document.write( "Question 254628: The perimeter of a triangle is 75 units. The sides have lengths a, b, and c. The ratio of b to a is 3:5, and the ratio of c to a is 7:5. Find the length of each side. \n" ); document.write( "
Algebra.Com's Answer #186946 by JimboP1977(311)\"\" \"About 
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a:b:c = 5:3:7\r
\n" ); document.write( "\n" ); document.write( "5z+3z+7z=75 where z is the common multiple.
\n" ); document.write( "15z=75
\n" ); document.write( "z=5\r
\n" ); document.write( "\n" ); document.write( "So a = 5*5 = 25
\n" ); document.write( " b = 3*5 = 15
\n" ); document.write( " c = 7*5 = 35
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