Mathematics: Maria has 56.20 feet of ribbon to use for a border around a rectangular bulletin board in her classroom. The board is 4.47 feet tall and 7.25 feet wide. How many feet of ribbon will Maria have left after she puts the border around the bulletin board?

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Maria has 56.20 feet of ribbon to use for a border

redbeast677

25.01.2022

32.76 ft

Step-by-step explanation:

step 1

Find the perimeter of the rectangular bulletin board

The perimeter of rectangle is given by

P=2(W+H)

where

W is the width

H is the height

we have

$W=7.25\ ft\\H=4.47\ ft$

substitute

$P=2(7.25+4.47)=23.44\ ft$

step 2

Subtract the perimeter from the total feet of ribbon

$56.20-23.44=32.76\ ft$

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