x+y = 47
x-y = 21
------------ add together
2x =68 divide by 2
x=34
34+ y = 47
subtract 34 from each side
y = 13
the two numbers are 34 and 13
Answer:
16
Step-by-step explanation:
perimeter of B = 21
divide by 3 to get each side: 21/3 = 7 = Y
perimeter of hexagon is 50. subtract 2Y: 50 - 14 = 36
divide 36 by 4 to find X = 9
add X + Y
72
brainliest please
