Unit 3 Test: Consumer Math and Compound Probability

Find the total cost. $20 meal; 9% sales tax; 20% gratuity after the sales tax has been added.

• I should at 20 + 20 + 9 together to get my total

• I should find 20 % of $20

  I should also find 9 % of $20

  Then I should add those to totals together to get my total cost

• I should find 20 % of $20

  I should also find 9 % of $20

  Then I should subtract that amount from my original price to get my total

Tags

CCSS.6.RP.A.3C

The grocery store has a dozen cupcakes for $22. You have a loyal customer card that gives you 20% off. What do you end up paying for the cupcakes?

• For this problem I am supposed to divide the amount of change over the original value and times that by 100.

• You find 20 % of $22.00. That is going to be my amount I add to the original price in order to find the amount paid for the cupcakes.

• I find 20 % of $22.00. That is going to be my amount I subtract from the original price in order to find the amount paid for the cupcakes.

Tags

CCSS.6.RP.A.3C

Match the following steps to instructions for percent of change.

•  divide the change by the original

• Step 1

• subtract to get the find the change

• Step 4

•  multiply the answer by 100 to get your percent change

• Step 5

•  identify the large amount

• Step 2

• identify small amount

• Step 3

Tags

CCSS.6.RP.A.3C

The original price of a camera was $50 and the sale price this week is $38. What is the percent of change in the price of the camera?

• 24%
• 12%
• 20%
• 22%

Tags

CCSS.6.RP.A.3C

A $175 bicycle is discounted 25%. What is the resulting sale price for the bicycle?

• $43.75

• $25.00

• $131.25

• $150.25

Tags

CCSS.6.RP.A.3C

The regular price of a jacket is $62.00. If the discount rate is 15%, how much was the discount?

[always pay attention to the question. Are they asking the total price or are they asking for just the amount of the discount?]

• $9.30

• $25.00

• $52.70

• $45.75

Tags

CCSS.6.RP.A.3C

Match the following items with the correct amount of tax that you would pay:

• 3.98

• A microphone for $129.99 with 1% tax.

• 1.50

• A book for $49.95 with 3% tax.

• 3.62

• An MP3 player for $99.50 with 4% tax.

• 1.30

• A book for $90.50 with 4% tax.

Tags

CCSS.6.RP.A.3C

Eric received a 20% discount on a game that costs $50. How much did he pay?

• 40

• 10

• 20

• $30

Answer explanation

Discount means subtract from 100

100 - 20 = 80% of the price

Now multiply

50 x .80 = $40

Tags

CCSS.6.RP.A.3C

Kimberly's family has a dinner bill of $26 and wants to leave a 15% tip for their server. Which expression shows only much tip are they leaving?

Tags

CCSS.6.RP.A.3C

A coin is flipped and a die is rolled. What is the probability of getting a head on the coin and a 4 on the die?