document.write( "Question 158901: 18 boys bought drinks.
\n" ); document.write( "Some chose apple juice that was 22p per glass and others chose orange juice at 24p per glass the total cost of the drinks was £4.08
\n" ); document.write( "How many chose apple juice and how many chose orange juice \n" ); document.write( "
Algebra.Com's Answer #117045 by ankor@dixie-net.com(22740)\"\" \"About 
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18 boys bought drinks.
\n" ); document.write( "Some chose apple juice that was 22p per glass and others chose orange juice at 24p per glass the total cost of the drinks was £4.08
\n" ); document.write( "How many chose apple juice and how many chose orange juice
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\n" ); document.write( "I don't know how many pence in a pound, but here are the equations:
\n" ); document.write( ":
\n" ); document.write( "x = no. of apple juice drinks
\n" ); document.write( "y = no. of orange juice drinks
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\n" ); document.write( "Total no. of drinks equation
\n" ); document.write( "x + y = 18
\n" ); document.write( "y = (18-x); you can use this for substitution in the total cost equation
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\n" ); document.write( "Total cost equation:
\n" ); document.write( "22x + 24y = 4.08
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\n" ); document.write( "Is it 12 pence in a shilling and 20 shillings in a pound? (21 shillings in a guinea)
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