Chapter 6 Quiz: Percents

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%
• 67%
• 85%
• 92%

The regular price of a scooter is $65.50. It is on sale for $52.40. What is the percent decrease from the regular price to the sale price of the scooter? 

• 35%
• 25%
• 30%
• 20%

Bob estimates that there will be 230 people who attend the concert.  There was an actual total of 300 people who attended.  Find the percent error.  

• 23%
• 33%
• 27%
• 37%

The students measured length during a science experiment, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

• 15.79%

• 18.75%

• 2.25%

• 18%

Ms. Meckley estimated 70 students would try out for the Cross Country team. This year, only 63 students tried out. What was her percent error?

• 11%

• 50%

• 12%

• 1%

A McDonald's cheeseburger cost $0.79 in 1999. Today a cheeseburger costs $1.00. What is the percent change?

• 21% increase

• 26.58% increase

• 26.58% decrease

• 21% decrease

In 1999, the price of unleaded fuel was $1.09.  In 2015, the price of unleaded fuel is $1.89.  What is the percent change?

• 173% increase
• 73% increase
• 73% decrease
• 27% increase

Percent is based out of ______?

• 10

• 100

• 1000

• 400