Martin bought 2 kilograms of bananas and 3 kilograms of oranges for $16.50. if oranges were 0.50 cents a kilogram more than the bananas, how much did the oranges and bananas cost per kilogram?

Bananas  = $3.6/ kg

Oranges  = $3.1/ kg

Step-by-step explanation:

Let represent Bananas by B and Oranges by O:

According to given conditions:

2B + 3O = $16.50  eq1

O + 0.50 = B eq2

By taking eq2:

O = B - 0.50 eq3

Now putting value of O in eq1 we get:

2B + 3(B - 0.50) = $16.50

By simplifying we get:

2B + 3B - 1.5 =  $16.50

5B = $(16.50 + 1.5)

5B = $18

B = $3.6

Putting value of B in eq3

O = $3.6 -0.50

O = $3.1

So the cost for Bananas And Oranges per kilogram are:

Bananas = B = $3.6

Oranges = O = $3.1

I hope it will help you!

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490