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2 years ago

7

7. This year, the water in a reservoir dropped by 60%. For the original water level to be restored next year, by what percent mu

st the remaining reserves increase?

1 answer:

ale4655 [162]2 years ago

8 0

Answer:

Given: Water in a reservoir dropped by 60%

Step-by-step explanation:

let the total water level of reservoir be 100.

then, in first year

the water reservoir dropped = 60% of 100

= $\frac{60}{100}$ * 100

= 60

therefore, total water level needed to be restored till next year= 100

remaining water level to restore till next year= 100-60

=40

percentage= $\frac{40}{100}$ * 100

=40%

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It looks like the ODE is

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