SOLUTION: Jerry needs to raise his batting avg. So far he has 20 hits in 100 times at bat for .200 batting avg. How many consecutive hits does he need in order to raise his avg to at least

Question 60406This question is from textbook College Preparatory Mathematics
: Jerry needs to raise his batting avg. So far he has 20 hits in 100 times at bat for .200 batting avg. How many consecutive hits does he need in order to raise his avg to at least .250? Solve. Write an equation This question is from textbook College Preparatory Mathematics

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I get 7 hits
20 hits / 100 at bats = 200 ave
(20 + x) / (100 + x) = .250
25 + .25x = 20 + x
.75x = 5
x = 500/75
x = 6.67
He can't have 6.67 hits, so use the closest whole number, 7
What if he only got 6 consecutive hits?
(20 + 6) / (100 + 6) = 26 / 106
26 / 106 = .245
so, 6 hits would not be enough, 7 is the answer

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