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29 November, 22:26

Bob ate 10 carrots and 7 hershey's kisses and the total calories were 263. fred ate 4 carrots and 8 hershey's kisses and the total calories were 230. how many calories are in a carrot and a hershey's kiss? (the answer is not a scientific truth, only made up numbers!)

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  1. 30 November, 00:36
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    Two equations

    let c the calories in carrot

    let h the calories in hershey's kisses

    4c + 8h = 230 eq 1

    10 c + 7 h = 263 eq 2

    to solve the solution we multiply eq 1 by 10

    we multiply eq 2 by 4

    40 c + 80 h = 2300

    40c + 28 h = 1052

    we subtract the two equations we get

    52 h = 1248

    h = 24

    and so in replacing h = 24 in the equation we get c = 9.5
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