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Weighted averages

Problem

Point A is at (9,10) and point B is at (5,2).
If point M=(1t)A+tB=(7,6), what is the value of t?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi
You can use the interactive diagram below to help you :
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