Answer:
25
Step-by-step explanation:
Use the two different triangles
Equation
40/(40 + 24) = x / (x + 15) Combine all that is feasible.
40/64 = x /(x + 15) Cross multiply
64x = 40 * ( x + 15) Remove the brackets
64x = 40x + 600 Subtract 40x from both sides
64x - 40x = 600
24x = 600 Divide by 24
x = 600/24
x = 25
