Question

sia weights 4.5 kg more then Raima. if their total weight is 140 kg, find sia weight​

Answer 1

Answer:

72.25 kg

Step-by-step explanation:

Raima's weight - x

Sia's weight - x+4.5

Equation -   x+x+4.5=140

2x=135.5

x = 135.5/2

x= 67.75

Sia's weight = 67.75 + 4.5 = 72.25

Answer 2

Answer:

77.25

x+ y = 140

x= y+ 4.5

x-y = 4.5

x+y= 140

x-y = 4.5

2x= 144.5

x= 77.25