SOLUTION: A box containing 5 oranges weighs 1.678 kilograms. The same box with 10 oranges in it weighs 2.278 kilograms. How much does the empty box weigh? (Assume all oranges weigh the sam

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Question 313593: A box containing 5 oranges weighs 1.678 kilograms. The same box with 10
oranges in it weighs 2.278 kilograms. How much does the empty box weigh?
(Assume all oranges weigh the same.)
(A) 0.300 kg (B) 0.539 kg (C) 0.600 kg (D) 1.078 kg (E) 1.356 kg
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
10X+Y=2.278
5X+Y=1.678 SUBTRACT THIS EQUATION
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5X=.6
X=.6/5
X=.12 KG. WEIGHT OF AN ORANGE.
10*.12+Y=2.278
1.2+Y=2.278
Y=2.278-1.2
Y=1.078 KG. WEIGHT OF THE BOX.
ANSWER D).