a tank 4/5 full needs 75 liters to fill it up. how many liters does it hold when full? - help please :3 xx

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03-09-2014
Mathematics

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a tank 4/5 full needs 75 liters to fill it up. how many liters does it hold when full? - help please :3 xx

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mariamikayla mariamikayla · Answer 1 · 2014-09-03T11:05:27+02:00

mariamikayla mariamikayla

03-09-2014

[tex]x- \cantity \ of \ substance \ contained \ by \ the \ tank \\ \\ \frac{4x}{5}+75= \frac{5x}{5} => \frac{x}{5}=75 \\ \\ \boxed{x=5*75=375 \ litres}[/tex]

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waniibunny waniibunny · Answer 2 · 2014-09-03T11:42:06+02:00

waniibunny waniibunny

03-09-2014

full tank = 1 = 5/5
5/5 - 4/5 = 1/5
1/5 = 75
5/5 = 75 x 5 = 375
hope this helps(:

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