Warm-Up
Name Date
Match the equation and the word sentence.
1. The sum of a number n and 3 is 9. A. [pic]
2. The product of a number n and 3 is 9. B. [pic]
3. The quotient of a number n and 3 is 9. C. [pic]
4. 9 is 3 less than a number n. D. [pic]
5. Use the following situation to answer the questions:
A doctor's schedule allows 10 minutes to see each patient. The
doctor sees patients for 4 hours in the morning and 3 hours in
the afternoon, with a 1 hour lunch break. How many patients
can she see in an hour and a half?
a. What information in the problem do you not need? Explain.
b. Write a shorter word problem containing only the essential information.
c. Write and solve an equation for the word problem.
Solve the equation. Check your solution.
6. [pic] 7. [pic] 8. [pic]
9. [pic] 10. [pic] 11. [pic]
12. Four runners, or 16% of the team, finished a cross-country course
in under 12 minutes. Write and solve an equation to find the number
of students s on the team.
13. A soccer game is 60 minutes long. Forty-one minutes of the game
have been played. Write and solve an equation to find the number
of minutes m that remain.
Name Date
Solve the equation. Check your solution.
14. [pic] 15. [pic] 16. [pic]
17. A lighting fixture with a support and 4 track lights weighs 3.4 pounds. The support weighs 0.6 pound. Write and solve an equation to find
the weight w of each track light.
Write and solve an equation to find the missing dimension of the
figure. Check your solution.
18. [pic] 19. [pic]
20. [pic] 21. [pic]
22. You want to find the diameter of a large circular fountain in the park, but can't measure straight across. Explain how you could measure the circumference of the fountain to estimate the diameter.
23. To install the right size heating and cooling system, you must know how many cubic feet an office building contains. The building is
120 feet wide, 20 feet high, and 48 feet long. Find the volume.
24. A raised gardening bed contains 32 cubic feet of dirt. The bed is 6 feet wide and 8 feet long. How deep is the dirt?
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Answers
1.
2.
3.
4.
5. a. See left.
b. See left.
c.
6.
7.
8.
9.
10.
11.
12.
13.
Test A (continued)
Test A
Chapter
7
Chapter
7
Answers
14.
15.
16.
17.
18.
19.
20.
21.
22. See left.
23.
24.
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