Question

The circle graph shows the results of a survey. Of those surveyed, 10 said no. About how many people were surveyed?

Answer 1

50 people

Explanation:

so to solve this we can use cross multiplying:

first we know that 20% = 10 people and 80% = x people (we put x because we don't know how many people)

then we set it up:

`(10)/(20)` =
`(x)/(80)`

= 20x = 800

= x = 40

now it asks how many people were surveyed in total so we add the 10 + 40 = 50

50 people were surveyed