Question

Lincoln High’s enrollment decreases an average rate of 75 students per year, while Erie High’s enrollment increases at an average of 60 students per year. Lincoln high has 3150 students and Erie High has 2475 students if Lincoln High continues to change at the same rates, when will the two schools have an equal number of students?

Answer 1

Lincoln High 17 years

Erie High 10 years

Explanation:

75 * 17 = 1,275

3,150 - 1,275 = 1,875

60 * 10 = 600

2475 - 600 = 1,875