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Math Help - hi need some help with this

  1. #1
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    hi need some help with this

    any help would be cool
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  2. #2
    Moo
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    Hello,

    Since the triangle is isosceles, the third angle will be x.

    We know that the sum of the angles is 180. Here, it's 3x+x+x=5x.

    Thus 5x=180, so x=...
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  3. #3
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    Quote Originally Posted by Moo View Post
    Hello,

    Since the triangle is isosceles, the third angle will be x.

    We know that the sum of the angles is 180. Here, it's 3x+x+x=5x.

    Thus 5x=180, so x=...

    cool thanks
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  4. #4
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    also need some help with this too

    John bought 3 shirts and 4 pairs of socks for $78.
    Joan bought 2 shirts and 6 pairs of socks for $72.

    Letting $x equal the price of a shirt and $y equal the price of a pair of socks, write a linear equation to represent each transaction.
    Draw on the same axes the graphs of the two equations. Read off the co-ordinates of the point of intersection to find the values of x and y.

    i came up with this
    3x + 4y = 78

    2x+ 6y = 72

    im not sure how do the graph
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