## annie.kopliku 2 years ago Frank has test grades of : 84 , 92 , 89, and 93. He wants an average of 90. What grade should he get on his next test in order to get a 90 average?

1. Hero

Someone posted this same problem earlier

2. awesomeness123

92 i think!

3. Hero

Yet no proof of how you got the 92

4. awesomeness123

sorry! I multiplied 90*5 to get 450

5. awesomeness123

then subtracted each answer from 450 like 450-84-92...etc

6. awesomeness123

chill out dude

7. awesomeness123

idk if im write im so brain weary rite now

8. Hero

You shouldn't just post answers without at least showing how you got it. For more info, consult the code of conduct

9. awesomeness123

sorry man! im new here! this is my first day

10. awesomeness123

i showed my work now!

11. awesomeness123

sorry annie!

12. Hero

Ask the user if he understands it

13. annie.kopliku

I'm a GIRL.

14. awesomeness123

its a girl! and annie do you understand how i got that?

15. Hero

Annie, did you understand anything @awesomeness123 wrote?

16. annie.kopliku

Uh...Well I did, but just not the subtracting part.

17. annie.kopliku

Like , can't I just add 84 + 92 + 89 + 93 together and subtract the sum of that from 450 ?

18. awesomeness123

okay to get the average you must add together then divide right

19. awesomeness123

so for this we must do the opposite

20. awesomeness123

yes! lol i made that complicated

21. awesomeness123

sorry im doing math on a virtual school doing math so my brain feels like jelly

22. annie.kopliku

Alright, well then I got it. Thanks ♥

23. awesomeness123

im so tired that i wrote doing math twice

24. awesomeness123

yes what you did was correct!

25. annie.kopliku

It's okay :)

26. awesomeness123

np! anytime