Question

5. 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

18 students walk to school

Explanation:

what I did to get this answer is more like 30 by .60 and this works for pretty much all problems like this

Answer 2

a) To estimate how many students in the class walk to school,

we can use the percentage that was given. 60% of 30 students is:

0.60 x 30 = 18 students

So, we can estimate that 18 students in the class walk to school.

b) We can write a proportion to determine the number of students in the class who walk to school as follows:

number of students who walk to school / total number of students = proportion of students who walk to school

Let's use x to represent the number of students who walk to school. Then, the proportion becomes:

x / 30 = 0.60

c) To solve the proportion,

we can cross-multiply and simplify:

x / 30 = 0.60

x = 0.60 x 30

x = 18

So, the number of students in the class who walk to school is 18, which matches our estimate from part a).

This suggests that our answer is reasonable.

Therefore, we can conclude that approximately 18 out of 30 students, or 60% of the class, walk to school.