document.write( "Question 296379: Could you please help me on this word problem:
\n" ); document.write( "The Rocket Coaster has 15 cars, some that hold 4 people and some that hold 6 people. There is room for 72 people altogether. How many 4-passenger cars are there? How many 6 passenger cars are there? \n" ); document.write( "

Algebra.Com's Answer #213561 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
The Rocket Coaster has 15 cars, some that hold 4 people and some that hold 6 people. There is room for 72 people altogether. How many 4-passenger cars are there? How many 6 passenger cars are there?
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\n" ); document.write( "Equations:
\n" ); document.write( "Cars Eq:::: f + s = 15 cars
\n" ); document.write( "Chairs Eq:: 4f +6s = 72
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\n" ); document.write( "Multiply thru 1st equation by 4:
\n" ); document.write( "4f + 4s = 60
\n" ); document.write( "4f + 6s = 72
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\n" ); document.write( "Substract 1st from 2nd and solve for s:
\n" ); document.write( "2s = 12
\n" ); document.write( "s = 6 (# of 6-passenger cars)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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