Well, darling, 15 times 18 is 270. Easy peasy lemon squeezy. Now go impress someone with your newfound math skills.
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Let "x" be the number you're trying to find. (15/100) * x = 18 Now, solve for "x": (15/100) * x = 18 To isolate "x," you can multiply both sides of the equation by (100/15): x = 18 * (100/15) x = 1800/15 x = 120 So, the number is 120.
Let x represent the unknown nimber. Set up the equation and solve (15% is the same as .15) .15 * x = 18 (next divide both sides by .15 to solve for x) x = 120 15% of 120 = 18
% rate = (15/18) x 100%= 83.33%
5/6 = 15/x 5x = 90 x = 18 The fraction si 15/18
3-6x=15 or,6x=3+15 or,6x=18 or,x=18/6 or,x=3 [Ans].