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Bonnie has to maintaining an average of 90 in all of her classes to have an A average . In math , she has scored 93,70,99 and 95 on the first four tests . What must she score on the last test to have an average 90 ?

 Feb 5, 2020

Best Answer 

 #1
avatar+17 
+2

solve this equation : (93+70+99+95+x) / 5 = 90

 

=> x = 93.

 

So that She must get at least 93 for reach an A :) Hope it can help

 Feb 5, 2020
 #1
avatar+17 
+2
Best Answer

solve this equation : (93+70+99+95+x) / 5 = 90

 

=> x = 93.

 

So that She must get at least 93 for reach an A :) Hope it can help

noobfromvn26 Feb 5, 2020
 #2
avatar+107011 
+1

Thanks, Noobfromvn  !!!

 

 

cool cool cool

 Feb 5, 2020

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