document.write( "Question 160981: The Wheel shop sells other kinds of vehicles. There are bicycles and go-carts in a different room of the shop. Each bicycle has only one seat and each go-cart has only one seat. There are a total of 21 seats and 54 wheels in that room. Bicyle has 2 wheels and go-carts have 4 wheels. How many bicycles and how many are go-carts? \n" ); document.write( "

Algebra.Com's Answer #118635 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"BC%2BGC=21\"$ -----------------> EQN 1
\n" ); document.write( "We get $\"BC=21-GC\"$ ----------> EQN 2
\n" ); document.write( "Also,
\n" ); document.write( " $\"2BC%2B4GC=54\"$ ---------------> EQN 3: 2 wheels for BC, & 4 wheels for GC = 54 wheels
\n" ); document.write( "Subst. EQN 2 in EQN 3:
\n" ); document.write( " $\"2%2821-GC%29%2B4GC=54\"$
\n" ); document.write( " $\"42-2GC%2B4GC=54\"$
\n" ); document.write( " $\"2GC=54-42=12\"$
\n" ); document.write( " $\"cross%282%29GC%2Fcross%282%29=cross%2812%296%2Fcross%282%29\"$
\n" ); document.write( " $\"highlight%28GC=6%29\"$ , Number of Go Carts
\n" ); document.write( "Go back EQN 2:
\n" ); document.write( " $\"BC=21-6\"$
\n" ); document.write( " $\"highlight%28BC=15%29\"$ , Number of Bicycles
\n" ); document.write( "Check via EQN 3:
\n" ); document.write( " $\"2%2A15%2B4%2A6=54\"$
\n" ); document.write( " $\"30%2B24=54\"$
\n" ); document.write( " $\"54=54\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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