anonymous
  • anonymous
Hi! I need help with difference equations
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
DO you have an example?
anonymous
  • anonymous
Car has 14 gallon gas tank that is filled as as soon as level drops below a half tank Every time it is filled up, you add 1 quart (1/4) gallon of an additive.......
anonymous
  • anonymous
what is the difference equation that models \[A _{n}=7 + .25\]

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anonymous
  • anonymous
that is what I have for difference equation and initial value that models the amount of additive in tame at the time of the nth fill-up
anonymous
  • anonymous
well I have an=.25Asub o + 7
amistre64
  • amistre64
4 quarts or 8 quarts to a gallon?
anonymous
  • anonymous
4 so 1/4 = .25
amistre64
  • amistre64
so (7 - .25) gallons is the amount of gas put in at each fill up
amistre64
  • amistre64
n number of times...... right?
amistre64
  • amistre64
if you try to add a quart after filling up the tank, theres no room for it in the example....
amistre64
  • amistre64
14 gallon tank cant hold 14.25 gallons...... right?
amistre64
  • amistre64
so the amount of gas is 6.75n and the amount of additive is .25n ..... the total amount of gas and additives used at the nth time is ..... if I understand your question correctly :)
anonymous
  • anonymous
equation editor messing up but have to run will be back in about 3 hours for more help
anonymous
  • anonymous
thanks!
anonymous
  • anonymous
Need help again

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