One-third of Derick's age two years ago is equal to a quarter of his age four years from now. How old is he now?
Please provide the following:
Math - drwls, Saturday, March 9, 2013 at 10:45pm
Let x = Derick's age now.
(x-2)/3 = (x+4)/4
Solve for x.
4(x-2) = 3(x+4)
x = 12+8 = 20
Two years ago he was 18. 1/3 of that is 6
Four years from now he is 24. 1/4 of that is also 6.
Math - KALA, Wednesday, December 9, 2015 at 8:17pm
Factorize 2x2square+8x - 10=0