Math ..............................................................................?

Question

$650,000 is the result of a 45% increase, what was the number before the increase?
Should fit into this equation:
(650,000 -x) / x = .45 ?

I think it's around 448,000 but I cant pinpoint it ! lol

OMG you're right! I feel so stupid. Thanks.

Answer 1

Write it as
x * 1.45 = 650,000

x = 650,000 / 1.45

Answer 2

Hope i can make this sound a bit easier for you

You oringinally had 100% but now you have 145% because you had a 45% increase.

After increase

145% = $650,000

Always find one percent, by dividing through by the new percentage

1% = 650,000 / 145

To get the percentage you require, just multiply up.

So, 100% = (650,000 / 145)*100

You originally had 100% which is $448275.86

Hope that helps a little

Answer 3

I'm not sure if your equation would work, but I know the following will:
650,000 = x + .45x
The end result is the beginning number plus its 45% increase.

Hope this makes sense. Good Luck.

Answer 4

$448275.86
An easier way to write the equation is x+.45X = 650,000. Then, 1.45x = 650,000 and x = 650,000/1.45

Answer 5

The equation should read:
x + .45x = 650,000

Solving for x:
1.45x = 650,000
x = 650,000 / 1.45
x = 448,276

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**Always** Check your answer:
448,276 * 45% = 201,724
448,276 + 201,724 = 650,000

Good luck in your algebra class!

Answer 6

let the oroginal number be X
increased number = 650000
therefore increase in number = 650000 - X
AND increase % = 45%

NOW using formula : increase % = ( Increase/Original ) *100
we get...
45 = [(650000-X) / X ] * 100
45/100 = (650000-X) / X (after cross multilying 100 to RHS )

HENCE PROVED
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Answer 7

Mitch is right, that should be the proper way to do this kind of problem

Answer 8

im not sure but i think its 650,000=x+[(x)(0.45)]