Question

СРОЧНО!!!!!!! 50 БАЛЛОВ! Вода наполняет ванну через кран за 3 часа, и вытекает через слив за 5 часов. За какое время ванна наполнится водой, если открыть слив ванны?

Answer 1

Ответ:

7 целых 1/2

Пошаговое объяснение:

проверенно в билим ленде

Answer 2

Ответ:

7 1/2

Пошаговое объяснение:

Answer 3

Calculation of Time to Fill the Bathtub

To calculate the time it takes to fill the bathtub, we need to consider the rate at which water flows into the bathtub and the rate at which it flows out through the drain.

Given: - Time taken to fill the bathtub through the faucet: 3 hours - Time taken for the water to drain out through the drain: 5 hours

Let's assume that the rate of water flow into the bathtub is constant.

To find the time it takes to fill the bathtub when the drain is open, we can use the concept of rates.

Let's denote the rate of water flow into the bathtub as R (in units of volume per hour) and the rate of water flow out through the drain as r (in units of volume per hour).

Since the rate of water flow into the bathtub is constant, we can say that the volume of water filled in the bathtub in 1 hour is R.

Similarly, the volume of water drained out of the bathtub in 1 hour is r.

Now, let's consider the time it takes to fill the bathtub when the drain is open.

In 1 hour, the net volume of water filled in the bathtub is R - r (since some water is being drained out).

Therefore, the time it takes to fill the bathtub when the drain is open can be calculated as:

Time to fill the bathtub = Volume of the bathtub / (R - r)

However, we don't have the specific values for R (rate of water flow into the bathtub) and r (rate of water flow out through the drain) in this case. Without these values, we cannot calculate the exact time it takes to fill the bathtub when the drain is open.

If you have the specific values for R and r, please provide them, and I'll be happy to help you with the calculation.