A famous math professor is found dead by his butler in his 50-room mansion. A student arrives on the scene at noon (12 P. M.) and immediately measures the temperature of the body to be 80 deg F. After 1 hour the student measures the temperature of the body again and finds it has fallen to 75 deg F. Assuming the professor’s original temperature was 98.6 deg F, and room temperature is a constant 70 deg F, how long before the student arrived on the scene did the professor die?

∡ eia and ∡ kij are congruent

step-by-step explanation:

to find the unit price of an object, you divide the price by object. you are trying to find out how much an object cost per unit.

for instance, lets say you have 50lb of ice cream(object) that cost 8.00 dollars(price). to find the unit cost, we take the 8.00 and divide it by 50, which will give us .16 cents per pound. we can check this by multiplying .16 by 50 = 8.00

so

object = e2

price = d2

unit price = c2

formula for c2:

=d2 / e2

so in my example about ice cream, we would have the following.

e2 = 50

d2 = 8.00

c2 formula:

=d2 / e2