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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. |
68 miles per hour |
B. |
63 miles per hour |
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C. |
53 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 goes with 5 friends, write an expression for the total amount that George and his friends spent at the game. Use p for the number of programs bought. |
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A. |
12p+ 5 |
B. |
5p + 12 |
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C. |
12p + 72 |
D. |
5p + 72 |
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Hint |
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3. |
A CD rotates in a CD player at about 350 revolutions per minute. How many revolutions would the CD have made after h hours? |
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A. |
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B. |
350h |
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C. |
21,000h |
D. |
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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 students in the classroom, s + 3 is the number of students after 3 new students join the class. |
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B. |
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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C. |
If s is the number of sunny days, s + 3 is the number of sunny days 3 years ago. |
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D. |
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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Hint |
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5. |
Find an explanation for the expression 5a + 3. |
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A. |
If a is the price of an anchovy pizza in dollars, 5a + 3 is the total cost of 5 anchovy pizzas with a delivery fee of $8. |
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B. |
If a is the price of an anchovy pizza in dollars, 5a + 3 is the price of 8 anchovy pizzas. |
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C. |
If a is the price of an anchovy pizza in dollars, 5a + 3 is the total cost of 5 anchovy pizzas with a delivery fee of $3. |
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D. |
If a is the price of an anchovy pizza in dollars, 5a + 3 is the total cost of 3 anchovy pizzas with a delivery fee of $5. |
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Hint |
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