Question

In a class of 30 students 60% said they walk to school.

A) estimate how many students in the class walk to school.

B) write a proportion that you could use to determine the number of students in the class who walk to school.

C) solve your proportion. Check that your answer is reasonable.

Answer 1

a) 18

b) 18 : 12

c)3 : 4

Explanation:

a) 30 ×
`\frac {60}{100}`

= 18 students walk to school

b) No. of students No. of students

who walk to school : who walk to school

18 : 12

c)

18 : 12

=18/6 : 12/3

=3 : 4