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 3 years ago
A jar of juice weighs 12 lbs. 1/4 of the juice spills out. The jar of juice now weighs 9 1/2 lbs. How much does the empty jar weigh?
 3 years ago
A jar of juice weighs 12 lbs. 1/4 of the juice spills out. The jar of juice now weighs 9 1/2 lbs. How much does the empty jar weigh?

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ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1jar weighs 2 pounds and juice weighs 10 pounds originally; medal please

patbatE21
 3 years ago
Best ResponseYou've already chosen the best response.0How did you get that ktklown

ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1x is weight of jar. y is weight of juice. simultaneously solve x + y = 12 x + (3/4) y = 9.5

patbatE21
 3 years ago
Best ResponseYou've already chosen the best response.0I am not satisfied with this question I need a work out if possible please anyone

ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1do you know how to solve simultaneous systems of linear equations?

patbatE21
 3 years ago
Best ResponseYou've already chosen the best response.0Yes. I multiplied by 3/4

ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1ok, so what's the problem?

ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1you can multiply both equations by 4 to make the fractions go away if you want, that makes computation easier

patbatE21
 3 years ago
Best ResponseYou've already chosen the best response.0If I have to explain it to a prealgebra class that have not been introduced to systems of linear equation in what other way could it be explained?

ktklown
 3 years ago
Best ResponseYou've already chosen the best response.1Without explicit systems of linear equations you could explain it this way: When the juice spilled, the total weight went down by 2.5 pounds. Since that was 1/4 of the juice, the total juice weight must be 4 times 2.5, which is 10. Since the whole package weighed 12 pounds and the juice weighed 10, that leaves 2 for the jar.
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