a farmer planted 4 acres of soybeans for every 9 acres of corn. he planted a total of 400 acres. how many total acres of soybean did he plant? (Round answer to the nearest whole acre.)
Lets have 4x acres of soybeans , then it is going to be 9x acres of corn (4x/9x=4/9) Altogether we have (4x+9x) acres Altogether he planted 400 acres So, we can write 4x+9x=400 13x=400 x=400/13
4x acres of soybeans 4*400/13≈123 acres of soybeans
