percentage = 16.67%
% rate:
= 5/30 * 100%
= 0.1667 * 100%
= 16.67%
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5% of 30 = 1.5 = 5% * 30 = 5%/100% * 30 = 0.05 * 30 = 1.5
At least 2 ways to do this problem. First- of means to multiply, percent converts to a decimal by moving th understood decimal to the left 2 places. So .... .05 x 30 = 1.5 Second --- Use a proportion. The saying: Is over of equals percent over 100. Think of rewording the problem: What is 5 percent of 30? x / 30 = 5 / 100 ..... now cross multiply and solve for x 100 x = 5(30) x = 5(30)/100 = 1.5
6
19 over 5 as a percent = 380%
5 percent of 30 gallons = 1.5 gallo ns = 5% of 30 gallo ns = 0.05 * 30 = 1.5 gallo ns