Page 623 - Basic College Mathematics with Early Integers

8.5 Exercise Set FOR EXTRA HELP

Objective Translating Write each phrase as a variable expression. Use x to represent “a number.” See Example 1.

1. The sum of a number and five 2. Ten plus a number

3. The total of a number and eight 4. The difference of a number and five hundred

5. Twenty decreased by a number 6. A number less thirty

7. The product of 512 and a number 8. A number times twenty

9. A number divided by 2 10. The quotient of six and a number

11. The sum of seventeen, a number, and the product of 12. The difference of twice a number, and four
five and the number

Objective Translating Write each sentence as an equation. Use x to represent “a number.” See Example 2.

13. A number added to -5 is -7. 14. Five subtracted from a number equals 10.

15. Three times a number yields 27. 16. The quotient of 8 and a number is -2.

17. A number subtracted from -20 amounts to 104. 18. Two added to twice a number gives -14.

Objectives Translating Write each phrase as a variable expression or each sentence as an equation. Use x to
represent “a number.” See Examples 1 and 2.

19. The product of five and a number 20. The quotient of twenty and a number, decreased by
three
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21. A number subtracted from 11 22. Twelve subtracted from a number

23. Twice a number gives 108. 24. Five times a number is equal to -75.

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