PRE-ALGEBRA QUIZ 7B -APPLICATIONS OF PERCENT

Write 12.5% as a decimal..125

Write 6.5% as a decimal..065

Translate the following sentence into an equation: 18 is 44% of what number? 18 =.44n

Translate the following sentence into an equation: 104 is 36% of what number? 104 =.36n

15 is what percent of 85? 15 = 85p = 17.6%

44 is what percent of 120? 44 = 120p = 36.7%

A price change from $44 to $ = x = x = 44 x X = 40.9% increase

A price change from $56 to $ = x = x = 56 x X = 25% decrease

Weight change from 165 lbs to 122 lbs = x = x = 165 x X = 26.1% decrease

Weight change from 112 lbs to 132 lbs = x = x = 112 x X = 17.9% increase

A car salesman was able to sell a car for $14,500. He earned 6% commission on the sale. How much was his commission? X= 14,500(.06) X = $870

A relator was able to sell a house for $167,500. He earned 5% commission on the sale. How much was his commission? X = (.05) X= $8,375

Janet earns 8.5% commission on her clothing sales. If she wants to earn $100 commission, how much must she sell? 100 =.085x X = $1,176.47

Jack worked his first week at Hershey Park. He earned a total of $ He was disappointed to see that $20.20 was withheld for taxes. What percent of his check was withheld? 20.2 = 162.5x X= = 12.4%

In 2002, the average monthly price for cell phone plans was $ Because of data plans, the cost has increased 44.5% per month. What is the new average monthly cost? X = x = 3, X = $113.43