Wednesday, November 4, 2009

tut 3.3 solving linear systems by subsitution #4

#4
solution
d=distance
X=hours
d=-840x+5430
d=90
90=-840x+5430
840x=-90+5430
840x/840=5340/840
x=6.36 hours
the / equals a division sign

BY: TREVOR AND COLTON
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