SOLUTION: In 3 bowling games, Alice scores 139, 143 and 144. What score will Alice need in a fourth game in order to have an average score of 145 for all four games?
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Question 945579: In 3 bowling games, Alice scores 139, 143 and 144. What score will Alice need in a fourth game in order to have an average score of 145 for all four games? Answer by Horlaye(27) (Show Source):
You can put this solution on YOUR website! Let p represent the fourth score
(add all scores/occurrence = average)
(139+143+144+p)/4 = 145
(426+p)/4 = 145/1
Cross multiply
. 426+p = 4(145)
426+p = 580
Collect like term
p = 580-426
p = 154
Since p represent the fourth score
Therefore Alice need to score 154 in her fourth game to get the average score of 145
