Answer:
k=5
Explanation:
What I did is multiply numbers 1 through 10 (or how many needed) with 3 until I would get an amount that when adding it with 10 would be over 22.
So, that's what I did, and I will show it.
3x1=3
3+10=13
It's under 22, so it wouldn't be correct.
3×2=6
6+10=16
(under 22)
3×3=9
9+10=19
(under 22)
3×4=12
12+10=22
If the question were saying 10+3k=22 then this would be the answer, but since 10+3k is over the amount of 22, we have to do one more.
3×5=15
15+10=25
So, 5 would be the answer. 5 is the amount of k. (Use 3×5=5 15×10=25 to show your work or use everything I wrote and say 5=k)
Hope this makes sense!