Question

Which expressions are equivalent to − 90 − 60 w −90−60wminus, 90, minus, 60, w? Choose 3 answers: Choose 3 answers: (Choice A) A − 30 ( 3 + 2 w ) −30(3+2w)minus, 30, left parenthesis, 3, plus, 2, w, right parenthesis (Choice B) B ( − 9 − 6 w ) ⋅ 10 (−9−6w)⋅10left parenthesis, minus, 9, minus, 6, w, right parenthesis, dot, 10 (Choice C) C − 3 ( 30 − 20 w ) −3(30−20w)minus, 3, left parenthesis, 30, minus, 20, w, right parenthesis (Choice D) D ( 6 + 4 w ) × 15 (6+4w)×15left parenthesis, 6, plus, 4, w, right parenthesis, times, 15 (Choice E) E − 20 ( 4.5 + 3 w ) −20(4.5+3w)minus, 20, left parenthesis, 4, point, 5, plus, 3, w, right parenthesis

Answer 1

a, b ,e

Explanation:

Answer 2

Option A,B,E are equivalent.

Explanation:

Given : Expression
`-90-60w`

To find : Which expressions are equivalent to given expression ?

Solution :

We solve the expression and check,

A)
`-30(3+2w)`

`-30(3+2w)=-90-60w`

Yes it is equivalent.

B)
`(-9-6w)10`

`(-9-6w)10=-90-60w`

Yes it is equivalent.

C)
`-3(30-20w)`

`-3(30-20w)=-90+60w`

No it is not equivalent.

D)
`(6+4w)15`

`(6+4w)15=90+60w`

No it is not equivalent.

E)
`-20(4.5+3w)`

`-20(4.5+3w)=-90-60w`

Yes it is equivalent.

Therefore, Option A,B,E are equivalent.