104
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1 x 52, 2 x 26, 4 x 13.
100% of 52=52 10% of 52 (divide by 10)=5.2 1% of 52 (divide by 10)=.52 2% of 52 (multiply the 1% by 2)=1.04
1) x*y=315 2) x+y=52 from 2, x=52-y, put into 1, y*(52-y) = 315 or y^2-52*y+315=0 delta= (-52)^2-4*1*315=1444 = 38^2 y = (52-38)/2 = 7 or y = (52+38)/2 = 45 then x = 45 or x = 45
2 x 2 x 13 = 52
2 x 2 x 13 = 52