Question

Из первого крана бак наполняется за 4 минуты а из второго за 12 минут за сколько минут наполнится бак если открыть оба крана одновременно? помогите пожалуйста срочно нужна ваша помощь :-( :-(

Answer 1

4 + 12 = 16(м)
16÷2=8(м)

Answer 2

1) 12+4=16
2)16/2=8
ответ :8 мин.

Answer 3

Solving for the Time to Fill the Tank

To find out how long it will take to fill the tank when both taps are open, we can use the concept of work done. The rate of work done by the first tap is 1/4 of the tank per minute, and the rate of work done by the second tap is 1/12 of the tank per minute. When both taps are open, their rates of work are additive.

Calculating the Combined Rate

The combined rate of the two taps working together is the sum of their individual rates. Therefore, the combined rate is: 1/4 + 1/12 = 3/12 + 1/12 = 4/12 = 1/3 of the tank per minute.

Determining the Time to Fill the Tank

To find the time it takes to fill the tank when both taps are open, we can use the formula: Time = Amount / Rate

Where: - Amount = 1 tank (the whole tank) - Rate = 1/3 tank per minute

Calculation

Plugging in the values, we get: Time = 1 / (1/3) = 3 minutes

So, when both taps are open, the tank will be filled in 3 minutes.

I hope this helps! If you have any other questions, feel free to ask.