Question 583737
0.8*0.63 + 0.2x = 0.63


0.504 + 0.2x = 0.63


0.2x = 0.63-0.504 


0.2x = 0.126


x = 0.126/(0.2)


x = 0.63


So you need to score a 63% to maintain a 63%. Scoring anything higher will bring your overall grade higher.
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