You and your friend are both knitting scarves for charity. You knit 8 rows each minute and already have knitted 10 rows.Your friend knits 5 rows each minute and has already knitted 19 rows. When will you both have knitted the same number of rows?

Answer 1

rows= starting rows+ rate*time

so to make them equal
You rows=friend rows
10+8t=19+5t

solve for t.

Answer 2

T=3