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Solve the system of equations. 2x+2y+7z=9, 2x+6y+5z=7, 5x+2y+4z=9. a.x=3 y=-2 z=3 b.x=1 y=0 z=1 c.x=2 y=-1 z=0 d. x=0 y=1 z=2
answered
Apr 29, 2018
Mathematics
high-school
1
vote
9.4k
views
the bottom of a shopping bag measures 8 inches by 10 inches and the height is 12 inches. how much paper is needed to make the bag?
answered
Aug 5, 2017
Mathematics
middle-school
6
votes
81.1k
views
Marsha brought 1 lb. 11 oz. of roast beef and 2 pounds of corn beef. How much more corn beef did she buy than roast beef
answered
Apr 1, 2017
Mathematics
middle-school
5
votes
10.1k
views
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