Question

katrina drinks 0.5 gallons of water per day. which expression shows how to find the number of cups of water she drinks in a week?

Answer 1

there 16 cups in a gallon, so it would be 16×.05 times the number of days in a week which is 7 so it would be 16×.05×7

Answer 2

Katrina drinks 56 cups of water in a week.

Explanation:

Katrina drinks 0.5 gallons of water per day.

Therefore, number of gallons of water per week = 0.5 × 7 = 3.5 gallons

If
`(3)/(4)` gallon = 12 cups

1 gallon =
`(12)/((3)/(4) )`

=
`12* (4)/(3)`

= 16 cups

Then 3.5 gallons = 3.5 × 16 cups of water

= 56 cups

Katrina drinks 56 cups of water in a week.