frankyecorona frankyecorona

22-02-2017
Mathematics

contestada

The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square units?

Enter your answer as a number, like this: 42

Do not enter any units.

Respuesta :

wolf1728 wolf1728

27-02-2017

A) L = (2*W) -4
B) L*W = 160
B) L = 160/W
Substituting that into A)
160/W = (2*W) -4
160 = 2W^2 -4W
2W^2 -4W-160 = 0
Width = 10
Length = 16

Answer Link

Otras preguntas

Liverworts transport water and nutrients within their bodies by a. specialized vascular tissue. b. absorption alone. c. absorption and transpiration. d. osm

According to tony blair, _________is 21st century wealth a. techology b. talent c. credit d. education

the red scare led to

The __________ is responsible for creating sperm cells.

If you skip the cool-down portion of exercise,

If three times Linda's age is decreased by 36,the result is twice Linda's age.How old is linda

7) Drawing 2 cards that are all 8 from a deck of cards? __________

Which group immigrated to the Southwest? a. Europeans c. Asians b. Hispanics d. African American

What do the tennessee valley authority and the federal deposit insurance corporation have in common?

an advantage held by the Patriots during the Revolutionary War