What is the length of AB? Help ASAP
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Answer:
<u>870</u> people attend the school.
Step-by-step explanation:
Given:
Thad conducted a survey on hair color at his school.
His results were:
23 students had blonde hair, 38 students had black hair, 7 students had red hair and 19 students had brown hair.
Now, to find number of people attended school if he had sampled 1 out of every 10 students.
So, we add the total number of students who had been surveyed on hair color:
Then, we get the percentage of the sample of 1 out of 10 students:
<u><em>Thus, we get that 10% of students surveyed from the total who attend the school.</em></u>
Now, to get the number of people who attend school we set an equation:
Let the people attend the school be .
So,
⇒
⇒
<em>Multiplying both sides by 100 we get:</em>
⇒
<em>Dividing both sides by 10 we get:</em>
⇒
Therefore, 870 people attend the school.