A truck contains 150 small packages, some weighing 1kg each and some weighing 2kg each. How many packages weighing 2kg each are in the truck if the total weigh of all the packages is 264 kg?

Question

anonymous · Answer

The answer choices are 36, 52, 88, 124, or 114.

anonymous · Answer

x+y = 150
1x+2y = 264 (solve simultaneously)
y=114

anonymous · Answer

How do you solve 1x+2y=264 ?

anonymous · Answer

1x + 2y = 264
-(x+y = 150)           *to eliminate variable x
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      y= 114

anonymous · Answer

Ohh! ok thank you.