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posledela
3 years ago
10

A tank 4/5 full needs 75 litres to fill it up.how many litres does it hold when full

Mathematics
1 answer:
Ann [662]3 years ago
8 0
X - the volume of the tank

\frac{4}{5}x+75=x \\
75=x-\frac{4}{5}x \\
75=\frac{1}{5}x  \ \ \ |\times 5 \\
x=375

The tank holds 375 liters when full.
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Step-by-step explanation:

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Step-by-step explanation:

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