iwanttogotostanford
  • iwanttogotostanford
PRACTICE ACT MATH Q NEED HEL URGENT: So far, a student has earned the following scores on four 100-point tests this grading period: 65, 73, 81, and 82. What score must the student earn on the fifth and lat 100-point test of the grading period to earn an average test grade of 80 for the 5 tests?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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iwanttogotostanford
  • iwanttogotostanford
@zepdrix @Nnesha @jim_thompson5910
anonymous
  • anonymous
i got you
anonymous
  • anonymous
so add up those scores and you get 301 right?

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anonymous
  • anonymous
so 301/4 is your average of 75.25
iwanttogotostanford
  • iwanttogotostanford
yes
iwanttogotostanford
  • iwanttogotostanford
i know the answer i just need to know the process
anonymous
  • anonymous
then (301+x)/5 =80
anonymous
  • anonymous
then solve for x
anonymous
  • anonymous
cool?
iwanttogotostanford
  • iwanttogotostanford
how do I solve for X lol
anonymous
  • anonymous
5*80 then subtract 301 to get 99
iwanttogotostanford
  • iwanttogotostanford
oh ok thanks!!
anonymous
  • anonymous
no problem

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