Question 4

Show how to find each amount:

Make a ratio table. Whatever you do to the left you do to the right.

4 a: Find 10% of 25

I first divided 100 by 10 and equals to 10. Whatever I do to the left I do to the right. So I divided 25 by ten it gave me 2.5. 10% of 25 is 2.5.

4 b: Find 25% of 84

I first divided 100 by 4 and equals to 25. Whatever I do to the left I do to the right. So I divided 84 by 4 and equals to 21. 25% of 84 is 21.

4 c: Find 50% of 98

I first divided 100 by 2 and equals to 50. Whatever I do to the left I do to the right. So, I divided 98 by 2 it equals to 49. 50% of 98 is 49.

4 d: Find 75% of 124

I first divided 100 by 4 equals to 25. Then I multiplied 25 by 3 which equals to 75. Whatever I do to the left I do to the right. So, I divided 124 by 4 equals to 31. Then I multiplied 31 by 3 equals to 93. 75% of 124 is 93.

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Here's a video on how to calculate a percentage.