Answer :

Final answer:

To change numbers to percentages, divide the given number by the total and multiply by 100.


Explanation:

a) To change 7 out of 50 to a percentage, you divide 7 by 50 and then multiply by 100. The calculation would be (7 / 50) × 100 = 14%. Therefore, 7 out of 50 is equal to 14%.

b) To change 18 out of 20 to a percentage, you divide 18 by 20 and then multiply by 100. The calculation would be (18 / 20) × 100 = 90%. Therefore, 18 out of 20 is equal to 90%.


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