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Mathematics, 03.02.2020 05:52 Jessietorres5024

Need answers as soon as possible, will give brainiest and rate 5/5.

1: solve x/-3 = -15.

45
-45
5
-5

2: find the value of -7 + 3(-12) ÷ (-3).

-16
-19
-40
5

3: if f(n) = n^2 - n, then f(-4) is

-20
20
12
-12

4: which equation does not have the same solution as the others?

x/4 = 2
x - 9 = 17
x + 12 = 20
2x = 16

5: the solution to 2x - 5 = 27 is also a solution of which of the following equations?

3 + 5x = 58
3x - 2 = 31
2x + 3 = 35
27 - 2x = 5

6: find the value of -8 - 12 - (-20).

24
-40
16
0

7: evaluate -2x ^2y, if x = -3 and y = -1.

-12
-18
18
12

8: all of the following are equivalent except

x - (-2)
-2 + x
x - 2
x + (-2)

9: using the properties of equality to solve the equation -2b + 7 = -13, you would

add 13 and then divide by -2
add 13 and then add 2
subtract 7 and then add 2
subtract 7 and then divide by -2

10:
find the value of 6 + (-18) + (-13) + 9.

-14
-16
-46
-10

11: which of the following algebraic equations could represent the sentence, "the product of a number and five is 11"?

x + 5 = 11
x - 5 = 11
x/5= 11
5x = 11

12: which property of equality could be used to solve -3x = 348?

subtraction property
addition property
division property
multiplication property

13: evaluate -3^3.

-27
-9
9
27

14: solve x/2 - 3 = 7.

5
10
20
40

15: sarah's age is five less than twice her sister's age. sarah is fifteen years old.

which equation could you use to solve for the age of sarah's sister?

2x - 5 = 15
2(15) - 5 = x
15 = 5 - 2x
15 - 5 = 2x

16: solve x/-4 - (-8) = 12.

16
80
-80
-16

17: find the value of (-4)().

-178
168
178
-168

18: evaluate 16 - 20 - (-8) - 9.

-21
-5
-12
-1

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Answers: 1

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