Percent Increase and Decrease with Equations

A pair of designer sneakers was purchased for $120. Since they were purchased, their price has increased by 15%. What is the new price?

• $135

• $138

• $140

• $145

• $150

Elena’s aunt bought her a $150 savings bond when she was born. When Elena is 20 years old, the bond will have earned 105% in interest. How much will the bond be worth when Elena is 20 years old?

• $300

• $305

• $307.50

• $310

• $315

Does this question represent a percent INCREASE or a percent DECREASE?

• Increase

• Decrease

If a population of 5000 increases by 10% in a year, what will be the population after one year?

• 5500

• 6000

• 5050

• 6500

A car decreases in value by 15% over a year. If it was originally worth $20,000, what is its value after one year?

• $17,000

• $18,000

• $15,000

• $16,500

A population of 500 increases by 10% in a year. What is the new population?

• 550

• 600

• 510

• 500

A pair of shoes was marked down 25% from its original price of $80. What is the new price?

• $60

• $70

• $65

• $55

A population of 5000 increases by 10% in a year. What is the new population?

• 5500

• 6000

• 500

• 4500

A painting cost $4,563 though over a span of 5 years increased by 500%. How much does it cost now?

• $41,000

• $27,378
  

• $31,000

• $27,386

Tags

CCSS.Math.Content.7.RP.A.3