a barrel contains 153 gallons of water and is being drained at a constant rate of 10 gallons per minute write an equation that models the number of gallons after t minutes i have to show my work on this one

Question

a barrel contains 153 gallons of water and is being drained at a constant rate of 10 gallons per minute  write an equation that models the number of gallons after t minutes  i have to show my work on this one

anonymous · Answer

similar to the previous one but here, they actually give you the rate:  -10

anonymous · Answer

so if it starts at 153 gallons and decreases by 10 gallons every minute...
what's the equation going to look like?

anonymous · Answer

g=t-10

anonymous · Answer

153=t-10

anonymous · Answer

t= 0 minutes  gallons = 153
t=1 minutes    gallons = 143
t=2 minutes    gallons = 133
|dw:1347865232464:dw|

anonymous · Answer

equations of lines are like:
 y = rate*x +y intercept
y intercept is the amount of whatever we're dealing with when x=0
for acres it was 5   
for gallons it's 153

anonymous · Answer

so y = rate*x +153     ... got that part?

anonymous · Answer

now put in the rate they give you

anonymous · Answer

y=...?

anonymous · Answer

what's the rate

anonymous · Answer

g=153-10t

anonymous · Answer

can you please continue this one