Question

Надо 3 уровнения с десятичными дробями. Плиииз. Сроооооочно!!!!!!!!!!!!

Answer 1

уравнение 1.(х - 0,55) : 6,25 = 0,6
Уравнение 2(х - 1,65) : 10,25 = 13,4
уравнение 3(х + 0,4) : 2,4 = 3,25
уравнение 4(х + 0,7) : 2,6 = 4,5

Answer 2

1) 2.34 умножить на 10 = 23.4
2) 7.9 разделить на 2 = 3.95
3) 8.36 разделить на 8 = 1.045

Answer 3

Solving Equations with Decimal Fractions

To solve equations with decimal fractions, we can use the same principles as solving equations with whole numbers. Here are three examples of equations with decimal fractions:

Equation 1: 2x + 5y = 1 Equation 2: 2x + y = 3 Equation 3: 3x + y = 4

To solve these equations, we can use various methods such as substitution, elimination, or graphing. Let's solve them using the substitution method:

1. Solve Equation 2 for x: 2x + y = 3 2x = 3 - y x = (3 - y) / 2

2. Substitute the value of x in Equation 1: 2((3 - y) / 2) + 5y = 1 3 - y + 5y = 1 4y = -2 y = -2 / 4 y = -0.5

3. Substitute the value of y in Equation 2: 2x + (-0.5) = 3 2x = 3 + 0.5 2x = 3.5 x = 3.5 / 2 x = 1.75

Therefore, the solution to the system of equations is x = 1.75 and y = -0.5.

Please note that the provided equations are just an example, and the method used to solve them may vary depending on the specific equations given.