Newton's Law of Cooling
Tf=Ts+(Ti-Ts)e^(-kt) where Tf is temp at time t, Ts is temp of surroundings, Ti is temp of object/fluid. So we need to find k first.
200=68+(210-68)e^(-10k)
132=142e^(-10k)
132/142=e^(-10k)
ln(132/142)=-10k
k=-ln(132/142)/10
k≈0.0073 so
T(t)=68+142e^(-0.0073t) so how long until it reaches 180°?
180=68+142e^(-0.0073t)
112=142e^(-0.0073t)
112/142=e^(-0.0073t)
ln(112/142)=-0.0073t
t= -ln(112/142)/(0.0073)
t≈32.51 minutes
The graph of a function is linear of the graph is a straight line.
Answer: 48÷4 = g
Step-by-step explanation:
Here is the complete question:
Dylan scored a total of 48 points in first 4 games of the basketball season. Which equation can be used to find g, the average number of points he scores per game?
a. 48÷4=g
b. 4÷48=g
c. g÷4=g
d. 4÷g=48
The average number of points Dylan scores per game which has been represented by g will be the total points scored divided by the number of game played. This will be:
g = total point scored ÷ number of games played
g = 48 ÷ 4
Therefore, option A is the right answer.
just realized this is an old question
Answer:
190 students
Step-by-step explanation:
Set up a proportion:
95/100 = x/200
Cross multiply:
100x = 19000
Simplify:
x = 190 students
