Question

How do you solve `\frac { y } { 9} = 8.1`?

Answer 1

`y=72.9`

Refer to the explanation for the process.

Explanation:

Solve:

`y/9=8.1`

Multiply both sides by `9`.

`9xxy/9=8.1xx9`

Cancel `9` on the left side.

`color(red)cancel(color(black)(9^1))xxy/color(red)cancel(color(black)(9^1))=8.1xx9`

Simplify.

`y=72.9`

Answer 2

`y=72.9`

Explanation:

We use inverse operations to isolate `y`

`y/9=8.1`

`<=>` Multiply both sides by `9`

`y=9(8.1)`

`<=>` `8.1` can be split up into `8+0.1`

`y=9(8+0.1)`

`<=>` Distribute `9`

`y=72+.9`

`<=>` Add the Terms

`y=72.9`