SOLUTION: A leather coin purse has the shape of a triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal side

Question 329325: A leather coin purse has the shape of a triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides. The perimeter is 28.5 centimeters. Find the lengths of the sides.
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
The question describes an isosceles triangle.
The perimeter of an isosceles triangle is found by using P = 2a + b, where a represents the two equal sides and b represents the base.
I will give you the equation. I think you can solve now.
28.5 = 2a + (3a/2) - 3
Can you take it from here?
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