A train has a ratio of 5:6 men to women. At a stop 8 men get off the train. The ratio of men to women is now 3:4. How many peopl
e are still on the train?
1 answer:
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x = ± 8
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Given
4x² - 256 = 0 ( add 256 to both sides )
4x² = 256 ( divide both sides by 4 )
x² = 64 ( take the square root of both sides )
x = ± = ± 8
Solutions are x = - 8, x = 8