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Chapter 3 Practice Test

 
Solve the equation.
 

 1. 

mc001-1.jpg = 26
a.
37
b.
38
c.
15
d.
14
 

 2. 

mc002-1.jpg = 15
a.
–75
b.
75
c.
3
d.
–3
 

 3. 

A college student has set aside $240 for the rest of the school year to use the coin-operated laundry facility in his dormitory. Each time he uses the machines, it costs $7.50. Choose the equation that represents the amount remaining in his fund, f, after he has done laundry x times. Find the amount remaining in the fund after 12 trips to the laundry facility.
a.
mc003-1.jpg
c.
mc003-3.jpg
b.
mc003-2.jpg
d.
mc003-4.jpg
 
 
Solve the equation.
 

 4. 

mc004-1.jpgmc004-2.jpg
a.
520
b.
2080
c.
–520
d.
–2080
 

 5. 

The length of the base of an isosceles triangle is one fourth the length of one of its legs. If the perimeter of the triangle is 16 inches, what is the length of the base?
a.
3mc005-1.jpg inches
c.
1mc005-3.jpg inches
b.
2mc005-2.jpg inches
d.
7mc005-4.jpg inches
 

 6. 

Donny decides to manufacture and sell his band’s CD. It requires an investment of $3349 for computer hardware and it will cost $3.65 for materials for each disk. If each CD sells for $13.50, how many must he sell to break even?
a.
196
b.
340
c.
195
d.
339
 
 
Solve the equation.
 

 7. 

8x – 9 = x + 9
a.
mc007-1.jpg
b.
mc007-2.jpg
c.
mc007-3.jpg
d.
mc007-4.jpg
 

 8. 

mc008-1.jpg = mc008-2.jpg
a.
12
b.
mc008-3.jpg
c.
3
d.
mc008-4.jpg
 

 9. 

A rental car agency charges $17 per day plus $.07 per mile to rent a certain car. Another agency charges $22 per day plus $.05 per mile to rent the same type of car. How many miles per day will have to be driven for the cost of a car from the first agency to equal the cost of a car from the second agency?
a.
195 miles per day
c.
2500 miles per day
b.
250 miles per day
d.
1950 miles per day
 

 10. 

Two machines can complete 5 tasks every 4 days. Let t represent the number of tasks these machines can complete in a 31-day month. Which proportion can you use to find the value of t?
a.
mc010-1.jpg
c.
mc010-3.jpg
b.
mc010-2.jpg
d.
mc010-4.jpg
 

 11. 

A cyclist can travel 29.6 miles in 2 hours. At this rate, how far can the same cyclist travel in 45 minutes?
a.
14.8 miles
c.
11.1 miles
b.
22.2 miles
d.
16.2 miles
 

 12. 

In 2 hours a candymaker can produce 80 boxes that each contain 10 pieces of candy. How many pieces of candy does the candymaker produce in 6 hours?
a.
480 pieces
c.
4800 pieces
b.
2400 pieces
d.
600 pieces
 

 13. 

What percent of 12 is 6?
a.
0.5%
b.
mc013-1.jpg%
c.
2%
d.
50%
 

 14. 

Of every 5 hot dogs Martha sold, 3 had sauerkraut. What percent of the hot dogs sold had sauerkraut?
a.
6%
b.
mc014-1.jpg
c.
60%
d.
0.6%
 

 15. 

Solve mc015-1.jpg for mc015-2.jpg.
a.
mc015-3.jpg
c.
mc015-5.jpg
b.
mc015-4.jpg
d.
mc015-6.jpg
 

 16. 

When x pounds of force is applied to one end of a lever that is L feet long, the resulting force y on the other end is determined by the distance between the fulcrum (the lever's pivot) and the end of the lever on which the x pounds of force is exerted.
mc016-1.jpg

The formula relating the forces is mc016-2.jpgWhat formula can you use to find the length of the lever?
a.
mc016-3.jpg
c.
mc016-5.jpg
b.
mc016-4.jpg
d.
mc016-6.jpg
 



 
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