SOLUTION: A certain number when raised by 130% gives 754. What is the number? Answer key shows x(130%) = 754 x = 580 Others answered it as x + 130x/100 = 754 2.3x = 75

Algebra ->  Expressions-with-variables -> SOLUTION: A certain number when raised by 130% gives 754. What is the number? Answer key shows x(130%) = 754 x = 580 Others answered it as x + 130x/100 = 754 2.3x = 75      Log On


   

Question 1161330: A certain number when raised by 130% gives 754. What is the number?

Answer key shows
x(130%) = 754
x = 580

Others answered it as
x + 130x/100 = 754
2.3x = 754
x = 327.83

Explain why the other answer is incorrect
Found 2 solutions by solver91311, Alan3354:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The second (and very wrong) solution in plain language is:

One hundred percent of a number plus one hundred and thirty percent of the number is seven hundred and fifty-four. So that is an increase of two hundred and thirty percent.

The second method would have worked if:








John

My calculator said it, I believe it, that settles it

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A certain number when raised by 130% gives 754. What is the number?
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The problem is poorly stated which makes it ambiguous.
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If it said: A certain number, when increased by 130% of the number, gives 754. What is the number?
---> 754/(n + 1.3n)
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If it said: 130% of a number is 754. What is the number?
1.3n = 754
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"raised by" is not clear.