Question

the circle graph shown above represents the distribution of the grades of 40 students in a certain geometry class. How many students received Bs or Cs?

Answer 1

Given:

Total number of students = 40

From the circle graph given, let's determine the number of students that received Bs or Cs.

Given:

Percentage of students that received Bs = 30%

Percentage of students that received Cs = 40%

Percentage of student that received Bs or Cs = 40% + 30% = 70%

Thus, to find the number of students who received Bs or Cs, we have the equation below:

No of students who received Bs or Cs = (% of students who received Bs or Cs) x (Total n0 of students)

`\text{ No of student who received Bs or Cs = 70\% of 40}`

Thus, we have:

`\begin{gathered} \text{ No of students who received Bs or Cs = }(70)/(100)\ast40 \\ \\ =0.70\ast40 \\ \\ =28 \end{gathered}`

Therefore, the number of students who received Bs or Cs are 28

ANSWER:

C. 28