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, $\frac{8}{10}$ × x = 24.

Step-by-step 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 $\frac{8}{10}$ × x = 24. Multiply both sides by $\frac{10}{8}$

$\frac{8}{10}$ × x × $\frac{10}{8}$ = 24  × $\frac{10}{8}$, The $\frac{8}{10}$ and $\frac{10}{8}$ cancel out each other on the LHS.

x = $\frac{240}{8}$ = 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.