Here are two sets of numbers, A and B. Set A: 200, 160, 104, 100

Set B: 270, 400, 483, 300, x

Mean of Set A : mean of Set B = 3 : 8

Work out the value of x

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

it is 10.6 according to my calculations

step-by-step explanation: hi!