Proportions/ratios/percent Of Change Test
21 Questions
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Questions and Answers
- 1.Jeannine has a bag with 3 videocassettes, 4 marbles, 7 books, and one orange. What is the ratio of books to videocassettes? •
- A.
3 to 7
- B.
7:3
- C.
7 to 4
- 2.• • •Bobby has a bag full of marbles that he keeps in his room. He has 35 red marbles and 25 green marbles. Find the ratio of red marbles to green marbles, and put it in its simplest form.
- A.
7 to 5
- B.
35:25
- C.
5 to 7
- 3.
- 4.Solve for h: 2h + 1 = 9
- A.
H = 4.5
- B.
H = 8
- C.
H = 4
- 5.Which answer is a 'clue word' for division?
- A.
Product
- B.
Split equally
- C.
Difference
- 6.•Jeannie takes inventory of her closet and discovers that she has 8 shirts for every 5 pair of jeans. If she has 40 shirts, how many pairs of jeans does she have?
- A.
64 pairs of jeans
- B.
1 pair of jeans
- C.
25 pairs of jeans
- 7.Solve for x:4x - 1 > 15
- A.
X > 4
- B.
X > -4
- C.
X < 4
- 8.Write an algebraic expression for "two times a number minus five". Use x as a variable.
- 9.Solve for x:-2x + 6 ≤ 20
- A.
X ≤ -7
- B.
X ≥ -7
- C.
X ≥ 7
- 10.•Solve this proportion: 78 : 162 = x : 193
- A.
92.9
- B.
400.8
- C.
15054
- 11.•David read 40 pages of a book in 50 minutes. How many pages should he be able to read in 80 minutes?
- A.
3200 pages
- B.
64 pages
- C.
100 pages
- 12.Shawna reduced the size of a rectangle to a height of 2 in. What is the new width if it was originally 24 in wide and 12 in tall?
- A.
1 inch
- B.
6 inches
- C.
4 inches
- 13.
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State whether these ratios are equal: 69 , 48- A.
These two ratios are proportions
- B.
These two ratios are not proportions
- 14.Determine whether the change is an increase or decrease. Then obtain the percent of increase or decrease. Round the answer to the nearest whole percent. old: 345 acres new: 380 acres
- A.
10.14% increase
- B.
11.14% decrease
- C.
35.12% increase
- 15.The number of participants in an athletic competition increased from 312 to 351. Find the percent of increase.
- A.
13% increase
- B.
12.5% increase
- C.
12.5% decrease
- 16.In 1990, Mary's height was 61 cm. In 2000, she grew to 130 cm. Find the percent increase in Mary's height.
- A.
50% increase
- B.
13% increase
- C.
113% increase
- 17.Calculate the percent of change. Before: $130 After: $270.
- A.
107% increase
- B.
7% increase
- C.
10.7% increase
- 18.Determine whether the change is an increase or decrease. Then obtain the percent of increase or decrease. Round the answer to the nearest whole percent. old: 78 years new: 114 years
- A.
49.15% decrease
- B.
46.15% increase
- C.
44.15% increase
- 19.The length of a rectangle is 6 inches more than the width.
- A.
W = l + 6
- B.
L = 6 + w
- C.
L = w - 6
- 20.Which answer demonstrates the distributive property?
- A.
5 • (6 • x) = 6 • (x • 5)
- B.
4(x + 3) = 4x + 12
- C.
3 + x = x + 3
- 21.•Jim found out that after working for 9 months he had earned 6 days of vacation time. How many days will he have earned after working for two years?
- A.
20 days of vacation time
- B.
36 days of vacation time
- C.
16 days of vacation time
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