## anonymous 3 years ago write an arithmetic sequence that has 3 arithmetic means between -1/4 and -19/12

1. anonymous

@jishan can u help?

2. anonymous

3. anonymous

@surdawi can u help??

4. anonymous

@supercrazy92 do you know this one? if so can u help?

5. klimenkov

Solve this: $$-\frac{19}{12}+d+d+d=-\frac14$$

6. anonymous

so the difference is -1?

7. anonymous

how do i find the difference? i used the formula but i'm not getting the right answer

8. klimenkov

9. anonymous

no i dont, everytime i keep doing it i end up messing up

10. anonymous

here is what i got so far 19/12 -(-1/4) = -19/12 + 1/4 = -19/12 + 3/12 = -16/12 = -4. Since the difference is -4, divide by 4, = -1.

11. anonymous

are u there?

12. klimenkov

$$-\frac{16}{12}\ne -4$$

13. anonymous

so the difference is -4 right?

14. anonymous

???

15. klimenkov

$$-\frac54, -\frac{11}{12},-\frac7{12}$$. Difference is $$\frac4{12}$$.

16. anonymous

hmm how did u get it tho? can u explain?

17. anonymous

so the 3 terms will be -5/4, -11/12, and -7/12 ?

18. klimenkov

Yes.|dw:1355342631582:dw|

19. anonymous

i got it thanks!