document.write( "Question 294640: five hot dogs and four burgers cost 14.75$. four hot dogs and 5 burgers cost 14.50$. Find the cost of one hot dog and the cost of one burger
\n" ); document.write( "5h+4b=14.75
\n" ); document.write( "4h+5b=14.50
\n" ); document.write( "First impression is to add them
\n" ); document.write( "9h+9b= 29.25
\n" ); document.write( "9(h+b)=29.25
\n" ); document.write( "h+b=29.25/9
\n" ); document.write( "but this makes no sense
\n" ); document.write( "Any help is greatly appreciated
\n" ); document.write( "

Algebra.Com's Answer #212424 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
five hot dogs and four burgers cost 14.75$. four hot dogs and 5 burgers cost 14.50$. Find the cost of one hot dog and the cost of one burger
\n" ); document.write( "5h+4b=14.75
\n" ); document.write( "4h+5b=14.50
\n" ); document.write( "First impression is to add them
\n" ); document.write( "----------------------------------------
\n" ); document.write( "The objective is to eliminate one of the variables.
\n" ); document.write( "----
\n" ); document.write( "To get rid of the \"h\" terms, multiply 1st equation by 4
\n" ); document.write( "and 2nd equation by 5 to get:
\n" ); document.write( "----
\n" ); document.write( "20h + 16b = 4*15.75
\n" ); document.write( "20h + 25b = 5*14.50
\n" ); document.write( "--------------------------
\n" ); document.write( "Now, SUBTRACT the 1st Eq. from the 2nd and solve for \"b\":
\n" ); document.write( "9b = 5*14.5 - 4*15.75
\n" ); document.write( "9b = 9.5
\n" ); document.write( "b = $1.06
\n" ); document.write( "----------------
\n" ); document.write( "To solve for \"h\", substitute b=1.06 into either of the original equations.
\n" ); document.write( "5h+4b=14.75
\n" ); document.write( "5h + 4(1.06) = 14.75
\n" ); document.write( "5h = 14.75-4.24
\n" ); document.write( "5h = 12.51
\n" ); document.write( "h = $2.50
\n" ); document.write( "===============
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );