Homework Help: algebra 1A

Posted by loraine on Monday, May 14, 2012 at 12:12am.

a family travels to Bryce Canyon for three days. on the first day, they drive 150 miles. on the second day, they drive 190 miles. what is the least number of miles they drove on the third day if their average number of miles per day was at least 180?

algebra 1A - PsyDAG, Monday, May 14, 2012 at 11:42am
Mean = Σx/n

180 = (150+190+x)/3

Solve for x.

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