saraxoxo134 saraxoxo134
  • 23-05-2017
  • Mathematics
contestada

The width of a rectangle is 7 inches less than its length. The areaof the rectangle is 120 Square inches. Solve for the dimensions of the rectangle

Respuesta :

Аноним Аноним
  • 24-05-2017
if length = x then width = x - 7

area = x(x -7) = 120
x^2 - 7x - 120 = 0
(x +8(x-15) = 0

x = -8 and 15 

length must be positive so  length = 15 ins

width = 15-7 = 8 ins

Answer Link

Otras preguntas

How are landslides and mudflows similar and different?
If you multiply any whole number by a fraction greater than one is your product greater than or less than the whole number
what are the names of Mexico's two major peninsulas
Why is photosynthesis important for life on earth?
how do i add this 9 7/8 +6 5/8 +3 3/8
Which one of the following statements expresses a true proportion? A) 2:1=1:2 B) 54:9=6:3 C) 3:4=9:12 D) 7:9=8:9
which types of lithosphere collide in the convergent boundary?
is 3/6 greater than 6/12?
the philosopher most often associated with defending absolutism in government was A. Descartes B. Hobbes C. Locke D. Calvin
The democratic style of parenting __________. A.brings about lower academic performance than other parenting styles B.brings about higher levels of high-risk