Mary's 3 hamsters each eat three-eighths of cup of grain a day, if she has 6 and 3/4 cups of grain, how many days will the grain last?

6 days

Step-by-step explanation:

Each hamster eat of a cup of grain a day.

So in one day, the three hamsters eat:

cups

And since we know that Mary has 6 cups of grain.

We need to convert this quantity into a fraction:

she has cups of grain.

To find how many days the grain will last, we need to divide the total amount of grain she has ( cups) by the amount that the three hamsters eat together in one day ( cups):

÷

and we use the rule to divide fractions:

÷

this way we get:

÷

the grain will last 6 days

for b its (t) and c its (d)

step-by-step explanation: