X = smaller number, y = larger number
x + y = 15.....x = 15 - y
4x = 2y - 60
4(15 - y) = 2y - 60
60 - 4y = 2y - 60
60 + 60 = 2y + 4y
120 = 6y
120/6 = y
20 = y <==== larger number is 20
x + y = 15
x + 20 = 15
x = 15 - 20
x = - 5
First polygon side is 3.96
the second polygon side is 3.75
C
because if you substitute 4 into x you do 4+8 thats 12
3(4) = 12
so therefore its C
Step-by-step explanation:
5x + 3 = x + 11
4x=8
x=2
!!!!!
