A square pyramid has a base area of 16 cm2. The pyramid's total surface area is 80 cm2. What is the area of each triangular face?
A: 16cm2

B: 24cm2

C: 32cm2

D: 64cm2

x=30

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.