Question

Please help with 5,6,8, and 10

Answer 1

5. 120% is the same as 1.2 (from the percentage symbol go to places to the left and place a decimal). So we do:

5x + 5x(1.2)

Simplify to get:

5x + 6x = 11x

6. 7z - 1/3(7z)

Simplify the equation to get:


`7z - (7)/(3) z`

Rewrite as:


`(21)/(3)z - (7)/(3) z` and combine like terms to get
`(14)/(3) z`

8.
`(3)/(4)v - 6( (2)/(9)y)`

Rewrite as:


`(3)/(4) v - (12)/(9)y`

And simplify to get:


`(3)/(4)v - (4)/(3)y`

10.
`2x + (2)/(3)x + 5 + 11 - x`

Combine like terms:


`x + (2)/(3)x + 16` which becomes
`(3)/(3)x + (2)/(3) x + 16`

Do it again and get your answer:


`(5)/(3)x + 16`