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3 years ago

MARKING BRAINLIST! A blu-ray has a circumference of 25.12 inches. What is the radius of the blu-ray?

Mathematics

1 answer:

Genrish500 [490]3 years ago

6 0

Answer: 3.99797217..

Step-by-step explanation:

formula for the circumference is pi x diameter

divide circumference by pi

25.12/pi = 7.9959443...

divide that by two to get the radius which would be 3.997972...

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The attachments below contains step-by-step explanations of the guessing and checking approach that would be used to arrive at the answer.

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3 years ago

X + 2y = 3<br> 5x + 3y = 8

Lerok [7]

X + 2y = 3 Solve the Equation
- 2y -2y
x = 3 - 2y

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15 - 7y = 8
-15 -15
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x = 1

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3 years ago