40% of $90= 40% * 90= 0.4 * 90= $36
-40 - 90 = -130
40 + 90 = 130
40
90*40= 3600
40% = 0.4 Therefore, 40% off $90= $90 - (0.4 x $90) = $54
To find 90% of 40, just multiply .90 times 40, which equals 36. Since 10% of 40 is 4, then 90% of 40 are 4*9=36.
40% of 90 is 36! hope it helps. :)
Least common multiple of 40 and 90 is 360.
40 x 90 = 3,600
90%
40/90 = 4/9 = 0.44444.