Lizzy: Toms car gets 50 miles to the gallon. He drives 75 miles per day. If gas is $3 per gallon how much does he spend on gas in 10 days?.
Me: Hmmm, let me think. I think this is the detailed solution:
He drives 75 * 10 = 750 miles. So he uses 750 / 50 = 15 gallons. That means he spends 15 * 3 = $45 on gas. Final answer: 45.