Question

Одна сторона треугольника равна 6 2/10 м,вторая на 1 7/10 меньше первой,а сумма этих сторон на 2 4/10 м больше третьей стороны. Чему равен периметр треугольника? Напишите по действиям!

Answer 1

1)6 2/10-1 7/10= 4 5/10
2)6 2/10+4 5/10=10 7/10
3)10 7/10-2 4/10= 8 3/10
4)8 3/10+ 6 2/10+4 5/10=19

Удачи!!!!!

Answer 2

1) 6ц2/10-1ц7/10=5ц12/10-1ц7/10=4ц5/10 (м) вторая сторона
2) 6ц2/10+4ц5/10=10ц7/10 (м) сумма двух сторон
3) 10ц7/10-2ц4/10=8ц3/10 (м) третья сторона
4) 10ц7/10+8ц3/10=18ц10/10=19 (м) периметр

Answer 3

Problem Analysis

We are given the lengths of two sides of a triangle and the sum of all three sides. We need to find the perimeter of the triangle.

Let's assign variables to the lengths of the sides: - Let the first side be a. - The second side is 1 7/10 less than the first side, which can be written as a - 1 7/10. - The sum of the first two sides is 2 4/10 more than the third side, which can be written as a + (a - 1 7/10) + 2 4/10.

We need to find the value of a + (a - 1 7/10) + 2 4/10.

Solution

To find the perimeter of the triangle, we need to add the lengths of all three sides.

Let's calculate the perimeter step by step:

1. Convert the mixed numbers to improper fractions: - 1 7/10 can be written as 17/10. - 2 4/10 can be written as 24/10.

2. Simplify the expression for the sum of the first two sides: - a + (a - 17/10) + 24/10 simplifies to 2a - 17/10 + 24/10.

3. Combine the fractions: - 2a - 17/10 + 24/10 can be written as 2a + 7/10.

4. Add the lengths of all three sides to find the perimeter: - The perimeter (P) is given by P = a + (a - 17/10) + 24/10.

Let's calculate the perimeter using the given values.

Calculation

Given: - The first side (a) is equal to 6 2/10 meters.

We can substitute this value into the perimeter formula:

P = a + (a - 17/10) + 24/10

Substituting a = 6 2/10:

P = (6 2/10) + ((6 2/10) - 17/10) + 24/10

Simplifying the expression:

P = 6 2/10 + 6 2/10 - 17/10 + 24/10

Converting mixed numbers to improper fractions:

P = 62/10 + 62/10 - 17/10 + 24/10

Combining the fractions:

P = (62 + 62 - 17 + 24)/10

Calculating the numerator:

P = 131/10

Converting the improper fraction to a mixed number:

P = 13 1/10

Answer

The perimeter of the triangle is 13 1/10 meters.

Please let me know if I can help you with anything else.