The recommended amount of water Cam has left to drink before bed is 6.4 ounces.
How many ounces of water does she need to drink to reach her goal?
The recommended amount of water per day = 64 ounces
Cam has 10% of the recommended amount of water left to drink before bed
Ounces of water Cam still needs to drink before bed = 10% × recommended amount
= 10% × 64
= 0.1 × 64
= 6.4 ounces
Therefore, Cam needs to drink 6.4 ounces of water more to reach her goal.
Complete question:
Cam, Yusef, and Spencer have resolved to drink more water each day. The recommended amount of water per day is 64 ounces.
Cam has 10% of the recommended amount of water left to drink before bed. How many ounces of water does she need to drink to reach her goal? Show your work and/or explain your reasoning.