Respuesta :
Approx. 53 rings will the tree have when its diameter is 20 inches.
What is the formula of unitary method?
The unitary method is used to find the value of a single unit from a given multiple.
For example: 50 boxes are of 500 rupees so what will be the price of 1 box.
50 boxes → Rs. 500
1 box → 500/50
1 box → Rs. 10
This method is mostly used for ratio and proportion concept.
Here, We have given that a maple tree with a diameter of 12 inches has 32 rings.
Total numbers of rings when its diameter is 20 inches.
so, using unitary method:
12 inches → 32 rings
1 inch → 32/12
20 inches → (32 x 20) / 12
20 inches → 53.3333 rings
taking the nearest possible whole number
20 inches → 53 rings
Hence, Approx. 53 rings will the tree have when its diameter is 20 inches.
Learn more about "Unitary Method" from here: https://brainly.com/question/28276953
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