Posted by Sammie on Wednesday, January 18, 2012 at 2:21pm.
joe is going to build a retangular lap pool. the perimeter of the pool will be 240 feet. the length of the pool will be 20 feet more than 3 times the width. find the length and width

algebra  bobpursley, Wednesday, January 18, 2012 at 2:47pm
L=3W+20
P= 2L + 2W= 2(3W+20)+2W
240= 8W+40
check that. Solve for W, then solve for L 
algebra  Anonymous, Friday, September 6, 2013 at 6:00pm
tom is going to build a fence around his garden which is rectangle measuring 8 cm by 20 m. he will first put in posts which will be 4 m apart. if the post cost $4 each what will be the total cost for all the posts