Question

СРОЧНО!!! В швейцарском городе Кляйнштадте коренные жители говорят на немецком и французском языках, причем каждый знает хотя бы один из языков. Также в городе проживает 20 мигрантов, которые не знают ни немецкого, ни французского. Среди коренных жителей по-французски говорят 85%, а на обоих языках (немецком и французском) – 60%. Доля говорящих на немецком языке составляет 25/34​​ от общего числа жителей (включая мигрантов). Сколько жителей в этом городе? В ответе укажите общее количество жителей, включая мигрантов

Answer 1

Ответ:

1020

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(х+20)*25/34 + 0.85х - 0.6x = х

коренных жителей 1000

всего жителей 1020

Пошаговое объяснение:

Answer 2

Вот надеюсь это то
)0(0)00)0)0)0)0)0)00)0)0)0)0)00)0(0(0(0(

Answer 3

According to the information provided, the town of Kleinstadt in Switzerland has native residents who speak both German and French. Each native resident knows at least one of these languages. Additionally, there are 20 migrants living in the town who do not speak either German or French. Among the native residents, 85% speak French, and 60% speak both German and French. The proportion of people speaking German is 25/34 of the total population, including migrants. We need to determine the total number of residents in the town, including migrants.

To solve this problem, we can use algebraic equations. Let's denote the total number of residents in the town as "x".

Equations:

1. The number of native residents who speak French: 85% of x = 0.85x 2. The number of native residents who speak both German and French: 60% of x = 0.6x 3. The number of native residents who speak German: 25/34 of x = (25/34)x 4. The number of migrants: 20

Solution:

To find the total number of residents, we need to sum up the number of native residents and migrants:

x = (0.85x) + (0.6x) + (25/34)x + 20

To solve this equation, we can combine like terms:

x = 0.85x + 0.6x + (25/34)x + 20

To simplify the equation, we can find a common denominator for the fractions:

x = (34/34)(0.85x) + (34/34)(0.6x) + (25/34)x + 20

x = (28.9/34)x + (20.4/34)x + (25/34)x + 20

Now, we can combine the terms with "x":

x = (28.9/34 + 20.4/34 + 25/34)x + 20

x = (74.3/34)x + 20

To isolate "x", we can subtract (74.3/34)x from both sides:

x - (74.3/34)x = 20

(34/34)x - (74.3/34)x = 20

(34 - 74.3)/34x = 20

-40.3/34x = 20

To solve for "x", we can multiply both sides by 34/(-40.3):

x = (20)(34)/(-40.3)

x ≈ -17.91

Since the number of residents cannot be negative, it seems there might be an error in the given information or calculations. Please double-check the information provided or the calculations made.