the length of a rectangle of backyard is 7 more than the width of the backyard. the perimeter of the backyard is 42.what is the area of the backyard
Carol H.
answered • 02/21/18
Masters' Degree in Mathematics with 35 Years of Teaching Experience
Let w = the width
Let w + 7 = the length
P = 2l + 2w
42 = 2(w + 7) + 2w
42 = 2w + 14 + 2w
28 = 4w
7 = w
length = 14
A = lw
A = 14(7)
A = 98 units2
Still looking for help? Get the right answer, fast.
OR
Find an Online Tutor Now
Choose an expert and meet online.
No packages or subscriptions, pay only for the time you need.
