Answer:
39.29 ft
Step-by-step explanation:
We are made to know that the fountain contains two semi circles and a quarter-circle.
This means the fountain contains a total of 1+1/4 = 1.25 circles
Interestingly, the circles are similar and have the same diameter.
Now the perimeter of a circle with diameter 10ft is simply πd = 10 π
Now, since we have a total of 1.25 circles, the total perimeter would be 1.25 * 10 π = 12.5 π ft
With π as 22/7, the actual value of the perimeter would be 39.29 ft
A= (a+b)/2*h
A=(12+15)/2*5
A=(27/2)*5
A=13.5*5
A=67.5in
Answer:
Step-by-step explanation:
Assuming that for each option, you play the same number of games,x
Let y represent the cost of playing x games using option A
Option A is to buy a membership card and pay $2 every time you go to the gym. The membership card costs $20. It means that
y = 20 + 2x
Let z represent the cost of playing x games using option B
Option B is to pay $4 each time you go. It means that
z = 4x
To determine how many games will be played before cost of option A equal to the cost of option B, we would equate y to z. It becomes
20 + 2x = 4x
4x - 2x = 20
2x = 20
x = 20/2 = 10
It will take 10 games for both to be the same
