Question

20 POINTS FOR ANYONE TO ANSWER CORRECTLY
PLEASE HELP!!!!

Answer 1

We need to solve this by looking at each answer choice.

A.
`- (w)/(9)=8`

To solve for w, we need to multiply by -9 on both sides.

So,
`-(w)/(9) * -9 = 8 * -9\\\\w = -72`

This is not a positive solution. So eliminate A.

B.
`(-12) = (y)/((-3))`

To solve for y, we need to multiply by -3 on both sides.

So,
`(-12) * (-3) = (y)/((-3)) * (-3)\\\\y = 36`

This is a positive solution. This is one of our answers.

C.
`[tex]-4* (-5)/(2)= -(2)/(5)z* -(5)/(2)\\\\z = 10`[/tex]

We need to multiply by -5/2 on both sides to solve for z.

This is a positive solution. This is one of our answers.

D.
`(1)/(7)x = -2`

We need to multiply by 7 on both sides to solve for x.

So,
`(1)/(7) x * 7 = -2 * 7\\\\x = -14`

This is a negative solution. So this is not the answer.

So your final answer is B and C.

Answer 2

Lets solve this step by step. A is not a positive because (-9)*8=-72. B if positive because -12*(-3)=36. A negative times a negative is a positive. C is also a positive because (-2/5)*(-4) is a positive. D is not a positive because like A, one is negative and the other number is positive. A negative times a positive is a negative. I hope it helped!