Answer:
9 3/6 ⇒ 19/2
3 4/6 ⇒ 11/3
Step-by-step explanation:
A fraction greater than one is an improper fraction.
when converted into an improper fraction is

when converted to a fraction is

Thus fractions
and
when converted to fractions greater than one are
and
respectively.
U.v = (1*-5) + (6*-2) = -5 - 12 = -17 <------- Answer
The answer is 3:9 because it says that he sold 3 out of the 12 paintings and so it asks first of how many did he sell and he sold three and how many did he not sell and so it's nine left
Answer:
76.25°
Step-by-step explanation:
The solution to the differential equation is an exponential curve with a horizontal asymptote at Tm. It passes through (0, 145) and (30, 95), so the equation can be written as ...
T = 80 +65((95-65)/(145-65))^(t/30)
T = 80 +65(3/8)^(t/30)
That is, the temperature difference is reduced to 3/8 of its original value in 30 minutes.
Since the coffee in cup B cools twice as fast, it will cool to the same temperature (95°) in 15 minutes. In the next 15 minutes, the temperature difference will be reduced to (3/8)^2 of the original 80°, so will be 11.25°. That is, the temperature of cup B will be ...
11.25° +65° = 76.25°
after 30 minutes.