Chapter 9, Problem 1RP

Course Enrollment Use this pictograph to answer exercises 1–-4.

How many students are enrolled in prealgebra?

To determine

To calculate: The number of students joined the prealgebra course from the provided pictograph.

Answer to Problem 1RP

Solution:

The number of students who are a part of the prealgebra course is 350.

Explanation of Solution

Given Information:

A pictograph showing the number of units enrolled for three courses, namely, prealgebra, algebra and calculus and the value of each unit is 50 students.

Formula Used:

If a variable consists of n number of units and the value of each unit is m, then the value of the variable is as follows:

$\text{Value of variable}=m\times n$

Calculation:

From the graph, it can be clearly seen that the number of units who have joined prealgebra discipline is 7 units.

Since, one unit consists of 50 students, therefore, the total number of students who are a part of the prealgebra course is:

$7\times 50=350$

Thus, 350 students are attending prealgebra course.