document.write( "Question 765616: can u tell me if sp =5445 after discount of 5% discount how to find the cp \n" ); document.write( "
Algebra.Com's Answer #466283 by Theo(13342)\"\" \"About 
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i'm presuming sp is the sale prce and cp is the cost price.
\n" ); document.write( "sp = 5445 after 5% discount.
\n" ); document.write( "sp = cp - .05 * cp
\n" ); document.write( "use the distributive law to make this equation equal to:
\n" ); document.write( "sp = cp * (1 - .05) which becomes:
\n" ); document.write( "sp = cp * .95
\n" ); document.write( "solve this equation for cp.
\n" ); document.write( "divide both equations by .95 to getr:
\n" ); document.write( "sp / .95 = cp
\n" ); document.write( "since sp = 5445, this equation becomes:
\n" ); document.write( "5445 / .95 = cp
\n" ); document.write( "solve for cp to get:
\n" ); document.write( "cp = 5445 / .95 = 5731.578947
\n" ); document.write( "working backwards to see if this is correct, you get:
\n" ); document.write( "sp = cp - .05 * cp which becomes:
\n" ); document.write( "5445 = 5731.578947 - .95 * 5731.578947 which becomes:
\n" ); document.write( "5445 = 5445, confirming the solution is correct.\r
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