Question

15a +11в а=2,5 в=3,4

Answer 1

15×2,5+11×3,4=37,5+37,4=74,9

Answer 2

To solve the equation 15a + 11в = 2,5 в = 3,4, we need to substitute the given values for в and в and then solve for 'a.'

Given: в = 3 в = 4

Let's proceed with the solution:

Step 1: Substitute the given values into the equation: 15a + 11(3) = 2,5(4)

Step 2: Simplify the equation: 15a + 33 = 10

Step 3: Isolate 'a' on one side of the equation: 15a = 10 - 33 15a = -23

Step 4: Solve for 'a': a = -23 / 15 a ≈ -1.5333

So, the value of 'a' is approximately -1.5333.