# Lesson 1

Introducing Ratios and Ratio Language

### Problem 1

In a fruit basket there are 9 bananas, 4 apples, and 3 plums.

1. The ratio of bananas to apples is ________  ________.
2. The ratio of plums to apples is ________ to ________.
3. For every ________ apples, there are ________ plums.
4. For every 3 bananas there is one ________.

### Solution

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### Problem 2

Complete the sentences to describe this picture.

1. The ratio of dogs to cats is ________.
2. For every ________ dogs, there are ________ cats.

### Solution

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### Problem 3

Write two different sentences that use ratios to describe the number of eyes and legs in this picture.

### Solution

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### Problem 4

Choose an appropriate unit of measurement for each quantity.

1. area of a rectangle
2. volume of a prism
3. side of a square
4. area of a square
5. volume of a cube
• cm
• cm3
• cm2

### Solution

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(From Unit 1, Lesson 17.)

### Problem 5

Find the volume and surface area of each prism.

1. Prism A: 3 cm by 3 cm by 3 cm

2. Prism B: 5 cm by 5 cm by 1 cm

3. Compare the volumes of the prisms and then their surface areas. Does the prism with the greater volume also have the greater surface area?

### Solution

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(From Unit 1, Lesson 16.)

### Problem 6

Which figure is a triangular prism? Select all that apply.

A:

A

B:

B

C:

C

D:

D

E:

E

### Solution

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(From Unit 1, Lesson 13.)