Question 1013829
.
the second side of a triangle is 3 times the first side. the third side is 2 and a half times the first side. 
the perimeter is 60 feet, find the length of each side.
----------------------------------------------


<pre>
Let a be the length of the 1-st side,
    b be that of the 2-nd side,
    c be that of the third side.

From the condition, b = 3a, c = 2.5a, and you have an equation

a + b + c = p,   or

a + 3a + 2.5a = 60,   or

6.5a = 60.

Hence, a = {{{60/6.5}}} 9.231 ft.
</pre>