Exponential Rates Warm Up

What percent is in color?

• 3%
• 30%
• 33%
• 300%

20% of the students in Mr. Royal's classroom are 12 years old.  If there are 15 students in the classroom, how many students are 12 years old? 

• 2
• 3
• 4
• 5

Tags

CCSS.6.RP.A.3C

A scooter costs $160. The cost of a pair of roller skates is 20% the cost of the scooter. How much do the roller skates cost?

• $3200

• $140

• $32

• $128

Answer explanation

To find the cost of the roller skates, calculate 20% of the scooter's cost: 20% of $160 is $32. Therefore, the roller skates cost $32.

Tags

CCSS.6.RP.A.3C

A scooter costs $160. A bicycle costs 20% more than the scooter. How much does the bicycle cost?

• $192

• $32

• $180

• $3200

Answer explanation

The bicycle costs 20% more than the scooter. First, calculate 20% of $160, which is $32. Then, add this to the scooter's cost: $160 + $32 = $192. Therefore, the bicycle costs $192.

Tags

CCSS.6.RP.A.3C

A scooter costs $160. A skateboard costs 30% less than the scooter. How much does the skateboard cost?

• $112

• $130

• $48

• $4800

Answer explanation

The skateboard costs 30% less than the scooter. 30% of $160 is $48. Therefore, the skateboard costs $160 - $48 = $112, which is the correct answer.

Tags

CCSS.6.RP.A.3C

What is 8% of 12,000?

• 96,000

• 9,6000

• 11992

• 960

Answer explanation

To find 8% of 12,000, multiply 12,000 by 0.08. This gives 12,000 * 0.08 = 960. Therefore, the correct answer is 960.

Tags

CCSS.6.RP.A.3C

You are about to purchase your first car for $12,000. You must also pay 8% tax for the purchase. What will you end up paying in total?

• $12,000

• $12,960

• $960

• $12,008

Answer explanation

To find the total cost, calculate the tax: $12,000 x 0.08 = $960. Then add the tax to the purchase price: $12,000 + $960 = $12,960. Therefore, the total amount paid is $12,960.

Tags

CCSS.6.RP.A.3C

Costco frozen burritos are on sale for 30% off. A twelve pack typically costs $14.99. How much does it cost now?

• $30

• $4.50

• $10.49

• $11.99

Answer explanation

To find the sale price, calculate 30% of $14.99: 0.30 * 14.99 = $4.497. Subtract this from the original price: 14.99 - 4.497 = $10.493. Rounding gives $10.49, which is the new price.

Tags

CCSS.6.RP.A.3C