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GUIDED PRACTICE
1. Vocabulary What does it mean when two ratios form a proportion?
S E E EXAMPL E 1
p. 114
2. The ratio of the sale price of a jacket to the original price is 3 : 4. The original price is
$64. What is the sale price?
3. Chemistry The ratio of hydrogen atoms to oxygen atoms in water is 2 : 1. If an
amount of water contains 341 trillion atoms of oxygen, how many hydrogen atoms
are there?
S E E EXAMPL E 2
p. 114
Find each unit rate.
4. A computer’s fan rotates 2000 times in 40 seconds.
5. Twelve cows produce 224,988 pounds of milk.
6. A yellow jacket can fly 4.5 meters in 9 seconds.
S E E EXAMPL E 3
p. 115
7. Lydia wrote 4 _ 1_ 2 pages of her science report in one hour. What was her writing rate in
pages per minute?
8. A model airplane flies 18 feet in 2 seconds. What is the airplane’s speed in miles per
hour? Round your answer to the nearest hundredth.
9. A vehicle uses 1 tablespoon of gasoline to drive 125 yards. How many miles can the
vehicle travel per gallon? Round your answer to the nearest mile. (Hint: There are
256 tablespoons in a gallon.)
S E E EXAMPL E 4
p. 116
Solve each proportion.
10. _3z = _ 1
8
11. _ x
3
= _ 1
5
12. _ b
4
= _ 3
2
13.
f + 3
_
12
= _ 7
2
14. _ -1
5
= _ 3
2d
15. _ 3
14
= _s - 2
21
16. _-4
9
= _ 7x 17. _3
s - 2
= _ 1
7
18. _ 10
h
= _


Holy s**t. Fail. You can't do much with copy and paste.
I was going to show you this bullshit I have to do for Advance Algebra. Gay