ineedhelp109 ineedhelp109
  • 11-05-2017
  • Mathematics
contestada

the length of a rectangle is 3 feet less than twice the width. the area is 65 square feet. find the length and width

Respuesta :

STEMkayleigh
STEMkayleigh STEMkayleigh
  • 17-05-2017
It's a lot to take in, isn't it ? I started off by confirming the formula a=lb

a=lb
65= (x×2)-3×x

l=(x×2)-3
b=x
a=65

Now I tried plugging in random values. Eventually I came up with this ;

65= (6.5×2)-3×6.5
65= 13-3×6.5
65 = 10×6.5
65=65

Length = 10feet
Width = 6.5feet
Answer Link

Otras preguntas

Graph the parametric equations: 1: x = 7 sin t + sin 7t y = 7 cos t + cos 7t 2: x = 2t y = t + 5, -2 ≤ t ≤3 3: x = 2t - 1 y = t² + 5, -4 ≤ t ≤4 4: x
which statement ate most likely to be found in psa​
Sarah is researching the connection between the time students spend watching television and their performance in school. Her studies indicate that there is an i
Which of the following are general characteristics of all three groups of fish? Select all that apply. notochord present only in embryos swim bladder jaws c
what is the equation of the line? Write in standard form. (4,5).
Two radio waves are used in the operation of a cellular telephone. To receive a call, the phone detects the wave emitted at one frequency by the transmitter sta
Which of the three Reconstruction amendments do you think had the greatest impact? ​
find the slope of the line​
Of the scenarios below, which represents the occurrence of evolution at its smallest scale? An individual organism begins as a single cell and develops into an
Write c^2+d–d^2+c as a product