Question

Which two charges have a sum of 0?

+6 charge and +6 charge

-6 charge and -6 charge

+6 charge and -6 charge

2. Where is the number 4 - 8 located on a horizontal number line?

4 units to the left of 4

4 units to the right of 4

8 units to the left of 4


3. Simplify 7 + (-3)

-10

-4

4


5 which fraction is equivalent to -1/6

6/-1

-6/1

1/-6


4. Simplify (4.5)(5)(-2)

45

4.5

-45


6. Which expression is equivalent to 2(m- 5) + 6

2m - 1

2m + 22

2m - 4

Answer 1

Question: +6 charge and -6 charge

Question 2: 8 units to the left of 4

(4 - 8 = -4 and 8 units left is -4)

Question 3: 4

(7 +(-3) is essentially 7-3 which equals 4 because negative takes over the positive)

Question 5: 1/-6

(it doesn't matter if the negative symbol is on top or bottom, numerator or denominator just the numbers have to stay in the same place)

Question 4: -45

(4.5 times 5 is 22.5, and 22.5 times -2 is -45, the negative takes over the positive)

Question 6: 2m-4

( 2(m-5) +6

distribute first

2 times m = 2m

2 times -5 = -10

so now you have 2m - 10 + 6

combine like terms to get 2m - 4

(-10 + 6 = -4)