True they are only being four countries that have not adopted the metric System
D=dante's cards number
a=anna's cards number
d=60
this (d) is at least (smallest is, aka greater than or equal to or <u>></u>) 6 more than (+6) 3 times as many as anna (3 times a or 3a)
d<u>></u>6+3a
d=60
60<u>></u>6+3a
subtract 6 from both sides
54<u>></u>3a
divide both sides by 3
18<u>></u>a
anna has at least 18 cards
Answer:
The time will be 25 minutes in which snowball be completely melted.
Step-by-step explanation:
Given : The rate of change of the volume of a snowball that is melting is proportional to the surface area of the snowball. Suppose the snowball is perfectly spherical.
Then the volume (in centimeters cubed) of a ball of radius r centimeters is
The surface area is
Set up the differential equation for how r is changing. Then, suppose that at time t = 0 minutes, the radius is 10 centimeters. After 5 minutes, the radius is 8 centimeters.
To find : At what time t will the snowball be completely melted?
Solution :
Using given condition,
....(1)
Substitute in (1),
Now, t=0 , r=10
So,
i.e.
After 5 minutes, t=5 , r=8
The equation form is
The snowball be completely melted means radius became zero.
The time will be 25 minutes in which snowball be completely melted.
Answer:
B) 93
Step-by-step explanation:
.................
Answer: 12 hours
Step-by-step explanation: they ask For how many hours will Jada’s service be cheaper than Mai’s its 12 if you subtract 60-48 which is how much jade and mai is paying you have 12 and thats with the fee without the fee it would still be 12 becuase thats how much hours they put into it