3/4 ÷ 1/3 =9/4 hours
= 3/4 x 3 = 9/4 hours
Step-by-step explanation
Let x be the number of hours it would take the penguin to walk 3/4 mile.
1/3 mile = 1 hour
3/4 mile = x
Cross-multiply
1/3 x = 3/4
Divide both-side by 1/3
x = 3/4 ÷ 1/3
= 3/4 x 3 = 9/4 hours