Farmer brown planted corn and wheat on his 1200 acres of land, m corn is 275$ per acre and wheat is 135$ per acre. If farmer browns total cost was 257,200$ how man acres of corn did he plant?

Answer 1

c+w = 1200

135c + 135w = 135(1200)

275c + 135w = 257,200

135c + 135w = 162,000

140c = 95,200

c = 95200/140

c= 680 acres of corn

w = 1200-680 = 520 acres of wheat

275(680) + 135(520) = 187,000+70,200 = 257,200