Posted by lori on Friday, September 30, 2011 at 12:51pm.
Hannah and francine have $120. Hannah and peter have $230. Peter has 6 times as much money as francine. How much money does hannah have?

math  Henry, Saturday, October 1, 2011 at 7:46pm
Francine has $X.
Peter has $6X.
Hannah hss $Y.
Eq1: X + Y = 120.
Eq2: 6X + Y = 230.
Multiply Eq1 by 1 and add the Eqs:
X + Y = 120
6X + Y = 230
Sum: 5x = 110,
X = $22.
X + Y = 120,
Y = 120  X = 120  22 = $98.

math  RAELEN, Monday, December 30, 2013 at 11:53pm
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