Posted by tom on .
9/10Y = 36
What is Y

algebra 
Ms. Sue,
9/10Y = 36
Y = 36/(9/10)
Y = 36 * (10/9)
Y = 360/9
Y = ? 
algebra 
Bosnian,
The answer of Ms,Sue is wrong.
9 / 10 Y = 36 Multiply both sides with 10 Y
9 = 36 * 10 Y
9 = 360 Y Divide both sides with 9
1 = 40 Y Divide both sides with 40
1 / 40 = Y
Y = 1 / 40
Y = 0.025 
Ms Sue is right  algebra 
Reiny,
tom wrote
9/10y=36
according to the order of operations,
we only divide by 10 or else Tom should have said
9/(10y) = 36
so Ms Sue took it exactly the way it was written and her answer is correct.