sampich31
sampich31 sampich31
  • 15-05-2018
  • Mathematics
contestada

Analyze the diagram below and complete the instructions that follow.

Solve for y.

Analyze the diagram below and complete the instructions that follow Solve for y class=

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sqdancefan
sqdancefan sqdancefan
  • 15-05-2018
The diagram gives rise to two equations in the two unknowns.
  3x = 90
  2x +3y = 90

The first equation tells you
  x = 90/3 = 30
Using that value in the second equation gives
  2*30 +3y = 90
  3y = 30 . . . . . . . . . subtract 60
  y = 30/3 = 10 . . . .. divide by 3

The value of y is ...
  y = 10
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