Question

1) A1=203, A2=205, Ar=204.88, w1,w2-?​

Answer 1

Дано:

Ar(A1) = 203

Ar(A2) = 205

Ar(A) = 204,88

Найти:

ω(A1) - ?

ω(A2) - ?

Решение:

1) Пусть ω(A1) = (х), тогда ω(A2) = (1 - х);

2) Ar(A) = Ar(A1) * ω(A1) + Ar(A2) * ω(A2);

204,88 = 203 * х + 205 * (1 - х);

х = 0,06;

3) ω(A1) = х = 0,06 = 6%;

4) ω(A2) = 1 - х = 1 - 0,06 = 0,94 = 94%.

Ответ: Массовая доля A1 составляет 6%; A2 - 94%.

Answer 2

It seems like you have provided values for A1, A2, and Ar, and you are looking to find the values of w1 and w2.

The weighted average (Ar) of two values (A1 and A2) with respective weights (w1 and w2) can be calculated using the formula:

Ar = (A1 * w1 + A2 * w2) / (w1 + w2)

You have Ar = 204.88, A1 = 203, and A2 = 205. You need to solve for w1 and w2.

Let's set up the equation:

204.88 = (203 * w1 + 205 * w2) / (w1 + w2)

Now, we need to solve this equation for w1 and w2. Unfortunately, this equation alone cannot be solved without additional information or constraints. To find the values of w1 and w2, you would need either another equation or some information about the relationship between w1 and w2.

If you have additional information or constraints, please provide them, and I can help you solve for w1 and w2 accordingly.