Name: 
 

Chapter 9



Completion
Complete each statement.
 

 1. 

0.91 written as a percent is ____________________.
 

 

 2. 

8.731 written as a percent is ____________________.
 

 

 3. 

11/16 expressed as a percent is ____________________.
 

 

 4. 

60 is 80% of ____________________.
 

 

 5. 

25% of 120 is ____________________.
 

 

 6. 

173.8% of 87.20 is ____________________. (round to 1 decimal place)
 

 

 7. 

519 is 120% of ____________________.
 

 

 8. 

A casting, when first poured, is 14.872 inches long. The casting shrinks 0.098 inch when it cools. The percent of shrinkage is ____________________. (round to 2 decimal places)
 

 

 9. 

A carpenter completes a home remodeling job in 85% of the estimated time. The estimated time is 136 hours. The job actually takes ____________________ hours to complete. (round to the nearest hour)
 

 

 10. 

An engine loses 6.70 horsepower through friction. The power loss is 5.20% of the total rated horsepower. The total horsepower rating is ____________________. (round to the nearest whole horsepower)
 

 

 11. 

An alloy of brass is composed of 84.6% copper, 5.20% tin, 6.70% lead, and zinc. The number of pounds of zinc required to make 520.0 pounds of alloy is ____________________.
 

 

 12. 

The first shift of a manufacturing firm produces 3.6% defective pieces out of a total production of 2,555 pieces. The second shift produces 5.8% defective pieces out of a total production of 2,072 pieces. The first shift produces ____________________ more acceptable pieces than the second shift.
 

 

Problem
 

 13. 

Find the simple interest and the amount on $1000 at 15% after 3 years.
 

 14. 

Find the interest after a 7 month period if the annual rate of interest on $1000.00 is 12%.
 

 15. 

What is 7% of 140?
 

 16. 

80 is 60% of what number?
 

 17. 

What percent of 227.6 is 329.4? (round answer to 1 decimal place)
 



 
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