Question

Suppose an Egyptian mummy is discovered in which the amount of​ carbon-14 present is only about ​- the amount found in living human beings. The amount of​ carbon-14 present in animal bones after t years is given by y​, where is the amount of​ carbon-14 present in living human beings. About how long ago did the Egyptian​ die?

Answer 1

Solutions Equation for amount of carbon-14 present after 14 years is y = yo e 0.0001216 E Here you is initial amount of carbon-4 consider carbon -14 after some years is 3/4 th of the initial amount So carbon - 14 present now is 3/4 yo so 3/4 yo yo Apply this to above equation to find t! 3 4 yo = yo e-0.00012167 e-0.0001216+ 33 4 y 4

Taking natural log on both the sider In e 0.00012165 0 In 13 in (2) We know Inlex so = 0.00012161 In 13 ( 3 4 ta in 13 4 In 0.0001216 2365.8065) Egyptian died about 2366 years ago