which expression is equivalent to −12+(−45)+31 and includes the correct justification for the equivalence?


a
−12+(−45)+1555 by the additive inverse property
b
−12+31+(−45) by the commutative property
c
(−45)+(−12)+31 by the associative property
d
−12+31+(−0.8) because the opposite of a sum is the sum of its opposites.

I belive that the answer is D.

Step-by-step explanation:

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

1. x> -5

2. x< 8

step-by-step explanation:

1. 2x> -10

divide by 2 from both sides of equation.

2x/2> -10/2

simplify, to find the answer.

-10/2=-5

x> -5 is the correct answer.

2. 3x< 24

divide by 3 from both sides of equation.

3x/3< 24/3

simplify, to find the answer.

24/3=8

x< 8 is the correct answer.

i hope this you, and have a wonderful day!