Question

1. complete each percentage statement.

a % of 20 is 15.
b % of 170 is 68.
c % of 20 is 25.

Explanation:

Step1: Solve part (a)

To find what percentage of 20 is 15, we use the formula: \(\text{Percentage}=\frac{\text{Part}}{\text{Whole}}\times100\%\). Here, the part is 15 and the whole is 20. So, \(\frac{15}{20}\times100\% = 0.75\times100\% = 75\%\).

Step2: Solve part (b)

For the statement "____% of 170 is 68", using the same formula. The part is 68 and the whole is 170. So, \(\frac{68}{170}\times100\% = 0.4\times100\% = 40\%\).

Step3: Solve part (c)

For "____% of 20 is 25", the part is 25 and the whole is 20. So, \(\frac{25}{20}\times100\% = 1.25\times100\% = 125\%\).

Answer:

a. 75%
b. 40%
c. 125%