document.write( "Question 1032879: 3 times the age of Kofi is 4 more than the age of Yaw. In three years, the sum of their ages will b 70yrs, find their present age. \n" ); document.write( "
Algebra.Com's Answer #647465 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 3 times the age of Kofi is 4 more than the age of Yaw. In three years, the sum of their ages will b 70yrs, find their present age. \n" ); document.write( "--------- \n" ); document.write( "Equations: \n" ); document.write( "3K = Y + 4 \n" ); document.write( "K+3 + Y+3 = 70 \n" ); document.write( "---------- \n" ); document.write( "Substitute for \"K\" and solve for \"Y\":: \n" ); document.write( "(Y+4)/3 + 3 + Y+3 = 70 \n" ); document.write( "---- \n" ); document.write( "Y+4 + 9 + 3Y + 9 = 210 \n" ); document.write( "4Y + 22 = 210 \n" ); document.write( "4Y = 188 \n" ); document.write( "Y = 47 yrs \n" ); document.write( "------------------- \n" ); document.write( "----- \n" ); document.write( "3K = Y+4 \n" ); document.write( "K = (51/3) yrs = 17 yrs (Kofi's age now) \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------- \n" ); document.write( " |