anonymous
  • anonymous
A physical education class has three times as many girls as boys. During a class basketball game, the girls average 18 points each, and the class as a whole averages 17 points per person. How many points does each boy score on average?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
a trick is to use actual numbers. say there is only one boy and therefore there must be 3 girls, for a total of 4
experimentX
  • experimentX
so quite opposite than the last illustration huh?
anonymous
  • anonymous
then \[\frac{18\times 3+x}{4}=17\] \[54+x=68\] \[x=14\]

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anonymous
  • anonymous
so the lone boy scored 14 points. since it doesn't matter for the problem how many there are, this is the answer
anonymous
  • anonymous
I got it now. Thank you
Ashtorah13
  • Ashtorah13
but why do you multiply 18 and 3?

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