Question

David used 40 feet of braid to trim the edges of a quilt that is 12 feet long.How wide is the quilt?Use the formula p=2l+2w.

A)3 1/3 feet
B)8 feet
C)14 feet
D) 28 ft
Show your work of how u got the answer.

Answer 1

P = 2W +2L step is keep 2L in one side of equation , and move every thing else to the other side.


In moving any quantity from one side to other, change the sign. ( equivalent of adding or subtracting equal quantity from both sides of equation).

2L = P - 2W divide both sides by 2:
L = p/2 - w Step is the same as solving X in equation of 8 = 2X + 16 2X = 8 -16 = 8 X =4 . But, here you solve one variable in terms of other variables.