Download presentation

Presentation is loading. Please wait.

Published byAmina Fields Modified over 2 years ago

1
Finding a Percent of a Number

2
To describe part of a group, we often use a fraction or a percent. Here are a few examples: Three fourths of the students voted for Leslie. Tim answered 80% of the questions correctly.

3
We also use percents to describe financial situations: Music CDs were on sale for 30% off the regular price. The sales-tax rate is 7%. The bank pays 3% interest on savings account.

4
When we are asked to find a certain percent of a number, we usually change the percent to either a fraction or a decimal before performing the calculation. 25% means 25/100 which reduces to ¼ 5% means 5/100 which reduces to 1/20

5
25% = 25/100 = 0.25 5% = 5/100 = 0.05

6
Write 15% in decimal form.

7
Write 75% as a reduced fraction.

8
We can translate this problem into an equation. What number is 75% of 20?

9
Jamaal correctly answered 80% of the 25 questions. How many questions did he answer correctly?

10
The sales-tax rate was 6%. Find the tax on a $12.00 purchase. Then find the total price including tax.

11
Write each percent as a reduced fraction. a.50% b.10% c.25% d.75% e.20% f.1%

12
Write each percent as a decimal number. g.65% h.7% i.30% j.8% k.60% l.1%

13
How much money is 8% of $15.00?

14
The sales tax rate is 9-1/2%. Estimate the tax on a $9.98 purchase.

15
Eric sold 80% of his 30 baseball cards. How many baseball cards did he sell?

18
Prepare for white boards.

Similar presentations

Presentation is loading. Please wait....

OK

Bell Work: Find the product (7.5 x 10 )(2 x 10 ) -3 -4.

Bell Work: Find the product (7.5 x 10 )(2 x 10 ) -3 -4.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on security attacks in information security Ppt on vision and mission Ppt on cse related topics about work Fab ms ppt online Ppt on planet saturn Ppt on operation research introduction Ppt on astronomy and astrophysics impact Ppt on french culture in french language Ppt on natural resources and conservation service Ppt on chromosomes and genes labeling