The sum of two numbers is 40. The larger number (x) is 1.5 times the smaller number (y). Which system of equations models this situation? X + y = 40 x + 1.5y = 0 B) x + y = 40 1.5x + y = 0 X + y = 40 X- 1.5y = 0 D) X + y = 40 1.5x - y = 0

the answer is 28

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

3

step-by-step explanation:

1. supplementary angles

2. acd and bcd

step-by-step explanation: