Answer:
elmo is 3 right now
Step-by-step explanation:
5x -4 = 3x+2
2x= 6
x= 3
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Answer
-i sqrt 37
Step-by-step explanation:
Answer:
89/100
Step-by-step explanation:
The average weighted by the number of students is ...
(90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100