The value of y in the expression of the radius of the given circle is: 1.1.
What is the Radius of a Circle?
Radius of a circle = 1/2(diameter of circle).
Given:
Radius = y + 2.7 mm
Diameter = 7 3/5 = 7.6 mm
Thus:
y + 2.7 = 1/2(7.6)
y + 2.7 = 3.8
Subtract 2.7 from both sides
y = 3.8 - 2.7
y = 1.1
Thus, the value of y in the expression of the radius of the given circle is: 1.1.
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