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Chapter 12: Q.12.3 (page 682)

Emma’s Extreme Sports hires hang-gliding instructors and pays them a fee of \(50 per class as well as \)20 per student in the class. The total cost Emma pays depends on the number of students in a class. Find the equation that expresses the total cost in terms of the number of students in a class.

Short Answer

Expert verified

The equation that expresses the total cost in terms of the number of students in a class isy=50+20x.

Step by step solution

01

Given Information

Consider that hang-gliding instructors are hired by Emma's ES.

Let,y=Total cost Emma pays.

x=Number of students in a class.

02

Explanation

To find the equation that expresses the total cost in terms of the number of students in a class:

A fee of $50is the fixed cost of hiring hang-gliding instructors. If there are xnumber of students in a class, then (20×x)is the cost or fee of hiring hang-gliding instructors. Hence, the equation that expresses the total cost in terms of the number of students in a class is written below:

y=$50+($20×x).

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