SOLUTION: the differnce between the length and width of one side of a rectangular cereal box is 9.8cm If the width is 21.8cm what is the lenght in cm. how many centimeters long is the p

Algebra ->  Equations -> SOLUTION: the differnce between the length and width of one side of a rectangular cereal box is 9.8cm If the width is 21.8cm what is the lenght in cm. how many centimeters long is the p      Log On


   

Question 103243: the differnce between the length and width of one side of a rectangular cereal box is 9.8cm If the width is 21.8cm what is the lenght in cm.

how many centimeters long is the perimeter of the rectangle?
Answer by BurningFlame_marc(77) About Me  (Show Source):
You can put this solution on YOUR website!
Hello!
let x= length of the rectangle

x-9.8=21.8
x=31.6

P=2l%2B2w
p=2(31.6)+2(21.8)
p=63.2+43.6
p=106.8
Final Answer:The length is 31.6cm. the perimeter is 106.8cm.