document.write( "Question 219958: Miriam is four years older than Ricardo. Ten years ago, Miriam was 3 times as old as Ricardo was then. How old are they now? Set up an equation and solve.\r
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Algebra.Com's Answer #165277 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Let m = Mariam's present age
\n" ); document.write( "Let r = Ricardo's present age
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\n" ); document.write( "Write an equation for each statement:
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\n" ); document.write( "\"Miriam is four years older than Ricardo.\"
\n" ); document.write( "m = r + 4
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\n" ); document.write( "\" Ten years ago, Miriam was 3 times as old as Ricardo was then. \"
\n" ); document.write( "m - 10 = 3(r - 10)
\n" ); document.write( "m - 10 = 3r - 30
\n" ); document.write( "m = 3r - 30 + 10
\n" ); document.write( "m = 3r - 20
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\n" ); document.write( "Substitute (r+4) for m in the above equation
\n" ); document.write( "r + 4 = 3r - 20
\n" ); document.write( "4 + 20 = 3r - r
\n" ); document.write( "24 = 2r
\n" ); document.write( "r = \"24%2F2\"
\n" ); document.write( "r = 12 yr is R's present age
\n" ); document.write( "then
\n" ); document.write( "m = 12 + 4
\n" ); document.write( "m = 16 is M's present age
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\n" ); document.write( "Check solution in the statement:
\n" ); document.write( "\" Ten years ago, Miriam was 3 times as old as Ricardo was then.\"
\n" ); document.write( "16 - 10 = 3(12 - 10)\r
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