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Math PS Question - Help

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by theldot » Wed Jan 04, 2012 7:50 pm
I am doing something wrong here.

Can someone help and explain?

If the sale price of a television is $216 after a 10% reduction was made, what was the regular price of the television?

I was setting up the formula as follows:
216=x + .10X
216=1.10x
Dividing by 1.10 is giving me the incorrect value.

What am I doing wrong here?
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by Anurag@Gurome » Wed Jan 04, 2012 8:07 pm
theldot wrote:I am doing something wrong here.

Can someone help and explain?

If the sale price of a television is $216 after a 10% reduction was made, what was the regular price of the television?

I was setting up the formula as follows:
216=x + .10X
216=1.10x
Dividing by 1.10 is giving me the incorrect value.

What am I doing wrong here?
Let the regular price of television = $X
Then, price after 10% reduction = X - 10% of X = X - 0.1X = 0.9X
So, 0.9X = 216
X = 240

Therefore, the regular price of television = [spoiler]$240[/spoiler]
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by karthikpandian19 » Wed Jan 04, 2012 9:14 pm
Reduction is the term used, hence you shld do subtract instead of adding 0.1

216=x - .10X
216=0.9x
theldot wrote:I am doing something wrong here.

Can someone help and explain?

If the sale price of a television is $216 after a 10% reduction was made, what was the regular price of the television?

I was setting up the formula as follows:
216=x + .10X
216=1.10x
Dividing by 1.10 is giving me the incorrect value.

What am I doing wrong here?
Top
Join the discussion
Log in to postLogin with Googleuse password
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