Question

Cory drinks water from a bottle during a bike ride. The average amount of water, in
ounces, in his water bottle can be represented by the equation y = -8x+32, where y is the amount of water remaining after x hours. Based on the equation, what amount of water, in ounces, will remain in the bottle after Cory rides for 2 1/2 hours?

Answer 1

Answer is (B.) 12
Reason
They give you the formula
Y= -8x +32
Y is water remaining, the number we are looking for
X = 2.5 hours, insert in place of X

Y= (-8) (2.5) + 32
Y= -20 + 32
Y = 12