## onegirl 2 years ago write an arithmetic sequence that has 3 arithmetic means between -1/4 and -19/12

1. onegirl

@jishan can u help?

2. onegirl

3. onegirl

@surdawi can u help??

4. onegirl

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

5. klimenkov

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

6. onegirl

so the difference is -1?

7. onegirl

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

8. klimenkov

9. onegirl

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

10. onegirl

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. onegirl

are u there?

12. klimenkov

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

13. onegirl

so the difference is -4 right?

14. onegirl

???

15. klimenkov

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

16. onegirl

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

17. onegirl

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

18. klimenkov

Yes.|dw:1355342631582:dw|

19. onegirl

i got it thanks!