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Transcript
```Name
7-1
Class
Date
Practice
Form G
Ratios and Proportions
Write the ratio of the first measurement to the second measurement.
1. diameter of a salad plate: 8 in.
diameter of a dinner plate: 1 ft
2. garden container width: 2 ft 6 in.
garden container length: 8 ft
3. width of a canoe: 28 in.
length of a canoe: 12 ft 6 in.
4. height of a book: 11 in.
height of a bookshelf: 3 ft 3 in.
6. The perimeter of a rectangle is 280 cm. The ratio of the width to the length is 3 : 4.
What is the length of the rectangle?
7. The ratio of country albums to jazz albums in a music collection is 2 : 3. If the
music collection has 45 albums, how many are country albums?
8. The lengths of the sides of a triangle are in the extended ratio 3 : 6 : 8. The
triangle’s perimeter is 510 cm. What are the lengths of the sides?
Algebra Solve each proportion.
x
16
x 13

9. 
10.
2 x  1 40
4 52
12.
2 b 1

7
56
13.
11 9

y 27
11.
9 9x

10 70
14.
3 m

34 51
x 6
Use the proportion z  5 . Complete each statement. Justify your answer.
15.
x

6
17.
z

x
18. 5x 
Name ____________________________________ Class _____________ Date ____________
7-1
Practice (continued)
Form G
Ratios and Proportions
Coordinate Geometry Use the graph. Write each ratio in simplest form.
20.
AB
BD
21.
AE
EC
22.
EC
BC
23.
slopeof BE
slopeof AE
24. A band director needs to purchase new
uniforms. The ratio of small to medium to
large uniforms is 3 : 4 : 6.
a. If there are 260 total uniforms to purchase,
how many will be small?
b. How many of these uniforms will be medium?
c. How many of these uniforms will be large?
25. The measures of two complementary angles are in the ratio 2 : 3. What is the measure
of the smaller angle?
26. The measures of two supplementary angles are in the ratio 4 : 11. What is the
measure of the larger angle?
Algebra Solve each proportion.
29.
( x  1) 10

( x  1) 14
30.
7
x

50 30
31. The ratio of the interior angles of a triangle is 7: 11 : 12. Find the angles.
```
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