3)
If 1/3
of a bucket of
sand covers 1/9 of a
playground, then how
much sand is needed for
the entire playground?

For covering   unit area of the entire playground, the amount of sand required is equal to volume of buckets of sand.

Step-by-step explanation:

Given -

volume of sand in bucket is able to cover area of the entire playground

Thus,

For covering   unit area of the entire playground, the amount of sand required is equal to    of the total volume of sand in bucket

For covering   unit area of the entire playground, the amount of sand required is equal to

For covering   unit area of the entire playground, the amount of sand required is equal to volume of buckets of sand.

7

step-by-step explanation: