1-7
Exercises
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MS10 1-7
Exercises 1–13, 15, 17, 19, 21,
23, 25, 31
GUIDED PRACTICE
See Example 1
See Example 2
Write each phrase as an algebraic expression.
1. the product of 7 and p
2. 3 less than a number
3. 12 divided into a number
4. 3 times the sum of a number and 5
5. Carly spends $5 for n notebooks. Write an algebraic expression to
represent the cost of one notebook.
6. A company charges $46 for cable T V installation and $21 per month for
basic cable service. Write an algebraic expression to represent the total
cost of m months of basic cable service, including installation.
INDEPENDENT PRACTICE
See Example 1
Write each phrase as an algebraic expression.
7. the sum of 5 and a number
9. the quotient of a number and 8
8. 2 less than a number
10. 9 times a number
11. 10 less than the product of a number and 3
See Example 2
12. Video Express sells used tapes. Marta bought v tapes for $45. Write an
algebraic expression for the average cost of each tape.
13. A 5-foot pine tree was planted and grew 2 feet each year. Write an
algebraic expression for the height of the tree after t years.
PRACTICE AND PROBLEM SOLVING
Extra Practice
Write each phrase as an algebraic expression.
See page EP3.
14. m plus the product of 6 and n
15. the quotient of 23 and u minus t
16. 14 less than the quantity k times 6
17. 2 times the sum of y and 5
18. the quotient of 100 and the quantity 6 plus w
19. 35 multiplied by the quantity r less 45
20. Multi-Step An ice machine can produce 17 pounds of ice in one hour.
a. Write an algebraic expression to describe the number of pounds of ice
produced in n hours.
b. How many pounds of ice can the machine produce in 4 hours?
21. Career Karen earns $65,000 a year as an optometrist. She received a
bonus of b dollars last year and expects to get double that amount as a
bonus this year. Write an algebraic expression to show the total amount
Karen expects to earn this year.
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Chapter 1 Algebraic Reasoning
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