Answer 1: for 3 dollars you can buy 4 water bottles because $9 divided by $3 is 3 so we can assume 12 divided by 3 which is 4.
It is 0.75 a bottle. We know that because 0.75 times 12 equals nine, so that checks our work.
7 bottles of water would cost 5.25 dollars because 0.75x7 is 5.25
Answer 2: 40 pounds would cost $32 because 10x4=40 so we can do $8x4= $32
It is 0.8 per pound. We know this because you divide 10 by 8 and it’s 0.8
Answer 3: It’s $1.50 per bag. We know that because $4 divided by 6 is $1.50.
At that rate, 7 bags would be $10.50. Because 1.50 times 7 equals 10.50.
Answer 4: it is 3 dollars per book. Because 15 divided by 5 is 3. At that rate we can buy 7 books because 7 times 3 is twenty one.
Answer 5: it is 0.25 per bracelet. We know this because 1 divided by 4 is 0.25. At that rate 11 bracelets will cost 2.75 dollars. We know this because 0.25 times 11 equals 2.75!
