if I buy 2 apples and 6 oranges, I will spend $5.60. However, if I buy 6 apples and 2 oranges, I will spend $4.80. How much does one orange cost?

Question

anonymous · Answer

it c right?

campbell_st · Answer

2a + 6o = 5.60       (1)
6a + 2o = 4.80       (2)

solve via the elimination method

3 x (1) - (2)

             6a + 18o = 16.80
    -        6a + 2o    =   4.80
             ----------------

                       16o = 12

                            o = $0.75