Question

Math problem help? thank you!
Joyce combines 9 atoms of hydrogen and 3 atoms of nitrogen to make 3 molecules of ammonia.

How many nitrogen atoms does Joyce need to form ammonia molecules using 51 hydrogen atoms?

Answer 1

do I divide 51 by 3?

Answer 2

yes

Answer 3

this is simple proportion

Answer 4

so the number of hydrogen atoms joyce needs is 17?

Answer 5

right

Answer 6

I have one more question

Answer 7

I have to write a direct variation equation that relates atoms of hydrogen, H, to atoms of nitrogen, N

Answer 8

What I got was a=(1/9)*h*n

Answer 9

@tkhunny is the equation correct?

Answer 10

??