Question

the floor of a canyon has an elevation of -6.5 feet erosion causes the elevation to change by -0.25 feet per year. How many years will it take for the canyon floor to have an elevation of -20 feet.

Answer 1

Answer:

54

Step-by-step explanation:

20 - 6.5 = 13.5

13.5 / 0.25 = 54

It would take 54 years for the canyon to erode 13.5 more feet to bring to -20 elevation.