document.write( "Question 1128521: A wealthy businessman owns a complex which contains 30 apartment. He gets paid R3 000 per month for renting out a two-bedroom apartment and R5 000 per month for renting out a three-bedroom apartment. He collects R106 000 in rent at the end of each month. How many of each type of apartments are in the complex?. \n" ); document.write( "

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A wealthy businessman owns a complex which contains 30 apartment. He gets paid R3 000 per month for renting out a two-bedroom apartment and R5 000 per month for renting out a three-bedroom apartment. He collects R106 000 in rent at the end of each month. How many of each type of apartments are in the complex?.
\n" ); document.write( "-----
\n" ); document.write( "Equations:
\n" ); document.write( "Let \"x\" be the number of 2-bedroom apartments.
\n" ); document.write( "Let \"y\" be the number 3-bedroom apartments.
\n" ); document.write( "Quantity:: x + y = 30 apartments
\n" ); document.write( "Rent Value:: 3000x + 5000y = 106000
\n" ); document.write( "-----
\n" ); document.write( "Modify to solve for \"x\"::
\n" ); document.write( "5000x + 5000y = 5000*30
\n" ); document.write( "3000x + 5000y = 106000
\n" ); document.write( "--------------------------
\n" ); document.write( "Subtract and solve for \"x\"::
\n" ); document.write( "2000x = 44000
\n" ); document.write( "x = 22 (# of 2-bedroom apartments)
\n" ); document.write( "y = 30-x = 8 (# of 3-bedroom apartments)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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