A glass of water can hold 1/6 of a bottle. How many glasses of water can be filled with 3 1/2 bottles of water

Let w = the glasses of water we need to find.

Change 3_1/2 to 7/2.

1/w = (1/6)/(7/2)

(1/6)w = (7/2)

Divide both sides by 1/6.

w = (7/2) ÷ (1/6)

w = (7/2) • (6/1)

w = (21/1)

w = 21

452,489 to the nearest thousand is 452,000