Question

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Explanation:

Problem 4: 50% of 70

Step1: Convert percent to fraction

To find 50% of 70, first convert 50% to a fraction. Since percent means "per hundred", 50% is $\frac{50}{100}$.

Step2: Multiply by the number

Now multiply this fraction by 70. So we have $\frac{50}{100} \times 70$. Simplify $\frac{50}{100}$ to $\frac{1}{2}$, then $\frac{1}{2} \times 70 = 35$.

Step1: Convert percent to fraction

80% as a fraction is $\frac{80}{100}$.

Step2: Multiply by the number

Multiply $\frac{80}{100}$ by 500. $\frac{80}{100} \times 500 = 80 \times 5 = 400$ (because 500 divided by 100 is 5, then 80 times 5 is 400).

Step1: Convert percent to fraction

75% is $\frac{75}{100}$.

Step2: Multiply by the number

Multiply $\frac{75}{100}$ by 80. Simplify $\frac{75}{100}$ to $\frac{3}{4}$, then $\frac{3}{4} \times 80 = 3 \times 20 = 60$ (since 80 divided by 4 is 20, then 3 times 20 is 60).

Answer:

35

Problem 5: 80% of 500