Section 2.6 Percent and Mixture Problems

The number 28.6 is what percent of 52?

• 50%

• 55%

• 57%

• 54%

A birthday celebration meal is $40.50 including tax. Find the total cost if a 15% tip is added to the given cost.

• $47.58

• $45.58

• $48.58

• $46.58

Tags

CCSS.6.RP.A.3C

A used automobile dealership recently reduced the price of a used compact car by 8%. If the price of the car before discount was $18,500, find the discount and the new price

• Discount $1486; new price $17,014

• Discount $1488; new price $17,012

• Discount $1480; new price $17,020

• Discount $1490; new price $17,010

Tags

CCSS.6.RP.A.3C

The number of Internet-crime complaints decreased from 290 in 2012 to 263 in 2013. Find the percent of decrease

• 9.1%

• 9.2%

• 9.3%

• 9.5%

Tags

CCSS.6.RP.A.3C

Find the original price of a pair of shoes if the sale price is $78 after a 25% discount.

• $104

• $99

• $102

• $100

Tags

CCSS.6.RP.A.3C

Find last year's salary if, after a 4% pay raise, this year's salary is $44,200

• $43,475

• $42,250

• $43,600

• $42,500

Tags

CCSS.6.EE.B.7

How much pure acid should be mixed with 2 gallons of a 40% acid solution in order to get a 70% acid solution?

• 1.75 gal

• 2.25 gal

• 1.95 gal

• 2 gal

Tags

CCSS.HSA.CED.A.1

How many cubic centimeters (cc) of a 25% antibiotic solution should be added to 10 cubic centimeters of a 60% antibiotic solution to get a 30% antibiotic solution?

• 55 cc

• 58 cc

• 54 cc

• 60 cc

Tags

CCSS.HSA.CED.A.1

How much water should be added to 30 gallons of a solution that is 70% antifreeze to get a mixture that is 60% antifreeze?

• 2 gal

• 5 gal

• 10 gal

• 4 gal

Tags

CCSS.8.EE.C.7B

A recent survey showed that 64% of US colleges have internet access in their classrooms. There are approximately 9800 post-secondary institutions in the US. How many of these would you expect to have internet access in their classrooms?

• 6274

• 6272

• 6278

• 6276