You can use a common denominator and rewrite 3/5 divided by 1/10 as 6/10 divided by 1/10.
Than you can think, “How many ___s are in ___? (Sorry, i don’t know this part)
3/5 divided 1/10 is 6
1/3
Y2-y1/x2-x1
9-3/25-7 substitute
6/18. Subtract
1/3. Simplify
5b-2=13 add 2 to both sides
5b=15 divide both sides by 5
b=3
The tortoise moves for 2min. & 30seconds.