anonymous
  • anonymous
Sam scored 43, 48, and 42 points on three tests. How many points should he get on the fourth test to get an average score of 50?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
(43+48+42+x) divided by 4 = 50
anonymous
  • anonymous
multiply each side of the equation by 4
anonymous
  • anonymous
43+48+42+x=200

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anonymous
  • anonymous
then add like terms
anonymous
  • anonymous
133+x=200
anonymous
  • anonymous
then subtract 133 from both sides
anonymous
  • anonymous
i still lost
anonymous
  • anonymous
to get x=67
ali2x2
  • ali2x2
\[50=43+48+42+x/4\]

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