Mathematics, 23.08.2019 17:30, nmg9
1. translate the phrase “nine more than two times a number” into an algebraic expression.
a. 9x +2
b. 2x +9
c. 9x – 2
d. 2x – 9
2. evaluate the expression 3m – 5 when m = 7.
a. 2
b. 16
c. 21
d. 18
3. simplify 4x+ 8y – 3x +2 y.
a. 12x – y
b. 11x + y
c. 6x + 5 y
d. x + 10y
4. factor 24p +64.
a. 24(p+ 40)
b. 12 (2p + 5)
c. 8( 3p + 8)
d. 3 (8p +21)
5. for problems 5 to 12, use properties of equality to solve the equation.
a. -30
b. 14
c. -14
d. 30
6. w – 8 = -12
a. -20
b. -4
c. 4
d. 20
7. 3q = 12
a. 4
b. 9
c. 15
d. 36
8. q/6 = 24
a. 4
b. 8
c. 30
d. 144
9. 3b – 9 =15
a. 8
b. 6
c. 2
d. -2
10. y/5 + 10 = -15
a. -125
b. -25
c. -5
d. -1
11. -3 (4-a)=6
a. -6
b. -2
c. 2
d. 6
12. 5(x+6)=45
a. 15
b. 3
c. -3
d. -15
13. brandon is bringing bottled water to a picnic. he has 4 full cases of bottles of water, and a bag with 8 more bottles. he has a total 104 bottles of water. write and solve an equation to find the number of bottles in each case.
a. x/4 + 8= 104; x= 384
b. x/4 – 8 = 104; x = 448
c. 4x +8 = 104; x = 24
d. 4x – 8 = 104; x=28
14. which is a solution of h > -6?
a. -10
b. -8
c. -6
d. -4
15. z- 4 > 9
a. z> -13
b. z > -5
c. z > 5
d. z > 13
16. z – 4 > 9
a. z> -13
b. z> -5
c. z> 5
d. z> 13
17. q + 7 < - 15
a. y< 3
b. y> 3
c. y< -3
d. y > -3
18. -3y > 9
a. y< 3
b. y > 3
c. y< -3
d. y> - 3
19. k/5 > -4
a. k > -20
b. k< -20
c. k > 20
d. k < 20
20. 4g – 8 < 20
a. g> 3
b. g< 3
c. g > 7
d. g< 7
21. v/-2 + 12 < 8
a. v > 8
b. v< 8
c. v > -8
d. v< -8
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Answers: 2
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1. translate the phrase “nine more than two times a number” into an algebraic expression.
a. 9...
a. 9...
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