Oranges cost $4.25 for 5 and apples cost $4.50 for 6. What would be the total cost of 3 oranges and 2 apples?

Question

My teacher never taught me how to solve this ):

Answer 1

We'll let O be the price of an orange, and A be the price of an apple

So 5 oranges cost $4.25. To get the cost of a single orange, we just divide by 5.

So O = $4.25 / 5 = $0.85

You can solve for the price of an apple similarly.

Lastly to get the cost of 3 oranges and 2 apples, that's just 3*O + 2*A

Answer 2

First you need to find the cost per each fruit.

One orange = x = 4.25/5

One Apple = y = 4.50/6

Then the total cost = 3x + 2y

I'll let you do the math