Algebra(weighted average)

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Help pleaasee!!!..my answer to this problem was 42.5..just need to know if im correct

The girl's basketball team has played quite well this year. Their statistics for various shots are given below:

They made 30% of their 3-point shots and take an average of twenty-one 3 point shots per game.

They made 45% of their 2-point shots and take an average of thirty 2-point shots per game.

They made 75%of their free throws and take an average of fifteen free throws per game.

Determine their average score

  • Algebra(weighted average) -

    avg=.3*21*3 + .45*30*2 + .75*15*1=
    = 18.9 + 27 + 11.25

    I don't get your answer.

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