why are the solutions to the proportions 40/8=x/40=10/8 and x/40=10/8 the same? a. because both result in the equation 8x=400,which simplifies to x=5 b. because both result in the equation 8x=400,which simplifies to x=50 c. b.because both result in the equation 40x=80,which simplifies to x=2 d. because both result in the equation 40x=80,which simplifies to x=20