document.write( "Question 83463This question is from textbook
\n" ); document.write( ": Sum of the present ages of Angie and her moether is 64 years. In eight years Angie will be three-fifths as old as her moether at that time. Find the present ages of Angie and her mother. \n" ); document.write( "
Algebra.Com's Answer #59971 by ankor@dixie-net.com(22740)\"\" \"About 
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Let A = Angie's present age; M = Mom's present age
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\n" ); document.write( "Write an equation for each sentence:
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\n" ); document.write( "\"Sum of the present ages of Angie and her mother is 64 years.\"
\n" ); document.write( " A + M = 64
\n" ); document.write( " A = 64 - M; use for substitution later
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\n" ); document.write( " \"In eight years Angie will be three-fifths as old as her mother at that time.\"
\n" ); document.write( "(A + 8) = .6(M + 8)
\n" ); document.write( "A + 8 = .6M + 4.8
\n" ); document.write( "A = .6M + 4.8 - 8
\n" ); document.write( "A = .6M - 3.2
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\n" ); document.write( "Find the present ages of Angie and her mother.
\n" ); document.write( "Substitute (64-M) for A in the above equation:
\n" ); document.write( "64 - M = .6M - 3.2
\n" ); document.write( "-M - .6M = - 3.2 - 64
\n" ); document.write( "-1.6M = -67.2
\n" ); document.write( "M = -67.2/-1.6
\n" ); document.write( "M = +42 yrs old
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\n" ); document.write( "Find A: 64 - 42 = 22 yrs old
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\n" ); document.write( "Check using the statement:
\n" ); document.write( "\"In eight years Angie will be three-fifths as old as her mother at that time.\"
\n" ); document.write( "(22 + 8) = .6(42 + 8)
\n" ); document.write( " 30 = .6(50) proves our solutions
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