Need help on quick problem?

A landscape architect plans to enclose a 1300 square foot rectangular region in a botanical garden. She will use shrubs costing $25 per foot along three sides and fencing costing $10 per foot along the north side.





(a) If x is the length of fencing used, write a formula for the total cost in terms of x only.


C(x) =





(b) Find the length of fence that will minimize the total cost.


x = feet





(c) Find the minimum total cost. Give your answer to the nearest penny

Need help on quick problem?
a) C(x)= 3*25*x+ 1*10*x


= 75x+10x





C(x)=75x+10x





b) Length is 1300 ft. There is four sides which equalls 4x.





4x=1300ft


x=1300ft/4


x=325 ft





c) C(x)= 75(325)+10(325)


= 10590125


cost is $10,590,125.00