Question

21 out of the 70 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work part-time?

Answer 1

Explanation:

Let's set up a percent proportion

21/70 = x/100

Now remember:

in a:b = c:d,

a is connected to d and b is connected to c

This means:

If a is missing, (b*c)/d = a

If b is missing, (a*d)/c = b

If c is missing, (a*d)/b = c

If d is missing, (b*c)/a = d

In this case, c is missing.

(21 * 100)/70 = 2100/70 = 30

Your answer is 30%

Another way to do this is using benchmark fractions

We know that 10% of 70 is 7

So we do 10%*3 = 30% = 21

This means:

7 * 3 = 21

This also means:

21 = 30% of 70

I hope this helped, let me know if you have any questions

Answer 2

30%

Explanation:

We know that the number of part time employees are 21. The total amount of employees is 70. We can turn these numbers into a fraction: 21/70.

If we simplify this fraction, we'll get 3/10, which is 30% as a percentage.