Math

Arthur is trying to figure out the heights of 3 of his friends. Here are the facts he know:

1. The sum of the heighta oglf these 3 friends is 17 fast 8 inches.

2. The shortest friends is 5 feet 6 inches tall
3. The other 2 friends differ in height by 4 inches

How tall is the tallest friend?

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  1. Alright let friend one be represented by x, freind two by y and friend three by z.

    So 17feet 8 inches needs to be converted.

    Write out all that you know in algebra formulas.

    x+y+z=
    x=
    y=
    z=

    and solve. Or just use the first formula and solve for each value by inserting the other formulas.

    Dyou geddit?

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  2. Not really

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  3. Okay so you have

    x+y+z= 17.666 (feet)

    x= 5.72 (feet)
    y= z-4
    z= y+4

    then you put those values into formula one

    x+y+z=17.666
    5.72+y+z=17.666

    then you move the x value over the equals sign

    y+z=17.666-5.72

    Do you see where I'm going?

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