rewrite equation. x/.1x=5000

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fatbrad

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Sep 10, 2007
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I'm stumped, it's been too many years.

how do I rewrite the equation x/.1x=5000 in order to solve for x?

thanks,
BRAD[/list]
 
Since x/x = 1, your "equation" reduces to "1/0.1 = 5000", or "10 = 5000", which clearly isn't true. :shock:

Please post the full exercise, the complete instructions, and all of your work so far. Thank you! :D

Eliz.

:arrow: P.S. Welcome to FreeMathHelp! 8-)
 
fatbrad said:
I'm stumped, it's been too many years.

how do I rewrite the equation x/.1x=5000 in order to solve for x?

thanks,
BRAD[/list]
Click to expand...

Is it

x/0.1 x =5,000 which is equivalent to

(x/0.1) x =5,000 which is equivalent to

x^2 = 500 etc.??
 
The full problem is:

Over the past year, price inflation has been 10%, but the price of a new air compressor has fallen from $6000 to $5000. The REAL price of a new air compressor has fallen by what percentage?

Using some equations for Consumer Price Index (CPI) to Real price...
The equation for finding the real price is:

REAL Price [year2] = (CPI [year1]/CPI [year2]) * Nominal Price [year 2]


So... me just plugging in numbers.

RP= x/0.1x * 5000


Did I say x/0.1x =5000 before? That was wrong.

so i can do this?
1/5000 = x/0.1x

x/x(1/5000) = x/x(1/0.1)

x/5000x = 1/0.1

x/5000x = 10

ugghhh. i think i'm back to 5000=10. Not true.


... still stumped.
 
MAYBE i've got it.

RP=CPI1/CPI2 * NP2

RP = 1x/1.1x * 5000

RP= 1/1.1 * 5000

RP~ .91 * 5000

RP ~ 4550

%change = 1-(4550/6000)

%change = 1-(0.758)

%change=.242

%change=.24

%change= 24%
 
fatbrad said:
Over the past year, price inflation has been 10%, but the price of a new air compressor has fallen from $6000 to $5000. The REAL price of a new air compressor has fallen by what percentage?

Using some equations for Consumer Price Index (CPI) to Real price...
The equation for finding the real price is:

REAL Price [year2] = (CPI [year1]/CPI [year2]) * Nominal Price [year 2]
Click to expand...
How do the listed values relate to the posted equation? I think you're trying to find the price in constant dollars (because the lower price includes the ongoing inflation, and you're wanting a "real" comparison with the original price), but I don't see how the listed variables relate. (We can help with the math, but you'll need to explain the industry-specific stuff.)

Please clarify. Thank you! :D

Eliz.
 
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