time it takes you to complete a puzzle is directly proportional to the number of pieces and inversely proportional to how many people are working on it. You and your three friends can complete a 1,000 piece puzzle in 2 hours. How long would it take you to complete a 2,500 piece puzzle?
8 hours
9 hours
10 hours
11 hours
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