Answer:
12liters
Explanation:
1.5 liters / 0.5 hours = X liters / 4 hoursNow, we can cross-multiply and solve for X:1.5 * 4 = 0.5 * X6 = 0.5XTo isolate X, divide both sides by 0.5:X = 6 / 0.5 = 12So, Ryan drinks 12 liters of water in 4 hours at a constant rate.