Question

(3/5+x):3=7/8:2 5/8(1/5:3/4)+y=13/20-1/4​

Answer 1

Ответ:

Пошаговое объяснение:

Не делется

Answer 2

To solve the equations, let's break it down step by step:

Equation 1: (3/5 + x)/3 = 7/8 ÷ 2 5/8

First, let's simplify the right side:

7/8 ÷ 2 5/8 = 7/8 ÷ (21/8) = (7/8) * (8/21) = 7/21 = 1/3

Now we have:

(3/5 + x)/3 = 1/3

To isolate x, multiply both sides by 3:

3 * [(3/5 + x)/3] = 3 * (1/3)

(3/5 + x) = 1

Now, subtract 3/5 from both sides:

x = 1 - 3/5 x = 5/5 - 3/5 x = 2/5

Equation 2: 5/8 * (1/5 ÷ 3/4) + y = 13/20 - 1/4

Let's simplify the left side first:

1/5 ÷ 3/4 = 1/5 * 4/3 = 4/15

Now:

5/8 * (4/15) + y = 13/20 - 1/4

To add 13/20 and -1/4, we need to find a common denominator, which is 20:

13/20 - 1/4 = 13/20 - 5/20 = (13 - 5)/20 = 8/20 = 2/5

Now we have:

(5/8) * (4/15) + y = 2/5

To simplify further, multiply 5/8 and 4/15:

(5/8) * (4/15) = (5 * 4) / (8 * 15) = 20/120 = 1/6

So, we have:

(1/6) + y = 2/5

Now, isolate y by subtracting 1/6 from both sides:

y = 2/5 - 1/6

To add these fractions, find a common denominator, which is 30:

(12/30) + (5/30) = 17/30

So, the solution to Equation 2 is:

y = 17/30

To summarize:

The solution to the system of equations is:

x = 2/5 y = 17/30