Answer:
Step-by-step explanation:
According to the problem, the initial condition is $200. If he owed $100 after 4 weeks, that means he paid $25 per week, so that would be the constant ratio. Therefore, the expression would be:
Where 
represents the amount owed, and 
represents weeks.
So, in the 4 week, that is, 
he owed:
As you can observe, the relation we found first perfectly to the problem. So, the final expression that model this problem is
Answer:
18 s
Step-by-step explanation:
We are given that
Distance between Bob and John=450 feet
Speed of Bob=11ft/s
Speed of John=14 ft/s
We have to find the time after they will meet when they are travel towards to each other.
Total distance traveled by Bob and John in 1 s=11+14=25 ft
25ft covered by Bob and John in 1 s
1 ft covered by Bob and John in 
450 ft covered by Bob and John in 
Hence, they will meet after 18 s.
Recursive equation would be f(x+1) = f(x) - 25 with f(0) = 300
Explicit equation would be f(x) = -25x + 300
And graph would looks like this:
First is to get the volume of the cylinder.
Volume = pi * r^2 * H
Volume = 3.1416 * (5/2)^2 * 30
Volume = 589.05 in^3
30% is already filled.
Filled Space = 589.05 * 0.30
Filled Space = 176.715 in^3
Empty Space = 412.335 in^3
Next, get the volume of the sphere.
V = (4/3)*pi*r^3
V = (4/3)*pi*(0.6/2)^3
V = 0.1130976 in^3
Number of foams = Filled Space / V
Number of foams = 176.715 / <span>0.1130976
Number of foams = 1562 Foams</span>
