Eric drains his aquarium. The function f(x) = 40 - 2x can be used to determine the number of gallons of water left in the tank x minutes after he begins.
At what rate does Eric drain the water from his aquarium?

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

a .4y4

hope this !

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step-by-step explanation: