Examples of Math Problems: bailey's mean score on 5 assessments is 73. what does she need to make on her next 2 assessments for her average to be at least a 78?

Saturday, January 3, 2015

bailey's mean score on 5 assessments is 73. what does she need to make on her next 2 assessments for her average to be at least a 78?

This is a weighted average.
%285%2A73%2B2%2Ax%29%2F7=78

%285%2A73%2B2%2Ax%29%2F7=78

365%2B2%2Ax=546

2x=181

Her two scores must add to 181

No comments:

Subscribe to: Post Comments (Atom)