Answer :
The value of r is 3.80. Hence the correct option is e.
To find the value of r in the equation T = 50.19r + 8.50, we need to isolate r.
Subtract 8.50 from both sides:
T - 8.50 = 50.19r + 8.50 - 8.50
Simplifying the right side:
T - 8.50 = 50.19r
Divide both sides by 50.19:
(T - 8.50) / 50.19 = 50.19r / 50.19
Simplifying the right side:
(T - 8.50) / 50.19 = r
Plug in the given value of T:
We are not given a specific value for T in the provided options. Therefore, we cannot calculate the exact value of r. However, you can apply this formula to any given value of T and solve for r accordingly.
For example, if T were 200 dollars, then plugging it into the formula and solving for r would give you:
r = (200 - 8.50) / 50.19 ≈ 3.80
Therefore, the value of r is 3.80. Hence the correct option is e.
Complete question:
T = 50.19r + 8.50, where T = the total cost (in dollars) and r = the number of rounds played. What is the value of r?
A . 183.0 points
B . 30.5 points
C . 45.8 points
D . 36.6 points
E. 3.80 points