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March 26, 2015

March 26, 2015

Posted by **Delilah** on Monday, November 5, 2012 at 10:16pm.

15 : 3

6 : 6

5 : 1

2 :3

#2 Write the ratio in the simplest form.

96 : 12

1 : 8

48 : 6

32 : 4

8 : 1

#3 Solve the proportion.

x/3 = 4/6

x = 2

x = 4

x = 6

x = 8

#4 Solve the proportion.

2/y = 3/12

x = 2

x = 4

x = 6

x = 8

#5 Solve the proportion.

12/4 = x/9

x = 27

x = 3

x = 9

x = 29

#6 Find the unit rate for 255 miles in 10 hours.

0.0392 miles/hour

25.5 miles/hour

2550 miles/hour

#7 In 3 months 65.4 gallons of gas were used. Find the unit rate.

21.8 gallons/month

0.046 gallons/month

392.4 gallons/month

#8 The sides of a rectangle are increased by a scale factor of 3. The perimeter of the smaller rectangle is 15 in. What is the perimeter of the larger rectangle?

5 in.

45 in.

35 in.

15 in.

#9 The width of a picture is 30 in. Using a copy machine, you reduce the width of the picture to 2 cm. What is the scale factor of the dilation?

1 / 2

1 / 3

1 / 10

1 / 15

My answers:

1. 5:1

2. 8:1

3. x = 2

4. x = 8

5. x = 27

6. 25.5 miles/hour

7. 0.046 gallons/month

8. 45 in.

9. 1/15

- 7th grade math Ms. Sue please check -
**Ms. Sue**, Monday, November 5, 2012 at 10:22pm7. is wrong.

8. I don't know.

9. I think there's an error in your problem.

The other answers are right.

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