SOLUTION: Nick's test average is 85 after 10 weekly test. What must his average be on the last five test of the sememster to bring his average to a 90.
Algebra.Com
Question 919444: Nick's test average is 85 after 10 weekly test. What must his average be on the last five test of the sememster to bring his average to a 90.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
A average on last 5
5A = 90*15- 850
A = 100
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