document.write( "Question 1061900: The cost for 2 adults and 5 children to eat is $45.50. 1 adult and 1 child is $15. How much os a childs meal? \n" ); document.write( "

Algebra.Com's Answer #676662 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = the cost of an adult's meal
\n" ); document.write( "Let $\"+b+\"$ = the cost of a child's meal
\n" ); document.write( "------------------------------------
\n" ); document.write( "(1) $\"+2a+%2B+5b+=+4550+\"$ ( in cents )
\n" ); document.write( "(2) $\"+a+%2B+b+=+1500+\"$ ( in cents )
\n" ); document.write( "------------------------------------
\n" ); document.write( "Multiply both sides of (2) by $\"+2+\"$
\n" ); document.write( "and subtract (2) from (1)
\n" ); document.write( "(1) $\"+2a+%2B+5b+=+4550+\"$
\n" ); document.write( "(2) $\"+-2a+-+2b+=+-+3000+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( " $\"+3b+=+1550+\"$
\n" ); document.write( " $\"+b+=+516.67+\"$ cents
\n" ); document.write( " $\"+b+=+5.17+\"$ dollars
\n" ); document.write( "and
\n" ); document.write( "(2) $\"+a+%2B+b+=+1500+\"$
\n" ); document.write( "(2) $\"+a+=+1500+-+516.67+\"$
\n" ); document.write( "(2) $\"+a+=+983.33+\"$ cents
\n" ); document.write( "(2) $\"+a+=+9.83+\"$
\n" ); document.write( "----------------------------
\n" ); document.write( "A child's meal is $5.17
\n" ); document.write( "----------------------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+2a+%2B+5b+=+45.5+\"$ ( in dollars )
\n" ); document.write( "(1) $\"+2%2A9.83+%2B+5%2A5.17+=+45.5+\"$
\n" ); document.write( "(1) $\"+19.66+%2B+25.85+=+45.52+\"$
\n" ); document.write( "error due to rounding off, I think
\n" ); document.write( "Check my math and maybe get another opinion, too
\n" ); document.write( " \n" ); document.write( "

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