Question

Помогиде пж 5-х/2=7-2х/5 найдите число 80от 24% найдите числокоторое 12% 190 3 в 8-ойстепени умноженое на 3 умноженое 3 минус в 5 степени делёное 27умноженое на 3 в минус 4 степении a в степени 2b умноденое на а минус в 3степети b в 3степени делёное на а в 4 степени b в 5 степени ЗАРАНЕЕ СПАСИБОО

Answer 1

∧ - знак степени:
3∧(-5) : 3∧(-8) * 9∧(-2) = 3∧(-5) : 3∧(-8) * (3²)∧(-2) = 3∧(-5) : 3∧(-8) * 3∧(-4) = 3∧(-5 - (-8) + (-4) ) = 3 ∧(-5 + 8 - 4) = 

Answer 2

Solving the Equation 5x/2 = 7 - 2x/5

To solve the equation 5x/2 = 7 - 2x/5, we can follow these steps:

Step 1: Multiply both sides of the equation by 10 to eliminate the denominators: 10 * (5x/2) = 10 * (7 - 2x/5)

Simplifying, we get: 25x = 70 - 4x

Step 2: Add 4x to both sides of the equation to isolate the variable x: 25x + 4x = 70

Simplifying, we get: 29x = 70

Step 3: Divide both sides of the equation by 29 to solve for x: x = 70/29

Therefore, the solution to the equation 5x/2 = 7 - 2x/5 is x = 70/29.