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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?

Algebra
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Someone posted this same problem earlier
92 i think!
Yet no proof of how you got the 92

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Other answers:

sorry! I multiplied 90*5 to get 450
then subtracted each answer from 450 like 450-84-92...etc
chill out dude
idk if im write im so brain weary rite now
You shouldn't just post answers without at least showing how you got it. For more info, consult the code of conduct
sorry man! im new here! this is my first day
i showed my work now!
sorry annie!
Ask the user if he understands it
I'm a GIRL.
its a girl! and annie do you understand how i got that?
Annie, did you understand anything @awesomeness123 wrote?
Uh...Well I did, but just not the subtracting part.
Like , can't I just add 84 + 92 + 89 + 93 together and subtract the sum of that from 450 ?
okay to get the average you must add together then divide right
so for this we must do the opposite
yes! lol i made that complicated
sorry im doing math on a virtual school doing math so my brain feels like jelly
Alright, well then I got it. Thanks ♥
im so tired that i wrote doing math twice
yes what you did was correct!
It's okay :)
np! anytime

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