Question 1084134
a farmer has 725 yf of fencing to enclose a rectangular pasture for her goats. Since one side of the pasture borders a river, that side does not need to be fenced. the sides of length must be twice as long as side b. find thr dimensions of the rectangular pasture.
<pre>Obviously, shorter side = b
Then each longer side = 2b
We then get: b + 2(2b) = 725
5b = 725
Length of shorter side, or b: {{{highlight_green(matrix(1,4, 725/5, "=", 145, units))}}} 
Length of a longer side, or 2b: {{{highlight_green(matrix(1,6, 2, "*", 725/5, "=", 290, units))}}}