If each dozen cookies needs 3/4 of a bag of flour to make, how many bags of flour does grandma needs to buy if she is making 10dozen cookies?

7.5 flour bag

Step-by-step explanation:

we are given

flour bags need to make 1 dozen cookies=3/4

we have to find

number of flour bags for 10 dozen cookies needed = ?

1 dozen cookies needed flour=3/4

and for 10 dozen cookies

we will multiply 10 on both sides

it will give

10 dozen cookies needed flour bags = (3/4) * 10=30/4=15/2=7.5