Janet uses 3 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many pillows will she be able to decorate with one roll of ribbon? Will there be anything ribbon left over?

1/2

225 divided by 3 is 75 exactly. Therefore she can decorate 75 pillows with no ribbon left over.

To find out how many pillows Janet will be able to decorate with one roll of ribbon, we need to divide the total length of ribbon in the roll by the amount of ribbon used per pillow.

Given:
Length of ribbon roll = 225 feet
Ribbon used per pillow = 3 feet

To find the number of pillows Janet can decorate, we'll divide the total length of the ribbon roll by the length of ribbon used per pillow:

Number of pillows = Length of ribbon roll / Ribbon used per pillow

Number of pillows = 225 feet / 3 feet

The units "feet" cancel out, and we're left with:

Number of pillows = 75

Therefore, Janet will be able to decorate 75 pillows with one roll of ribbon.

Now, let's see if there will be any ribbon left over.

To determine this, we can check how much ribbon will be used for the 75 pillows:

Ribbon used for 75 pillows = Ribbon used per pillow * Number of pillows

Ribbon used for 75 pillows = 3 feet * 75

Ribbon used for 75 pillows = 225 feet

Since the length of ribbon used for the 75 pillows matches the length of the ribbon roll, there won't be any ribbon left over.