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

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Answer 1 · 2017-08-01T00:50:48

#y=72.9#

Refer to the explanation for the process.

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 · 2017-08-01T00:53:35

#y=72.9#

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#