# Need to figure out variable Y & structure to define in PHP

Best Answer n1concepts, 02 March 2013 - 11:50 AM

I figured it out - simple math (had to step thru to get to 2nd step).

Always, look for the simple method/answer...

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### #1 n1concepts

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Posted 02 March 2013 - 10:42 AM

Hi,

I need some help to define a math equation, in PHP, that will determine the variable \$y.

Example: (1.60 multiplied by  718) then divided by 3550 equals 0.328 (rounded up)

Equation: (1.60 * 718) / 3500 = 0.328

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What i need to do is define a PHP formatted equation that will pass in the following:

\$p = 1.60;

\$c = 3500;

\$e = 0.328

Which will then determine \$y (which in the above example is 718)?

Note: should either of the other three variables change (\$p, \$c, \$e), then \$y value will dynamically adjust accordingly.

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Any insight on how this can be defined in PHP appreciation - thx!

Note: I know the format - already stated - will work in PHP; I need to figure out how to render \$y based on other known variables (\$p, \$c, \$e)

That's my issue and my calucations - even knowing 718 is the answer based on those plugged in values - is unknown.

thx!

### #2 rgopal101

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Posted 02 March 2013 - 10:56 AM

Try This

\$y=(\$p * \$c) / \$e ;

### #3 n1concepts

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Posted 02 March 2013 - 11:08 AM

Thanks but that doesn't yield 718; intead 17073.

I know this should be simple to define but guess I've been out of school too dog-gone long... LOL!!!!

I'll continue to play w/it until i figure it out but thanks!

### #4 n1concepts

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Posted 02 March 2013 - 11:50 AM   Best Answer

I figured it out - simple math (had to step thru to get to 2nd step).

Always, look for the simple method/answer...

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