Question

1) 8х+11 целых 2/11=15 целых помогите 2)18-2 целых = 16 целых 3/4сколько будет?

Answer 1

Решение внизу на фото

Answer 2

8x+11 2/11=15
8x+123/11=15
8x=15-123/11
8x=42/11
x=21/44

18x-2=16 3/4
18x-2=67/4
18x=67/4+2
18x=75/4
x=25/24

Answer 3

1. To solve the equation 8x + 11 2/11 = 15, we need to isolate the variable x.

First, let's convert the mixed number 11 2/11 to an improper fraction.

11 2/11 = (11 * 11 + 2) / 11 = 123/11

Now, we can rewrite the equation:

8x + 123/11 = 15

To eliminate the fraction, we can multiply both sides of the equation by 11:

11 * (8x + 123/11) = 11 * 15

This simplifies to:

88x + 123 = 165

Next, we can isolate the variable x by subtracting 123 from both sides:

88x = 165 - 123

88x = 42

Finally, divide both sides by 88 to solve for x:

x = 42/88

The fraction 42/88 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 2:

x = 21/44

So the solution to the equation is x = 21/44.

2. To solve the equation 18 - 2 = 16x 3/4, we first need to convert the mixed number 16 3/4 to an improper fraction.

16 3/4 = (16 * 4 + 3) / 4 = 67/4

Now, we can rewrite the equation:

18 - 2 = (67/4) * x

Simplifying the left side:

16 = (67/4) * x

To isolate x, we need to divide both sides of the equation by 67/4:

16 / (67/4) = x

To divide by a fraction, we multiply by its reciprocal:

16 * (4/67) = x

The result is:

x = 64/67

Therefore, the solution to the equation is x = 64/67.