280 people call for room service. 177 people do not. What is the percentage?

61.3% called room service

38.7% did not

Step-by-step explanation:

To find the percentage of people that called room service, you must first find the total number of people. Find this by adding 280+177, which equals 457. Then, find what percent of 457 is 280. Do this by dividing part by whole, which looks like 280/457. Next, multiply this answer by 100 to get the percentage of 61.3%.

If you want to find what percent did not call room service, you can do this process again but with 177. The other option is to simply find 100-61.3%. All percentages sum to 100, so to find the missing percentage you can use subtraction. 100-61.3=38.7%.

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step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb