The lengths of the legs of an isosceles triangle are integers. the base is
half as long as each leg. what are the possible lengths of the legs if the
perimeter is between 6 units and 16 units?

pls ask

there are infinitely many solutions.

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.