Question

The perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7.

Which lengths make sense for possible values of b?

Answer 1

a=7.85-1/2^b

Explanation:

2a=15.7-b Move variable to the right side and change its sign

2a=15.7-b Divide both sides of the equation by 2

a=7.85-1/2^b The final solution for a is