Suppose an Egyptian mummy is discovered in which the amount of carbon-14 present is only about one-fourth the amount found in living human beings. The amount of carbon-14 present in animal bones after t years is given by y = y₀ e⁻⁰.⁰⁰⁰¹²¹⁶ᵗ, where yo is the amount of carbon-14 present in living human beings. About how long ago did the Egyptian die?
About ____ yr ago the Egyptian had died.
(Round to the nearest integer as needed.)