document.write( "Question 1072492: Residential customers who heat their home with natural gas have their monthly bills calculated by adding a base service charge R5.19 per month and energy charge R51.91 cents per hundred m^3 write an equation for the monthly charge y in terms of x, the number of hundred of m^3 used
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Algebra.Com's Answer #687376 by Theo(13342)\"\" \"About 
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the currency looks like the south african rand.
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\n" ); document.write( "\n" ); document.write( "this is what i'm assuming when answering this question.\r
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\n" ); document.write( "\n" ); document.write( "the monthly charge is 5.19 rands per month plus 51.91 cents per cubic meter of gas.\r
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\n" ); document.write( "\n" ); document.write( "since 1 rand equals 51.91 cents, then 51.91 / 100 is equal to .5191 rands.\r
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\n" ); document.write( "\n" ); document.write( "the monthly charge is therefore 5.19 rands per month plus .5191 rands per cubic meter of gas.\r
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\n" ); document.write( "\n" ); document.write( "if you let y equal the monthly charge in rands, and x equals the number of cubic meters of gas used, then the formula becomes:\r
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\n" ); document.write( "\n" ); document.write( "y = 5.91 + .5191 * x\r
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