Thursday

April 24, 2014

April 24, 2014

Posted by **someone** on Saturday, May 12, 2012 at 10:03pm.

but i keep getting it wrong any suggestions?

A roasted turkey is taken from an oven when its temperature has reached 185 Fahrenheit and is placed on a table in a room where the temperature is 75 Fahrenheit.

(a) If the temperature of the turkey is 153 Fahrenheit after half an hour, what is its temperature after 45 minutes?

Your answer is Fahrenheit.

(b) When will the trukey cool to 100 Fahrenheit?

Your answer is hours.

- Math -
**bobpursley**, Saturday, May 12, 2012 at 10:13pmI disagree with your equation. At time=0,

temp=70+110=180F However this does not match the problem description. So it makes sense that it should be

temp=75+110e^kt that works at time zero.

153=75+110e^k*.5

78=110 e^.5k

.0709=e^.5k

take the ln of each side

.0709=.5k

solve for k, then put it in the equation

temp=75+110e^kt

at you have k, and time as .75, solve for temp.

b. solve for time when temp=100

**Related Questions**

math - For this problem my equation is Y=70+110e^kt but i keep getting it wrong ...

Calculus AB - Verify if the given equations are solutions to the differential ...

Calculus - I'm having trouble with part of a question in a problem set. The ...

physics - A car starts from rest with a velocity given by v=kt^3 where k is a ...

math - Q. five times the sum of 3 and some number is 70. What is the number? I ...

chemistry - ) Choose the correct integrated rate law for each reaction order. (...

math,help - The height h in feet of an object after "t" seconds is given by the ...

diffrential - show that s(t)=exp(-kt) can be written in the form s(t)=2^(-kt/ln(...

math - An art projector takes a 5 x 5" picture and enlarges it 14 times. What is...

calculus - d=dmax (1-e^(-kt)) This equation is the result of integrating an ...