Answer:
x + y = 500
42x + 28y = 16800
Explanation:
The total area of the land is 500 acres. The cost for cultivating corn is $42 per acre and the cost for cultivating wheat is $28 per acre. The total amount available is 16,800.
Let x denote the number of acres of corn and y the number of acres of wheat.
Since we know that all of the land needs to be used, our first equation would be:
x + y = 500
We also know that the whole amount available needs to be spent, therefore our second equation would be:
42x + 28y = 16800.
Therefore, our two equations would be
x + y = 500
42x + 28y = 16800.
To know the amount of wheat and corn, we need to solve these equations.