Question

Keena bought a total of 16 apples and oranges for $20. Each orange was $2, and each apple was $1.

Make a graph to represent the cost of apples and oranges.

After examining the graphs representing both situations, it can be seen that Keena bought _____oranges and ____apples.

How many did she buy?

Answer 1

Keena bought
`4` oranges and
`12` apples

Explanation:

Let

x-----> the number of apples

y----> the number of oranges

we know that

`x+y=16` -----> equation A

`x+2y=20` -----> equation B

Using a graphing tool

Remember that the solution of the system of equations is the intersection point both graphs

The intersection point is
`(12,4)`

see the attached figure

therefore

Keena bought
`4` oranges and
`12` apples