document.write( "Question 409569: Four years ago Melina was twice as old as Phoebe. In four years, Phoebe will be three-fourths of Melina's age. Find Melina and Phoebe's ages now. \n" ); document.write( "

Algebra.Com's Answer #288267 by stanbon(75887) $\"\"$ $\"About$

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Four years ago Melina was twice as old as Phoebe. In four years, Phoebe will be three-fourths of Melina's age. Find Melina and Phoebe's ages now.
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\n" ); document.write( "Equations:
\n" ); document.write( "(m-4)= 2(p-4)
\n" ); document.write( "(p+4) = (3/4)(m+4)
\n" ); document.write( "---
\n" ); document.write( "Modify the 2nd equation:
\n" ); document.write( "4p+16 = 3m+12
\n" ); document.write( "-------------------------
\n" ); document.write( "Rearrange:
\n" ); document.write( "m-2p= -4
\n" ); document.write( "3m-4p= 4
\n" ); document.write( "-------------------
\n" ); document.write( "Modify:
\n" ); document.write( "3m-6p = -12
\n" ); document.write( "3m-4p = 4
\n" ); document.write( "----
\n" ); document.write( "Subtract and solve for \"p\":
\n" ); document.write( "2p = 16
\n" ); document.write( "p = 8
\n" ); document.write( "-----
\n" ); document.write( "Solve for \"m\":
\n" ); document.write( "m-2p = -4
\n" ); document.write( "m -2*8 = -4
\n" ); document.write( "m -16 = -4
\n" ); document.write( "m = 12
\n" ); document.write( "----------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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