Pls help 9 + 10y = 21. What is the value of Y?

1.2

Step-by-step explanation:

9+10y=21

Subtract 9 from both sides:

10y=21-9=12

Divide both sides by 10 to isolate y:

y=1.2

Hope this helps!

y = 6/5 = 1 1/5 = 1.2

Step-by-step explanation:

9 + 10y = 21

Subtract 9 from each side

9-9 + 10y = 21-9

10 y = 12

Divide each side by 10

10y/10 = 12/10

y = 6/5

y = 1.2

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5

answer: for each 3 girls there is 2 boys . 3: 2

hope this ! (:   mark me as brainliest if you can