document.write( "Question 93543: I have tried 3 different algebra tutors, to no answer. Suppose a cost benefit model is given by y= 2845 over 100-x . Where y is the cost for removing x percent of a given a pollutant can be removed for $23,000? Choices are: 114.1%, 89%, 8.9%, 447% \n" ); document.write( "

Algebra.Com's Answer #422731 by sap4114u(1) $\"\"$ $\"About$

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23,000=2845x/(100-x)\r
\n" ); document.write( "\n" ); document.write( "(100-x)23,000 2845x/(100-x) (100-x) multiply 100-x from both sides of equation\r
\n" ); document.write( "\n" ); document.write( "23,000(100-x)=2845x notice it cancels out on the right side of the equation\r
\n" ); document.write( "\n" ); document.write( "2,300,000-23,000x=2845x combine like terms by adding 23,000x from both sides.\r
\n" ); document.write( "\n" ); document.write( "2,300,000-23,000x =2845x
\n" ); document.write( "When you add a +23,000 a -23,000 you get 0. when you add a +23,000 to 2845 you get the following. 2,300,000 = 25,845x\r
\n" ); document.write( "\n" ); document.write( "2,300,000/25,845x=25,845x/25,845x divide 25,845 from both sides to get \"x\"
\n" ); document.write( "x=88.99% or 89%
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