The number students enrolled in the elementary school is 5750 and is increasing by 250 students per year. The following equation represents this relationship:
S = 5750 + 250 y
Where S represents the number of students and y represents the number of years.
Using the above equation, find out how many years it will take for the number of enrolled students to reach 8500?
Answer: 11 years
Explanation:
The above equation is used to find the solution for this problem. Since the final number of students is to become 8500, then we must substitute that for S in the equation as follows:
S = 5750 + 250 y Original Equation
8500 = 5750 + 250 y Substituting 8500 for S
8500 – 5750 = 250 y Isolating Variables
2750 = 250 y Solve for y
2750 / 250 = y Divide both sides by 250
11 = y The number of years it will take for the number of enrolled
students to become 8500
©Copyright 2007.Najwa S. Hirn. All rights reserved.
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