# P2 Math 8. Chapter 1 Quiz. Sept 10 2015

10 Questions | Total Attempts: 63

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• 1.
"Isolating the variable" in an equation means to cancel it out of the equation - to eliminate it from the equation.
• A.

True

• B.

False

• 2.
Solve for c.  5 - c = 10 - 2
• A.

-5

• B.

-3

• C.

-8

• D.

-2

• 3.
2d - 15  = 3The next step in solving this equation,  could be:
• A.

2d = -18

• B.

2d = 18

• C.

15 = 2d +3

• D.

2d = -12

• 4.
Solve the equation.  -3(n +6) +10 = -8n=?
• A.

0

• B.

1

• C.

2

• D.

3

• 5.
The sum of three angles of any triangle is 180 degrees. If the the angles degrees are:1.  742.  (2x+7)3.   xWhat is the value of x?
• A.

99/3 (99 divided by 3)

• B.

9.9

• C.

180 - 81

• D.

60

• 6.
Solve the equation. Find the value of x for:  2(4x-16) - 5x = -5
• A.

30/3 (30 divided by 3)

• B.

35

• C.

27/3 (27 divided by 3)

• D.

16/4 (16 divided by 4)

• 7.
The equation R = 10A - 20 represents the revenue R (in dollars) you make by spending A (that's the variable A in the equation) dollars on advertising.  If your revenue totaled \$110, how much did you spend on advertising?
• A.

110

• B.

-11

• C.

10 times 13

• D.

13

• 8.
Solve the equation. -14 = x - 12x = ?
• A.

26

• B.

-26

• C.

2

• D.

-2

• 9.
After combining "like terms", the equation 5a - 6 - 2a = 12 is equal to:
• A.

7a - 6 = 12

• B.

-6 - 2a = 12 - 5a

• C.

3a - 6 = 12

• D.

5a - 4 = 12

• 10.
Simplify the expression. (9 - m)  + 4m + 7hint: combine like terms...
• A.

9 + 5m + 7

• B.

2 - 5m

• C.

16 - 3m

• D.

16 + 3m

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