Page 102 - Math Course 1 (Book 1)
P. 102
Expressions Containing Variables
Skill Practice!
ALGEBRA Evaluate each expression if x = 4, y = 6, and z = 3.
1. x + y + z 4. x + y - 3z
2. 3x + y 5. 3(x + z)
3. x - z 6. yz - x
ALGEBRA Evaluate each expression if a = 7, b = 9, c = 2, and d = 5
7. a + b + c 10. (a + b) (c + d)
8. a + b -(c + d)
11. ab - cd
9. 3a + 4d 12. bc
a - d
ALGEBRA Translate each phrase into an algebraic expression.
13. two inches shorter than Kathryn’s height
14. the quotient of some number and thirteen
15. some number added to seventeen
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