SOLUTION: Could some one please show me how to solve this equation. I am not sure how to turn it in to an equation. The diameter of the milky way disk is approximately {{{9x10^20)}}}meters.

SOLUTION: Could some one please show me how to solve this equation. I am not sure how to turn it in to an equation. The diameter of the milky way disk is approximately {{{9x10^20)}}}meters.

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Question 93841: Could some one please show me how to solve this equation. I am not sure how to turn it in to an equation.
The diameter of the milky way disk is approximately meters. How long does ti take light, traveling at m/year to travel across the diameter of the milky way?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
distance=rate*time so time=distance/rate ... t=(9x10^20 m)/(10^16 m/y) ... t=9x10^4 y
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