4x - 4y = 10
1. Factor out the common term 4
4(x - y) = 10
2. Divide both sides by 4
x - y = 10/4
3. Simplify 10/4 to 5/2
x - y = 5/2
4. Add y to both sides
x = 5/2 + y
3x + 2y = 5
1. Subtract 2y from both sides
3x = 5 - 2y
2. Divide both sides by 3
x = 5 - 2y/3
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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.
The answer is false.
Hope this helped! :)
Answer: No because 4/5*0 equals 0. if the y was the exponents it would work though.