Q. A box of cookies has 5 chocolate chip, 5 peanut butter, and 5 sugar in it.
1 answer:
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To solve this we must set up a system of equations where x is the number of calories in a peice of cake, and y is the number of calories in a scoop of ice cream. when we do this, we get 
and 
. So, to solve this sytem, you can use many methods, but I will use substitution. if we substitute the first equation for x in the second, we get 
. solving for y, we get 
. then substituting this in to the first equation, we get 
. So the answer is there are 460 calories in a peice of cake and 160 calories in a scoop of ice cream.
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