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Chpater 6 T2B

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
Express 6 cups to 4 quarts as a fraction in simplest form.
a.
mc001-1.jpg
c.
mc001-3.jpg
b.
mc001-2.jpg
d.
mc001-4.jpg
 

 2. 
Express the ratio 6 ounces to 3 cups as a fraction in simplest form.
a.
2
c.
mc002-2.jpg
b.
mc002-1.jpg
d.
mc002-3.jpg
 

 3. 
Express 423 miles every 9 hours as a unit rate.
a.
3807 mi/h
c.
47 mi/h
b.
74 mi/h
d.
4.7 mi/h
 

 4. 
Which of the following has the same unit rate as 3 cans for $1.98?
a.
2 cans for $1.32
c.
6 cans for $4
b.
5 cans for $5.90
d.
4 cans for $3.60
 

 5. 
Which of the following is the same rate as 8 liters per minute?
a.
2 gal/min
c.
16 gal/min
b.
4 gal/min
d.
30 gal/min
 

 6. 
Which of the following shows the correct metric approximation for 10 ounces?
a.
0.4 gram
c.
28.5 grams
b.
2.9 grams
d.
283.5 grams
 

 7. 
It costs $50 to rent a kayak for 4 hours. If the cost is proportional to the number of hours rented, which of the following is not an equivalent rate?
a.
$25 for 2 hours
c.
$60 for 5 hours
b.
$37.50 for 3 hours
d.
$75 for 6 hours
 

 8. 
Which sets of numbers are proportional?
a.

mc008-1.jpg
c.

mc008-3.jpg
b.

mc008-2.jpg
d.

mc008-4.jpg
 

 9. 
What value of y makes mc009-1.jpg = mc009-2.jpg a proportion?
a.
10.4
c.
2.6
b.
6.2
d.
0.62
 

 10. 
A soup recipe calls for 2 pounds of rice for 25 servings. How many pounds are needed for 30 servings?
a.
3.5
c.
2.4
b.
3.3
d.
0.5
 

 11. 
A camper can buy 5 bundles of firewood for $40. Which equation could be used to find the total cost c if a camper wants to buy 3 bundles of firewood?
a.
c = 5 mc011-1.jpg 8
c.
c = 3 mc011-3.jpg 40
b.
c = 3 mc011-2.jpg 8
d.
c = 5 mc011-4.jpg 1.4
 

 12. 
Felino used a scale of 1 inch = 2 feet to construct a scale model of his kitchen. The refrigerator in the model has a height of 3 inches. What is the actual height of the refrigerator?
a.
1.5 feet
c.
6 feet
b.
3 feet
d.
9 feet
 

 13. 
Suppose a model of the Queen Mary is 17 inches in length. The actual length of the Queen Mary is 1020 feet. What is the scale of the model?
a.
1 ft = 60 in.
c.
60 in. = 60 ft
b.
1 in. = 60 ft
d.
60 in. = 1020 ft
 

 14. 
A map has a scale of mc014-1.jpg inch = 250 miles. How many inches on the map would represent 750 miles?
a.
mc014-2.jpg inch
c.
3 inches
b.
mc014-3.jpg inch
d.
12 inches
 
 
Use the similar triangles below.

nar001-1.jpg
 

 15. 
Find the value of x.
a.
12
c.
19
b.
18.75
d.
21.3
 

 16. 
Find the value of mc016-1.jpg.
a.
39°
c.
68°
b.
40°
d.
72°
 

 17. 
Let W(mc017-1.jpg4, mc017-2.jpg8) be a point on quadrilateral WXYZ. What are the coordinates of W' if the quadrilateral is dilated by a scale factor of mc017-3.jpg?
a.
(mc017-4.jpg2, mc017-5.jpg4)
c.
(mc017-6.jpg8, mc017-7.jpg16)
b.
(2, 4)
d.
(mc017-8.jpg2, mc017-9.jpg8)
 

 18. 
In the coordinate graph below, quadrilateral JKLM was dilated to form quadrilateral J'K'L'M'. Which number best represents the scale factor used to change the quadrilateral?

mc018-1.jpg
a.
mc018-2.jpg3
c.
mc018-5.jpg
b.
mc018-3.jpgmc018-4.jpg
d.
3
 

 19. 
At the same time a 15-foot pole casts a 7.5-foot shadow, a nearby tree casts a 24-foot shadow. How tall is the tree?
a.
15 feet
c.
24 feet
b.
22 feet
d.
48 feet
 

 20. 
At the same time a 5.5-foot person casts a 22-foot shadow, a nearby tree casts a 44-foot shadow. How tall is the tree?
a.
5.5 feet
c.
12 feet
b.
11 feet
d.
48 feet
 

Short Answer
 

 21. 
Photocopiers can produce copies that are larger or smaller than the original. In terms of the original, describe what happens when a copy is dilated by a scale factor of 1.2.
 



 
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