Question

4. Аида может собрать клубнику за 10 минут. А Вика за 30 минут. За сколько минут Аида и Вика соберут клубнику ,если они будут работать вместе? по формуле с решением​

Answer 1

Ответ:

Пошаговое объяснение:

1 : 10 = 1/10 часть соберет Аида за 1 мин

1: 30 = 1/30 часть соберет Вика за 1 минуту

1/10 + 1/30 = 3/30 +1/30= 4/30 части соберут вместе за 1 минуту

1 : 4/30= 1 *30/4= 7,5 минуты Аида и Вика соберут клубнику ,если они будут работать вместе

Answer 2

Problem Analysis

We are given that Aida can pick strawberries in 10 minutes and Vika can pick strawberries in 30 minutes. We need to find out how long it will take for Aida and Vika to pick strawberries together.

Solution

To solve this problem, we can use the formula for the rate of work. The rate of work is defined as the amount of work done per unit of time. In this case, the work is picking strawberries, and the time is measured in minutes.

Let's assume that Aida's rate of work is x strawberries per minute, and Vika's rate of work is y strawberries per minute. We can set up the following equation based on the given information:

Aida's work rate: x strawberries/minute Vika's work rate: y strawberries/minute

According to the problem, Aida can pick strawberries in 10 minutes, so her work rate is: x = 1/10 strawberries/minute Similarly, Vika can pick strawberries in 30 minutes, so her work rate is: y = 1/30 strawberries/minute To find the combined work rate when Aida and Vika work together, we can add their individual work rates: x + y = 1/10 + 1/30 strawberries/minute

To find the time it takes for Aida and Vika to pick strawberries together, we can use the formula: Time = 1 / (x + y) minutes

Substituting the values of x and y into the formula, we get: Time = 1 / (1/10 + 1/30) minutes

Simplifying the expression, we have: Time = 1 / (3/30 + 1/30) minutes Time = 1 / (4/30) minutes Time = 30 / 4 minutes Time = 7.5 minutes

Therefore, it will take Aida and Vika 7.5 minutes to pick strawberries together.

Answer

Aida and Vika will be able to pick strawberries together in 7.5 minutes.

References

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