Question

6 Маси тата, мами і сина разом становлять 202,5 кг і відносяться як 7 : 5:3. Яка маса кожного члена родини? А. 93 кг; 68,5 кг; 41 кг Б. 96,5 кг; 66,5 кг; 39,5 кг В. 94,5 кг; 67,5 кг; 40,5 кг Г. 92,5 кг; 68,5 кг; 41,5 кг срочнооо​

Answer 1

Ответ:

Пошаговое объяснение:

7+5+3=15

202,5÷15=13,5 кг 1 часть

13,5×7=94,5 тато

13,5×5=67,5кг мама

13,5×3=40,5кг сын

Answer 2

Problem Analysis

We are given that the combined weight of a mother, father, and son is 202.5 kg, and their weights are in the ratio of 7:5:3. We need to find the weight of each family member.

Solution

Let's assume the weight of the mother, father, and son as 7x, 5x, and 3x respectively, where x is a constant.

According to the given information, the sum of their weights is 202.5 kg. So we can write the equation:

7x + 5x + 3x = 202.5

Simplifying the equation, we get:

15x = 202.5

Now, we can solve for x by dividing both sides of the equation by 15:

x = 202.5 / 15

Calculating the value of x, we find:

x = 13.5

Now, we can find the weight of each family member by substituting the value of x back into the equations:

Mother's weight = 7x = 7 * 13.5 = 94.5 kg Father's weight = 5x = 5 * 13.5 = 67.5 kg Son's weight = 3x = 3 * 13.5 = 40.5 kg

Therefore, the weight of each family member is: - Mother: 94.5 kg - Father: 67.5 kg - Son: 40.5 kg

So, the correct answer is В. 94.5 кг; 67.5 кг; 40.5 кг.