1 / 13

Percents by Mrs. Fredericks

Percents by Mrs. Fredericks. Use the percent proportion = Use the percent equation p art = percent • whole. Using the percent proportion = . Find the percent What percent of 15 is 9 ? Let n represent the percent = 9 • 100 = 15n 900 = 15n 15 15

jake
Download Presentation

Percents by Mrs. Fredericks

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Percentsby Mrs. Fredericks Use the percent proportion = Use the percent equation part = percent • whole

  2. Using the percent proportion =

  3. Find the percent What percent of 15is 9? Let n represent the percent = 9 • 100 = 15n 900 = 15n 15 15 n = 60 so it is 60%

  4. Find the part What numberis 40% of 120? Let p represent the part = 40 • 120 = 100p 4800 = 100p 100 100 p = 48

  5. Find the whole 18 is 25% of what number? Let w represent the whole = 18 • 100 = 25 w 1800 = 25 w 25 25 w = 72

  6. Using the percent equation part = percent• whole

  7. Find the percent 21 is whatpercent of 40? Let n represent the percent 21 = n• 40 21 = 40n 40 40 n = 0.525 YOU MUST CHANGE THE DECIMIAL TO % FORM So we must rewrite it as 52.5%

  8. Find the part What number is 12% of 150? Let p represent the part YOU MUST USE THE DECIMAL FORM OF THE % p = 0.12• 150 p = 18

  9. Find the whole 13 is 26% of what number? Let w represent the whole YOU MUST USE THE DECIMAL FORM OF THE % 13 = 0.26• w 13 = 0.26w 0.26 0.26 w = 50

  10. Try this problem, use either method. 3 is 12% of what number?

  11. Proportion Equation = part = percent • whole = 3 = 0.12 • w 12w = 300 3 = 0.12w 12 12 0.12 0.12 w = 25 w = 25

  12. Let’s try one more. Use the other method this time. What is 72% of 50?

  13. Proportion Equation = part = percent • whole = p = 0.72 • 50 100p = 3600 p = 36 100 100 p = 36

More Related