Algebra-2

To describe the situation with a system of equations, let's define the variables:

1.Let ( r ) represent the price per pound of rice.

2.Let ( b ) represent the price per pound of beans.

3.Let ( l ) represent the price per pound of lentils.

 

Now, we can create equations based on the purchases David made:

David purchases 2 lbs of rice and 1 lb of beans for $6.00:

2r + 1b = 6 (Equation 1)

 

David buys 1 lb of rice and 2 lbs of lentils for $4.00: