D. y= -2x+9 is a solution that will produce an infinite number of solutions
Answer:
Rs20
Step-by-step explanation:
C.P=Rs180
S.P=Rs200
profit =S.P-C.P
=Rs200-Rs180
=Rs20
Newton's Law of Cooling states that the change
of the temperature of an object is proportional to the difference between its
own temperature and the ambient temperature over time.
Therefore when expressed mathematically, this is equivalent
to:
dT = - k (T – Ts) dt
dT / (T – Ts) = - k dt
Integrating:
ln [(T2– Ts) / (T1– Ts)] = - k (t2 – t1)
Before we plug in the values, let us first convert the
temperatures into absolute values R (rankine) by adding 460.
R = ˚F + 460
T1 = 200 + 460 = 660 R
Ts = 70 + 460 = 530 R
ln [(T2– 530) / (660 – 530)] = - 0.6 (2 - 0)
T2 = 569.16 R
T2 = 109 ºF
Answer: After 2 hours, it will be 109 ºF
Answer:
A. 12
B. 18
C. 10
Step-by-step explanation:
A. 2/3 of 36 is 12
B. 2/4 of 36 is 18
C. 5/8 of 16 is 10
Answer:
63,633
Step-by-step explanation:
2,453 + 61,18
= 63,633
