when paula went bowling, she scored 118 and 138 in her first two games. what must she score in a third game to have an average score 0f 132
2007-03-13 02:12:05 · 6 answers · asked by ♥kristie♥ 2 in Science & Mathematics ➔ Mathematics
to have an average of 132 for 3 games she must score a total of 132 * 3 pts
132 * 3 = 396
so far she scored 118 and 138
118 + 138 = 256
so she needs to score 396 - 256 pts
396 - 256 = 140
answer - 140
2007-03-13 02:16:14 · answer #1 · answered by Bill F 6 · 2⤊ 0⤋
Media = (118 + 138 + x)/3 =
132 * 3 = 256 + x
396 - 256 = x
x = 140
answer: She must score 140 in a third game.
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2007-03-13 09:30:44 · answer #2 · answered by aeiou 7 · 0⤊ 0⤋
(118 + 138 + x) / 3 = 132 so x = 140
2007-03-13 09:17:06 · answer #3 · answered by Land Warrior 4 · 1⤊ 0⤋
(118 +138 + x)/3 = 132
x = 132*3 -118 - 138 = 396 - 256
x = 140
2007-03-13 09:19:23 · answer #4 · answered by bignose68 4 · 0⤊ 0⤋
132*3 = 396 (So u know what the three games must add up to)
396-118-138 = 140 (What the average must be minus the first two games)
140 is what she must score.
2007-03-13 09:16:38 · answer #5 · answered by Shi no Kyofu 2 · 1⤊ 0⤋
i think 14-6 + 132
am i right ? i dont know the game of bowling
2007-03-13 09:15:31 · answer #6 · answered by gjmb1960 7 · 0⤊ 2⤋