For this case, we first look for the number of blonde girls.
We have then:
We are now looking for the percentage of the class with blonde hair.
For this, we make the following rule of three:
30 --------------> 100%
4.25 -----------> x
From here, we clear the value of x.
We have then:
Answer:
14.2% of the class are blonds
We have then:
We are now looking for the percentage of the class with blonde hair.
For this, we make the following rule of three:
30 --------------> 100%
4.25 -----------> x
From here, we clear the value of x.
We have then:
Answer:
14.2% of the class are blonds