Question

Собрали 300г земляники.Содержание воды в ней 99%. Ее оставили на солнце,она высохла,и воды в ней стало 98%. Сколько граммов составляет масса высохшей земляники?

Answer 1

Пропорция:
300--99%
х--98%
х=(300*98):99
х=296.9

Answer 2

300г-99%
х г-98%
300/х=99/98
х=300*98/99
х=29400/99
х=297г
Ответ: высохшая земляника составляет 297 грамм.

Answer 3

Calculation of the Mass of Dried Strawberries

To calculate the mass of the dried strawberries, we can use the information provided.

We started with 300 grams of strawberries with a water content of 99%. After leaving them in the sun, the water content decreased to 98%.

To find the mass of the dried strawberries, we can calculate the difference in water content and subtract it from the initial mass of the strawberries.

The initial water content was 99%, which means that 1% of the strawberries' mass was water. Therefore, the initial mass of water in the strawberries was 300 grams * (1/100) = 3 grams.

After drying, the water content decreased to 98%, which means that 2% of the dried strawberries' mass is water. Therefore, the mass of water in the dried strawberries is 3 grams * (2/100) = 0.06 grams.

To find the mass of the dried strawberries, we subtract the mass of water from the initial mass of the strawberries:

Mass of dried strawberries = Initial mass of strawberries - Mass of water Mass of dried strawberries = 300 grams - 0.06 grams = 299.94 grams

Therefore, the mass of the dried strawberries is approximately 299.94 grams.

Please note that the calculations provided are based on the information given and may not be entirely accurate due to rounding or other factors.