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IgorLugansk [536]
2 years ago
10

What number is 15% of 43

Mathematics
1 answer:
Annette [7]2 years ago
7 0

Step-by-step explanation:

So when a question asks what is x% of the y number. It's asking you to convert the x into decimal form by dividing by 100 and then multiply it by y. This gives you the equation: y * \frac{x}{100} which gives you x% of y. so 15% of 43 is 43 * \frac{15}{100} = 6.45. 43% of 300 is 300 * \frac{43}{100} = 129.

the 12% of what number is 43 is a bit more tricky. It's asking you to instead find a number in which 12% of it is equal to 43. So instead of plugging solving for the percentage (which is already given) you solve for y. This gives you the following equation: y * \frac{12}{100} = 43. Now all you do is calculate 12/100 which gives you y * 0.12 = 43. now divide both sides by 0.12 to solve for y. This gives you y = 358.\overline{33}

43 is what percent of 106? This question is also a bit tricky, but instead of solving for y, you're solving for x. So plug in the known values, which gives you the equation: 106 * \frac{x}{100} = 43. Divide both sides by 106 to get \frac{x}{100} \approx 0.406 and now multiply both sides by 100. this gives you x \approx 40.57 which is the answer 40.57%

What percent of 43 is 6. This is asking the same thing just in a different way. So percentage = unknown, entire number = 43, entire number * percentage = 6. With these values we get the equation: 43 * \frac{x}{100} = 6. Divide both sides by 43 to get \frac{x}{100} \approx 0.140 now multiply by 100 to get x \approx 13.95 which is the answer 13.95%

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