Answer:
17 days
Step-by-step explanation:
+y+=+275+-+8x+
The x-intercept is the point ( x,0 )
Since y=0 at the x-intertcept, this
is the point where the remaining gallons
of oil in the tank = 0, and the value
of x will be the number of days to
use up all 275 gallons
The tank will be half full when the remaining
gallons = +275%2F2, so I can say:
275%2F2=275+8x
Multiply both sides by 2
275+=550+16x
16x=550+275
16x=275
x=17.1875
The tank will be half full during the 17th day
