anonymous
  • anonymous
Brenda’s scores on the first three of four 100-point science tests were 95, 92, and 89. What score does she need on her fourth science test to ensure an average score of at least 93? please help me
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
92
Vocaloid
  • Vocaloid
mean = (sum of scores)/(number of tests) 93 = (95+92+89+x)/4 solve for x

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