hayleegirl1996oyz7p0 hayleegirl1996oyz7p0

06-11-2017
Mathematics

contestada

A lot is 21 ft by 30 ft. To support a fence, an architect wants an upright post at each corner and an upright post every 3 ft in between. How many of these posts are needed?

Respuesta :

06-11-2017

What we know:
Lot= 21 x 30ft
Perimeter=2l+2w
Want to put 4 corner post and one post every 3 ft

What we need to find:
How many post we need.

Perimeter=2 (21)+2 (30)=42+60=102ft

102/3=34

34 posts are needed.

Answer Link

Otras preguntas

What City did the Uniom army lay siege to and after about six weeks finally capture? a. New Orleans b. Natchez c. Richmond d . Vicksburg

Two cylindrical containers are shown. Container A has radius r and height h and holds a maximum of 42 ounces of water. Container B has radius r and height 1.5h.

What was the code name for the invasion of Axis-controlled North Africa? Operation Overlord D-Day V-E Day Operation Torch

On arriving at the elegant Chez Moulin for a catered dinner, the guests discover that a large plate, called a _______, will remain at their place setting to rec

What do scientists estimate is the approximate age of the planet earth?

Choose the correct answer. This is ___________ marble and much smaller than the real one. A) touché B) al fresco C) faux D) à la carte

Children of drug addicts are frequently neglected. Please select the best answer from the choices provided. a. True b. False

Darwin s theory of natural selection applies only to birds. a. True b. False

Explain what type of stimulus each sense organ responds to and how.

What do playwrights write to help them tell their stories? A. dialogue B. narration C. advertisements D. editorials