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06-10-2016
Mathematics

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George found he blinked 85 times in 15mts at this rate how many seconds passed during 51 blinks?

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thebrainsterkid thebrainsterkid

07-10-2016

9 seconds

i did this to solve: I crossed multiplied this [tex]\frac{85}{15} [/tex] with [tex]\frac{51}{x}[/tex]

so 15 x 51=765 divided by 85 = 9

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