Question

3 11/14×-1 20/21× =1 1/4

Answer 1

Ответ:

X= 0.16= 1/6

Пошаговое объяснение:

............

Answer 2

To solve the equation 3 11/14 × -1 20/21 × = 1 1/4, let's break it down step by step.

First, we need to convert the mixed numbers into improper fractions:

3 11/14 = (3 × 14 + 11)/14 = 53/14

-1 20/21 = (-1 × 21 + 20)/21 = -1/21

Next, we multiply the two fractions together:

(53/14) × (-1/21) = (53 × -1)/(14 × 21) = -53/294

Now, we have -53/294 on the left side of the equation. We need to simplify the right side, 1 1/4.

1 1/4 = (1 × 4 + 1)/4 = 5/4

So, the equation becomes:

-53/294 = 5/4

To solve for the unknown variable, we can cross-multiply:

-53 × 4 = 5 × 294

-212 = 1470

However, this results in a contradiction, as -212 is not equal to 1470. Therefore, the original equation has no solution.