SOLUTION: what is the outer perimeter of a sidewalk if the sidewalk is 12 ft wide by 20 ft long ?

Algebra.Com
Question 577927: what is the outer perimeter of a sidewalk if the sidewalk is 12 ft wide by 20 ft long ?
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
P = 2L + 2W

P = 2(20) + 2(12)

P = 40 + 24

P = 64


So the outer perimeter is 64 ft.

RELATED QUESTIONS

A rectangular swimming pool measures 25 ft by 50 ft and has a 6 ft wide sidewalk around... (answered by josgarithmetic)
A circular flower garden has a diameter of 18 ft. Around the garden there is a circular... (answered by nerdybill)
A circular flower garden has a diameter of 18 ft. Around the garden there is a circular... (answered by Alan3354)
A rectangular garden is twice as long as it is wide and is surrounded by a sidewalk that... (answered by mananth)
A 3-ft.-wide sidewalk surrounds the outside of a rectangular plot that measures 20 ft. by (answered by checkley77)
a rectangular public garden x-ft. by y-ft. has a sidewalk surrounding the lawn. the... (answered by ankor@dixie-net.com)
A 60-ft. by 80-ft. parking lot is torn up to install a sidewalk of uniform width around... (answered by josgarithmetic,MathTherapy)
A rectangular garden is twice as long as it is wide and is surrounded by a sidewalk, that (answered by KMST)
the swimming pool is 12 feet by 20 feet there is a 3 foot wide cement sidewalk all around (answered by ankor@dixie-net.com)