Praxis Elem. Ed- Math(5003) Chpt 5 - Introduction to Algebraic Expressions Quiz Questions

20. If the price of a shirt is $25, then express the price of n shirts. $25n n/$25 $25/n $25 + n $25 - n

$25n

26. A particular shirt is on sale for $12. The regular price is $20. How much is the discount? Use the formula Discount = Regular price - Sale price. $8 $12 $5 $6 $20

$8

17. Evaluate the expression when x = -1 and y = 4. Please give your answer in its most reduced form. 3/2 -7/2 7/2 -3/2 7/6

-3/2

24. Use the distributive property to simplify the following expression: -(4 + a) -4a -4 - a -4 + a 4a

-4 - a

29. 9x + 11x 11x 2x 20x 9x 9x + 11x

20x

4. 11x + 11x - 2x 33x 20x 22x - 2x 18x 22x

20x

25. What is the volume of a gift box that measures 8 inches long, 8 inches wide, and 4 inches tall? 300 inches cubed 68 inches squared 256 inches cubed 20 inches 128 inches cubed

256 inches cubed

28. Translate. Three chocolate bars and six chocolate bars combined is how many chocolate bars? 3/6 = x 3 + 6 = x 3*6 = x 6 - 3 = x 3 - 6 = x

3 + 6 = x

19. CEO Donald earns three times as much as the combined salary of his two vice presidents, Susan and Kurt. If Susan earns s and Kurt earns k, then how much does Donald earn in terms of s and k? 3/(s + k) 3 + s + k 3s + k 3(s + k) s + k

3(s + k)

6. 34y - 4y 38y 28y 30x 30y 34y - 4y

30y

16. Evaluate 7x when x = 5. 35 12 2 7/5 -2

35

22. Use the distributive property to simplify the following expression: 3(a + b) 3 + ab 3(b + a) 3a + 3b 3(ab)

3a + 3b

8. Which of the following is an equation? 4x + 9 3x + 2 = 4x 4x < 9x 10 + 10x + 10x^2 x^2 + 3x

3x + 2 = 4x

23. Use the distributive property to simplify the following expression: -3(-x - 3y) -3x + 9y -3x - 6y 3x + 9y 3x +6y

3x + 9y

18. Evaluate (p - 3)2 when p = 5. 16 25 9 4 -9

4

30. How many terms does this equation have? 7x + 7s + 7t = 10x + 4 2 4 6 3 5

5

7. Which is the coefficient in this equation? 5x + 3 = 0 0 5x 5 3 4

5

27. Mary's living room measures 7 feet wide by 12 feet long. In the formula for the area of her living room, A = l ∗ w, what is w ? 5 12 7 19

7

5. Which of the following is a like term to 10xy? 3x 8xy 10x 10y 10xy^2

8xy

10. Which of the following statements about dependent and independent variables is true? A change in an independent variable can cause a change in a dependent variable. A change in a dependent variable can cause a change in an independent variable. Independent variables rely on other variables to find their value. Dependent variables do not rely on other variables to find their value.

A change in an independent variable can cause a change in a dependent variable.

2. The word 'per' is which math operation? Division Addition Equals Multiplication Subtraction

Division

15. What type of equation is this? Rational Linear Radical Quadratic Cubic

Linear

3. The word ''of'' stands for what mathematical operation? Addition Equals Division Subtraction Multiplication

Multiplication

13. What type of equation is this? Linear Quadratic Cubic Rational Radical

Radical

14. What type of equation is this? Rational Quadratic Linear Cubic Radical

Rational

1. The word 'fewer' is which math operation? Addition Subtraction Multiplication Division Equals

Subtraction

12. In the following equation, identify the dependent variable: There is not enough information given to determine which variable is the dependent variable. k is the dependent variable j is the dependent variable. i is the dependent variable.

There is not enough information given to determine which variable is the dependent variable.

21. Keara is 5 years older than Michelle. If Michelle is m years old, write an expression for Keara's age. m - 5 m + 5 5/m m/5 5m

m + 5

11. In the following equation, which variable is the independent variable? f 1 f(x) x

x

9. Which is the variable in this equation? 7y + 8 = 10 7 10 8 7y y

y