SOLUTION: josie has taken 3 math test thus far and earned grades of 87, 93 and 84. She has one tes left for the marking period. What grade must josie receive on her last test to receive at l

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: josie has taken 3 math test thus far and earned grades of 87, 93 and 84. She has one tes left for the marking period. What grade must josie receive on her last test to receive at l      Log On


   

Question 1095214: josie has taken 3 math test thus far and earned grades of 87, 93 and 84. She has one tes left for the marking period. What grade must josie receive on her last test to receive at least a 90% for the marking period?
Found 2 solutions by Alan3354, addingup:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
josie has taken 3 math test thus far and earned grades of 87, 93 and 84. She has one tes left for the marking period. What grade must josie receive on her last test to receive at least a 90% for the marking period?
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87+93+84 = 264 (I'm almost certain).
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(264 + Score)/4 >= 90
264 + Score >= 360
Score >= 96

Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
(87+93+84+x)/4 = 90
87+93+84+x = 360
264+x = 360
x = 96 Josie needs to study hard!