Vicki111 Vicki111
  • 20-09-2017
  • Mathematics
contestada

The average of your 3 quiz grades is 17 points. Two of your quiz grades are 14 points and 19 points. Write and solve an equation to find the third quiz grade.

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texaschic101
texaschic101 texaschic101
  • 20-09-2017
(14 + 19 + x) / 3 = 17
(33 + x) / 3 = 17
33 + x = 17 * 3
33 + x = 51
x = 51 - 33
x = 18 <== third quiz grade
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