Question

В семенах подсолнечника нового сорта содержится 49.5% масла. Сколько килограммов таких семян надо взять,чтобы в них содержалось 29.7 кг масла? ПОМОГИТЕ ПОЖАЛУЙСТА!МЕНЯ ПРОСТО В ШКОЛЕ НЕ БЫЛО. СРОЧНО

Answer 1

Х---100% 29,7--49,5%
х=29,7*100%:49,5%=60 кг. ответ: 60 кг

Answer 2

To find out how many kilograms of sunflower seeds of the new variety you need to take in order to contain 29.7 kg of oil, we can set up a proportion using the percentages of oil content.

Let's assume that x represents the number of kilograms of sunflower seeds needed.

The proportion can be set up as follows:

(49.5% / 100%) = (29.7 kg / x)

To solve for x, we can cross-multiply and then divide:

(49.5% * x) = (29.7 kg * 100%)

x = (29.7 kg * 100%) / 49.5%

Now we can calculate the value of x:

x = (29.7 kg * 100%) / 49.5% = 60 kg

Therefore, you would need to take 60 kilograms of sunflower seeds of the new variety in order to obtain 29.7 kilograms of oil.

I hope this helps! Let me know if you have any further questions.