Lizzy: Alani earned $45 for 3 hours of baby-sitting. At the same rate, for how many hours would she need to baby-sit to earn $75?.
Me: Hmmm, let me think. I think this is the detailed solution:
User
The rate is $45 / 3 = $15 / hr. She would need to baby - sit for $75 / $15 = 5 hours. Final answer: 5.
Assistant