Problema Solution
the length of a rectangular piece of land is 9cm more than three times its width the perimeter is 418cm find its dimensions
Answer provided by our tutors
Let
l = the length of the rectangular piece of land
w = the width of the rectangular piece of land
P = 418 cm the perimeter
The length of a rectangular piece of land is 9 cm more than three times it's width:
l = 9 + 3w
The perimeter is 418 cm:
2(l + w) = 418
We have the following system of equations:
l = 9 + 3w
2(l + w) = 418
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l = 159 cm
w = 50 cm
The dimensions of the rectangular piece of land is: the length is 159 cm and the width is 50 cm.