Question

twenty-four students brought their permission slips to attend the class field trip to the local art museum. if this represents eight-tenths of the class, how many students in the class? question 8

Answer 1

There are a total of 30 students in the class. The equation used to solve the question is,
`(8)/(10)` × x = 24.

Explanation:

Step 1; It is given that 24 students make up eight-tenths of the entire class. Assume the total number of students in class is x. So we have 24 will equal eight-tenths of x, as x is the total number of students.

The equation is
`(8)/(10)` × x = 24. Multiply both sides by
`(10)/(8)`

`(8)/(10)` × x ×
`(10)/(8)` = 24 ×
`(10)/(8)`, The
`(8)/(10)` and
`(10)/(8)` cancel out each other on the LHS.

x =
`(240)/(8)` = 30.

So there are 30 students in the class in total i.e. x = 30.

Step 2; To draw the bar chart, measure the entire length of the bar and divide it by 10. Shade eight-tenths of the bar and name it students that are going to the trip = 24, the remaining two-tenths is named students not going = 6.