SOLUTION: Laura is bowling 5 games. Her first 4 scores were 115, 84, 123, and 101. To end up with an average score of at least 120, what is the lowest score Laura will need in the fifth g

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Question 1029689: Laura is bowling 5 games. Her first 4 scores were 115, 84, 123, and 101.
To end up with an average score of at least 120, what is the lowest score Laura will need in the fifth game?
Found 2 solutions by Fombitz, josmiceli:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28115%2B84%2B123%2B101%2BS%29%2F5=120
423%2BS=600
Solve that to complete the problem.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = her 5th score
[ average of scores ] = [ total of scores] / [ number of games ]
+120+=+%28+115+%2B+84+%2B+123+%2B+101+%2B+x+%29+%2F+5+
+600+=+115+%2B+84+%2B+123+%2B+101+%2B+x+
+600+=+423+%2B+x+
+x+=+600+-+423+
+x+=+177+
The lowest score Laura will
need in the fifth game is 177