Question

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Use the circle graph shown below to answer the question.

If 30 sixth graders own birds, how many sixth graders were surveyed?

Answer 1

600 sixth-graders were surveyed.

Explanation:

Step 1; Assume x is the total number of sixth-graders that were surveyed. According to the given circle graph, 5% of the sixth-graders that were surveyed have birds as their pets. If x is the total number of sixth-graders surveyed then 5% of x equals 30. So

5% of x = 30.

5% equals
`(5)/(100)` = 0.05, so 5% = 0.05.

Step 2; If 0.05 x = 30, we can solve by keeping the unknown value on one side and keeping all the known values on one side.

x =
`(30)/(0.05)` = 600.

So 600 sixth-graders were surveyed.