Answer:
Step-by-step explanation:
As per Newton law of cooling we have temperature of a cooling object at time t is given by
T(t) = 
where 
When t=2.5, we have
Hence equation is
Using this we find that
i.e. At 1.6 seconds the coffee will reach a temperature of 130 degrees
Prettyyyyyy sure it’s the 2nd one
Answer:
56x-42x+63
Step-by-step explanation:
<span> the answer is the stocks have a yield 0.88 percentage points greater than that of the bonds.</span>
4s+7a=861
s+a=168
This can be solved using either elimination or substitution. I am going to use substitution.
Solve s+a=168 for s
s=168-a
Replace 168-a for s in 4s+7a=861
4(168-a)+7a=861
672-4a+7a=861
Solve for a
672+3a=861
3a=189
a=63
Substitute 63 for a in s=168-a
s=168-63=105
So, s=105 student tickets and a=63 adult tickets
