Question

7.12.в) 3х + 5у – 10 = 0, если х = 0,5;​

Answer 1

$3x+5y-10=0\\3*0,5+5y-10=0\\1,5+5y-10=0\\-8,5+5y=0\\5y=8,5 ~~~~~~~~ | : 5\\y=1,7$

Answer 2

Ответ:

-2,3

Объяснение:

3х + 5у – 10 = 0

3*0,5+5у-10=0

1,5+5у+10=0

5у+11,5=0

5у=-11,5

у=-2,3

Answer 3

To find the value of y in the equation 3x + 5y - 10 = 0, when x = 0.5, we can substitute the given value of x into the equation and solve for y.

Let's substitute x = 0.5 into the equation:

3(0.5) + 5y - 10 = 0

1.5 + 5y - 10 = 0

Now, let's simplify the equation:

5y - 8.5 = 0

To isolate y, we need to move the constant term to the other side:

5y = 8.5

Now, divide both sides of the equation by 5 to solve for y:

y = 8.5/5

y = 1.7

Therefore, when x = 0.5, the value of y is 1.7 in the equation 3x + 5y - 10 = 0.