2s^3 – 4r^1 r = 1 and s = 5

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To find the value of r, we can substitute the given value of s into the equation 2s^3 – 4r^1 r = 1 and solve for r.

Given:
s = 5

Substitute s = 5 into the equation:
2(5)^3 – 4r^1 r = 1

Simplify:
2(125) – 4r = 1
250 – 4r = 1

Now, let's isolate the term with r by subtracting 250 from both sides of the equation:
-4r = 1 - 250
-4r = -249

To solve for r, divide both sides of the equation by -4:
r = -249 / -4
r = 62.25

Therefore, when s = 5, the value of r is 62.25.