## sara1234 2 years ago im stuck on this problem

1. sara1234

i need steps

2. sara1234

what i did a=68000e^(0.035*8) 68000e^(0.28) now what?

3. CalebBeavers

Have you seen y=a(1+b)^x where a=original amount b=growth rate(as decimal) x=time and y=amount at given time

4. sara1234

no i havent i ssen A=pe^rt

5. geerky42

What about $$\large A = P\left(1+\dfrac{r}{n}\right)^{nt}$$?

6. sara1234

yeah i seen it but i have to use the one i told you about can you help me?

7. sara1234

i have a graphing caculator i just dont know what to do next and with e

8. geerky42

Ok, you are doing it right. What kind of graphing calculator do you use?

9. sara1234

TI-84 PLUS SILVER EDITION

10. geerky42

Well, it's not that hard to calculate use this calculator! For e^(...), press 2ND (blue button) then press LN. Does it help?

11. sara1234

okay i got 89972.82724 when i multiplied that by 68000 i got a strange answer

12. geerky42

Well, you can round it up to 89,973 since the question wants approximate number of attendance.

13. sara1234

68000(89972.82724)=6118152252 which is not in the answer chocies

14. sara1234

15. geerky42

No, A = 89972.82724 since you have already multiplied e^(...) by 68000. You got about 6118152252 because you did it twice.

16. sara1234

i dont understand whats the next steps after this a=68000e^(0.035*8) 68000e^(0.28)

17. sara1234

we found e what do we do with it?

18. geerky42

Multiply it with 68000.

19. geerky42

Exactly what don't you understand? Do you know what e is, right?

20. geerky42

Just calculate 68000 * e^(0.035 * 8)

21. geerky42

You got it?

22. sara1234

ok so it 89973

23. geerky42

Yes!

24. sara1234

A=Pe^-rt =26600e^(-0.29) i put it in the calculator and got error

25. geerky42

That's strange, I put it in the calculator and I didn't get error...

26. sara1234

what did you get i got error i dont understand

27. sara1234

@jim_thompson5910