Luis is getting balloons for his father's birthday party. he wants each balloon string to be 12 feet long. at the party store, string is sold by the yard. if luis wants to get 56 balloons, how many yards of string will he need?

Step-by-step explanation:

According to the problem, we know that each ballon string is 12 feet long. But, Luis need to know this amount in yards, to then calculate how much he needs for the 56 balloons.

So, 1 yard equals 3 feet. Using this relation we can do the math:

According to the proportion, 12 feet equals 4 yards. So, each ballon string is 4 yards long. But, Luis needs 56 of them, we just have to multiply to know the total:

Therefore, Luis needs 224 yards of string for the 56 balloons.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour