7 - 5.3 Activity Question Preview (ID: 58147)


Writing Proportions.

Write a proportion to find how many points a student needs to earn on the test to get the given score. Test worth 70 points; test score of 90%
a) x/70 = 90/100
b) 70/x = 90/100
c) x/70 = 100/90
d) x/100 = 70/90

Write a proportion to find how many points a student needs to earn on the test to get the given score. Test worth 30 points; test score of 72%
a) x/100 = 30/72
b) x/30 = 72/100
c) x/30 = 100/72
d) 30/x = 72/100

Write a proportion to find how many points a student needs to earn on the test to get the given score. Test worth 50 points; test score of 40%
a) 50/x = 40/100
b) x/100 = 50 / 40
c) x/50 = 40/100
d) x/50 = 100/40

Write a proportion to find how many points a student needs to earn on the test to get the given score. Test worth 50 points; test score of 78%
a) x/50 = 100/78
b) 50/x = 78/100
c) x/100 = 50/78
d) x/50 = 78/100

Write a proportion to find how many free throws a player needs to get the given score. 15 free-throw attempts; free-throw score of 60%
a) x/15 = 60/100
b) x/15 = 100/60
c) 15/x = 60/100
d) x/100 = 15/60

Write a proportion to find how many free throws a player needs to get the given score. 24 free-throw attempts; free-throw score of 75%
a) x/100 = 24/75
b) x/24 = 75/100
c) x/24 = 100/75
d) 24/x = 75/100

You can buy 3 T-shirts for $24. Write a proportion that gives the cost c of buying 7 T-shirts.
a) 24/3 = 7/c
b) 3/c = 24/7
c) 3/24 = 7/c
d) 3/24 = c/7

A school requires 2 computers for every 5 students. Write a proportion that gives the number c of computers needed for 145 students.
a) 2/5 = 145/c
b) 5/2 = c/145
c) 2/c = 145/5
d) 2/5 = c/145

Solve the proportion. 2/3 = a/15
a) a = 10
b) a = 2
c) a = 5
d) a = 12

Solve the proportion. 4/7 = 44/m
a) m = 18
b) m = 77
c) m = 11
d) m = 47

Solve the proportion. d/6 = 72/48
a) d = 64
b) d = 7
c) d = 9
d) d = 8

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