Percents Review

Percents Review

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GOAL

SWBAT use their knowledge of percents to solve real world problems.

SWBAT usa su conocimiento de porcentajes para resolver problemas del mundo real.

APK - Discuss and write your responses i the chat (get pencil and paper)

Todd has 𝟐𝟓𝟎% more video games than Jaylon. Todd has 𝟓𝟔 video games in his collection. He gives Jaylon 𝟖 of his games. How many video games did Todd and Jaylon have in the beginning? How many do they have now?

Multiple Choice

What is the formula shown used to find?

 $\frac{New\ Value\ -\ Old\ Value}{Old\ Value}\ \ x\ 100\$  

• Percent Error

• Part

• Whole

• Percent Change

Multiple Choice

What is this formula called?

Part = Percent x Whole

• Part

• Percent formula

• Percent proportion

• Whole formula

Open Ended

a) What is 15% of 200? (use a calculator)

b) Are you finding the part, whole or percent?

Open Ended

a) What percent of 350 is 115? (Use a calculator)

b) Are you finding the part, whole or percent?

Multiple Select

Jessica wanted to buy a pair of shoes which was originally priced at $110. If she uses a 25% off coupon, how much would she pay for the shoes?

• $82.50, because 75% of $110 is $82.50

• $27.50, because 25% of $110 is $27.50

• $85, because $110 - $25 is $85

• $82.50, because 25% of $110 is $27.50.

Open Ended

If a store sold a bike for $359.99, Which includes a markup of 15%. How much did the store owner pay for the bike?

Open Ended

Marcus estimated that a total of 230 people would attend the choir concert. 300 people actually attended. What was his percent error? How could this value help him for the next concert?

Multiple Choice

If the COVID -19 cases in NYC moved from 4567 on December 1st to 4726 of January 1st. What was the percent change? (to the nearest hundredths)

• 159%

• 3.48%

• -159%

• -3.48%