Question

Hi! I need help with difference equations

Answer 1

DO you have an example?

Answer 2

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.......

Answer 3

what is the difference equation that models \[A _{n}=7 + .25\]

Answer 4

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

Answer 5

well I have an=.25Asub o + 7

Answer 6

4 quarts or 8 quarts to a gallon?

Answer 7

4 so 1/4 = .25

Answer 8

so (7 - .25) gallons is the amount of gas put in at each fill up

Answer 9

n number of times...... right?

Answer 10

if you try to add a quart after filling up the tank, theres no room for it in the example....

Answer 11

14 gallon tank cant hold 14.25 gallons...... right?

Answer 12

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 :)

Answer 13

equation editor messing up but have to run will be back in about 3 hours for more help

Answer 14

thanks!

Answer 15

Need help again