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1. |
Use the formula d = rt to find the rate r of travel if t = 3.5 hours
and d = 203 miles. |
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A. |
53 miles per hour |
B. |
68 miles per hour |
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C. |
63 miles per hour |
D. |
58 miles per hour |
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Hint |
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2. |
George and a group of his friends are going to a baseball game. Tickets cost $12 apiece and a program costs $5. If George and his friends go to the game and only George buys a program, write an expression for the total amount that George and his friends spent at the game. Use t for the number of tickets bought. |
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A. |
5(t + 12) |
B. |
5t + 12 |
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C. |
12t + 5 |
D. |
12(t + 5) |
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Hint |
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3. |
Janet was filling up a water balloon that had a tiny hole in it. The balloon can hold 12 ounces of water, but the hole leaks water out at 0.5 ounces per minute. How many ounces of water will be in the balloon m minutes after it is filled? |
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A. |
12 + 0.5m |
B. |
12m + 0.5m |
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C. |
12 – 0.5m |
D. |
12m – 0.5m |
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Hint |
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4. |
Find an explanation for the expression s + 3. |
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A. |
If s is the number of sunny days, s + 3 is the number of sunny days 3 years ago. |
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B. |
If s is the number of students in the classroom, s + 3 is the number of students after 3 students leave the class. |
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C. |
If s is the number of students in the classroom, s + 3 is the number of students after 3 new students join the class. |
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D. |
If s is the number of sunny days, s + 3 is the number of sunny days in March, the third month of the year. |
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Hint |
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5. |
Using the formula for the area of a trapezoid  , find A
if h = 7 cm, b1 = 3 cm, and b2 = 5 cm. |
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A. |
28 cm2 |
B. |
18 cm2 |
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C. |
25 cm2 |
D. |
7.5 cm2 |
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Hint |
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