Consumer Math Warmup

1)  Betty sells her famous brownies to the local bakery.  Her supplies cost $5.35 for a dozen (12) brownies. To make a profit, Betty will apply a 40% markup. What is the amount of markup Betty will add? Round to the nearest penny.

• $7.49

• $2.14

• $3.21

• $0.40

Answer explanation

Your decision should have been to answer the amount of markup only (the profit Betty will add to the cost of supplies).

If your answer was higher...you may have answered with a new total price.

Tags

CCSS.6.RP.A.3C

2. 2) David is planning to buy a new Smart TV. The cost of the TV is $299.00 ... At the store, David sees that the TV is on sale for 25% off the original price. How much does David pay for the TV, not including tax (don't worry about the sales tax)?

• $74.75

• $373.75

• $224.25

• $25.00

Answer explanation

This is a discount question...so you should have calculated the percentage...then subtracted that amount from the original price.

This question is asking for the new Total ... the sale price.

Tags

CCSS.6.RP.A.3C

3) Julie bought Billy lunch for a total of $38.50.  They want to leave a tip of at least 15%. Which dollar amount is the best estimate for at least 15%? (dollar amount means whole dollar amount)

• $44.28

• $5.00

• $6.00

• $5.78

Answer explanation

Dang....y'all better all get this correct...IF there is a similar question on the test (hint, hint). Calculate the tip percentage, then answer with the higher whole dollar amount. $5.78 becomes $6.00 ... $6.50 becomes $7.00 ... $4.25 becomes $5.00 ....

The key words here were "at least"

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

4) Linsey bought a shirt for $35.00. The sales tax is 7%. The total cost of the shirt is (include the $)

Answer explanation

Looking for a total here. Calculate the tax, and add it to the original price. Since you typed the answer...use the $ and always two digits to the right of the decimal point (cause this is money).

Tags

CCSS.6.RP.A.3C

5) The amount of sugar in a mega jug of iced tea was reduced from 65 grams to 52 grams. What is the percent decrease in the amount of sugar in this drink?

• 13%

• 25%

• 2%

• 20%

Answer explanation

Lookup the NOO formula! "From" 65 means that 65 is the "old" value .... "To" 52 means that 52 is the "new" value.

Tags

CCSS.6.RP.A.3C

6) Kerry sold 13 boxes of cookies for a fund raiser in the first week. She sold 18 boxes in the second week.

Rounded to the nearest whole number, the percent increase in the number of boxes of cookies Kerry sold from the first week to the second week is (put the % key ... for instance 15 percent is 15%):

Answer explanation

Use the NOO formula again ... new value is 18 and the old value is 13.

Tags

CCSS.6.RP.A.3C