Percent Change/Error Simple Interest

Find the percent of change if the original cost was $5 and the new cost is $1. 

• Increase $4
• Decrease $4
• Decrease 80%
• Decrease 400%

Tags

CCSS.7.RP.A.3

Ann works in a supermarket for $10.00 per hour. She received a raise to $12.00. What is the percent of change in her hourly wage?

• Increase 16.67%
• Decrease 16.67%
• Increase 20%
• Decrease 20%

Tags

CCSS.7.RP.A.3

One week, 72 people got a speeding ticket. The next week, only 36 people got a speeding ticket. What is the percent of change in the speeding tickets?

• Increase 50%
• Decrease 50%
• Increase 1%
• Decrease 1%

Tags

CCSS.7.RP.A.3

The simple interest formula is I=Prt.  The P represents the principle.  The principle is ___________________.  

• the amount of money borrowed or deposited
• the percent interest for his year
• the amount taxed
• the amount the bank owes you for being a customer at their bank

Tags

CCSS.7.RP.A.3

Emilio borrows $1200 from a bank with 8% simple interest per year.  How much will he have to pay back total in 2 years?

• $150
• $192
• $1350
• $1392

Tags

CCSS.7.RP.A.3

Principal = $500
Interest rate =5%
Time = 5 years
What is the interest earned?

• 95
• 105
• 125
• 135

Tags

CCSS.7.RP.A.3

You estimate that 200 people attend a school concert. The actual attendance was 240.   What is the percent error?

• 20%
• 18%
• 16%
• 17%

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

You guessed that the Chicago Cubs would win 95 games during the regular season. They actually won 103. What was your percent error? Round to the nearest tenth if necessary.

• 7.8%
• 7.7%
• 0.77%
• 0.78%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

You guess that Lebron James would score 35 points during the game. He actually scored 28. Find your percent error.

• 30%
• 33%
• 75%
• 25%

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

Sofia deposited $1,700 into a savings account that accumulates 1.8% interest. If she keeps the money in the account for 7 years, how much money will be in the account?

• $214.20
• $1,914.20
• $21,420.00
• $23,120.00

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3