Answer:
8.8 minutes
Step by step explanation:
Assuming you meant "y = -0.3x + 11.2" instead of "y = -0.3x 11.2", here is the answer: (if not just let me know :) )
Since x is the variable that represents the number of days, and 8 is the number of days you will be training, let's plug 8 in for x in the equation:
y = -0.3x + 11.2 -> y = -0.3(8) + 11.2
Solving this, we get:
y = -0.3(8) + 11.2 -> y = -2.4 + 11.2 -> y = 8.8
The variable y equals the time in minutes, so our answer is 8.8.
