Math 050 Prealgebra Practice Test 3 Worksheet With Answers - Rates, Ratios And Proportions - Operations On Fractional Expressions - 2007 Page 2
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7MATH 050
Practice Test 3
Page 2
4. Find the best buy (based on unit cost) for the following. Write A or B.
4. _______________
Goldfish:
A:
15 for $13.35
B:
25 for $19.75
For problems 5 & 6, translate each statement into a proportion.
5. 18 is to 8 as 45 is to 20
5. _______________
1
6. If a ferris wheel makes 1
revolutions in 4 minutes, it should make
6. _______________
4
5 revolutions in 16 minutes.
7. Determine if the statement is a proportion. Write yes or no.
7. _______________
15
12
=
7
5
8. Find the value of x in the proportion.
8. _______________
x
6
=
48
16
9. The ratio of a basketball player's completed free throws to attempted free
9. _______________
throws is 7 to 8. If she completed 28 free throws, find how many free throws
she attempted.
10. Multiply. Be sure your answer is simplified.
10. _______________
F
I
F
I
−
H G
K J
H G
K J
5
15
−
3
10
F
I
H G
K J
1
=
11. Find the area of a triangle with the given base and height.
A
bh
11. _______________
2
b = 30 ft and h = 5 ft
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