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Understanding Ratios and Proportions

Understanding Ratios and Proportions

Assessment

Interactive Video

•

Mathematics

•

6th - 7th Grade

•

Practice Problem

•

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers solving problems involving ratios and proportions. It begins with a basic example using cats and dogs to explain ratios and fractions. The tutorial then progresses to more complex problems, including calculating the ratio of boys to girls in a class, determining how many cakes can be made in a given time, finding the width of a rectangle using ratios, and calculating the number of nickels in a jar. Each problem is solved step-by-step, demonstrating the use of cross-multiplication and simplification techniques.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified ratio of cats to dogs on the island?

4:5

5:4

2:3

3:2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving a ratio problem involving cats and dogs?

Subtract the numbers

Multiply the numbers

Set up a fraction

Add the numbers

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the ratio of boys to girls is 8:7 and there are 40 boys, how many girls are there?

45

40

35

30

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the boys to girls ratio problem, what operation is used to solve the proportion?

Cross-multiplication

Subtraction

Division

Addition

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many cakes can Karen make in 15 hours if she makes 14 cakes in 6 hours?

45

40

35

30

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ratio of cakes to hours in Karen's problem?

14:6

3:7

6:14

7:3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the width of the large rectangle if the small rectangle is 9 inches by 8 inches and the large rectangle's length is 24 inches?

18 inches

21.3 inches

24 inches

27 inches

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