Using proportions, it is found that the coordinates of the treasure as given as follows: (7.6, 8.8).
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
Researching the problem on the internet, the coordinates are as follows:
The treasure is buried between a rock and a tree in a 5:9 ratio, hence the expression is:

Hence, for the x-coordinate:

x - 3 = 5 x 13/14
x = 7.6.
For the y-coordinate:

y - 2 = 5 x 19/14
y = 8.8.
More can be learned about proportions at brainly.com/question/24372153
#SPJ1