RP.3 Review for CFA

RP.3 Review for CFA

By Jerry Schaffer

Part

Whole​

Percent, Part, & Whole

Percent Proportion

Percent %

100​

Part

Whole​

Solve with Cross-Product

Percent Proportion

Percent %

100​

​Multiply then Divide

Multiple Choice

Which Cross product would be correct for "What is 30% of 50?"

• $$50\cdot a=30\cdot100$$  

• $$30\cdot a=100\cdot50$$  

• $$100\cdot a\ =\ 30\cdot50$$  

Fill in the Blank

For the problem, john finshed 70% of his test. There are 80 questions on ther test. How many questions did John complete?

80 represent what part of the percent equation?

Fill in the Blank

For the problem, john finshed 70% of his test. There are 80 questions on ther test. How many questions did John complete?

John completed...

Tax, Tip, & Discount

​Comparing Vocabulary

Part: Amount of tax/tip/discount

Whole:​ Original Amount/Price

Multiple Choice

Sammy bought a new soccer ball that was marked as 35% off. If the normal price for the ball is $24.50, what price did Sammy pay?

Which solution is set up correctly?

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  then do 24.50 + 5.08

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  Then do 24.50 - 5.08

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  then b = 5.08

Multiple Choice

Sammy bought a new soccer ball that was marked as 35% off. If the normal price for the ball is $24.50, how much did Sammy Save?

Which solution is set up correctly?

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  then do 24.50 + 5.08

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  Then do 24.50 - 5.08

• $$\frac{b}{24.50}=\frac{35}{100}\$$  

  then b = 5.08