Answer: You need to wait at least 6.4 hours to eat the ribs.
t ≥ 6.4 hours.
Step-by-step explanation:
The initial temperature is 40°F, and it increases by 25% each hour.
This means that during hour 0 the temperature is 40° F
after the first hour, at h = 1h we have an increase of 25%, this means that the new temperature is:
T = 40° F + 0.25*40° F = 1.25*40° F
after another hour we have another increase of 25%, the temperature now is:
T = (1.25*40° F) + 0.25*(1.25*40° F) = (40° F)*(1.25)^2
Now, we can model the temperature at the hour h as:
T(h) = (40°f)*1.25^h
now we want to find the number of hours needed to get the temperature equal to 165°F. which is the minimum temperature that the ribs need to reach in order to be safe to eaten.
So we have:
(40°f)*1.25^h = 165° F
1.25^h = 165/40 = 4.125
h = ln(4.125)/ln(1.25) = 6.4 hours.
then the inequality is:
t ≥ 6.4 hours.
Answer:
4 : 12 : 15
Step-by-step explanation:
S : J = 1 : 3
J : P= 4 : 5
Using John's ratio to find a common ratio for all
S : J
(1 : 3)4 = 4 : 12
J : P
(4 : 5)3 = 12 : 15
Therefore our ratio is
S : J : P
4 : 12 : 15
Answer:
c
Step-by-step explanation:
you said answer c so i did
Part A:
The two factors of this expression are 9 and 7+2x. The first factor is a constant consisting of only one element. The second factor is a binomial which means it is consisted of two elements or terms.
Part B:
As already described above, the first factor only has 1 term and the second, being a binomial, has two terms.
Part C:
The term which is linked to the variable is 2x. This means that the numerical coefficient of the variable term is 2.
Moreover if we try to simplify the factors by distribution, we get,
63 + 18x
This will then tell us that the coefficient of the variable term is 18.
I'm not sure what the question is. If this is true or false, then the answer is true. The top part of a fraction (the numerator) represents part of the whole. The bottom number (the denominator) represents the whole number.
Example:
3/4
Three is part of the whole, which is four
Hope this helps! :)
