Download presentation

Presentation is loading. Please wait.

Published byDaniella Cox Modified over 8 years ago

1
Ratio, Rate, Proportion, and Percent

2
Ratio Comparison of two numbers by division Can be written three different ways 4 to 9 4 : 9 4 9

3
Rate A ratio that compares two quantities measured in different units. 120 miles 3 hours

4
Unit Rate A rate with a denominator of 1. If 120 miles, then the unit rate is 40 Miles 3 Hours 1 Hour When you want to find unit rate you divide

5
Proportion Two equal ratios. 2 = 4 3 6

6
Solving Proportions Cross Multiply then Divide 7 = 14 4 n 14 4 = 56 56 ÷ 7 = 8 N = 8

7
Are these True Proportions? 8 = 12 12 8 Check the cross products 8 8 = 64 12 12 = 144 64 does not equal 144, therefore the proportions are not equal

8
Is the proportion true? 2 = 5 10 25 Check the cross products 10 5 = 50 2 25 = 50 The proportion is true!

9
Percent A ratio that compares a number to 100. 50 is 50% 100

Similar presentations

© 2023 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google