SOLUTION: The length of a rectangle is represented by x+1. Its width is represented by x-3. If the area of the retangle is 117 squre centimeters, what are the dimensions of the rectangle?
Algebra.Com
Question 80186This question is from textbook Algebra 1
: The length of a rectangle is represented by x+1. Its width is represented by x-3. If the area of the retangle is 117 squre centimeters, what are the dimensions of the rectangle?
Note: I calculated -10cm and 12cm, however, the book provided anwers of 9cm and 13cm.
This question is from textbook Algebra 1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The length of a rectangle is represented by x+1. Its width is represented by x-3. If the area of the retangle is 117 squre centimeters, what are the dimensions of the rectangle?
----------------
(x+1)(x-3)=117
x^2-2x-3=117
x^2-2x-120=0
(x-12)(x+10)=0
Positive answer: x=12 so x+1=13 and x-3=9
-------------------
Cheers,
Stan H.
RELATED QUESTIONS
If the area of a rectangle is represented by x^2+8x+15 and its length is represented by... (answered by Alan3354)
If the length of a rectangle is represented by x+6 and the width is represented by x.... (answered by rwm)
the length of a rectangle is represented by x+7 and the width is represented by x+1. If... (answered by mananth)
Find an expression for the width of a rectangle whose length is represented by x-2 and... (answered by ewatrrr)
The length of a rectangle is represented by (x+6) and its width by (x-9). what is the... (answered by Earlsdon)
if the area of a rectangle is represented by x^2 + 8x + 15 and its length is represented... (answered by ewatrrr)
the rectangle is represented by x2-5x-24. if the width of the rectangle is represented by (answered by fcabanski,solver91311)
The length of a rectangle is represented by x+1. It's width by x-3. The area is 117cm^2.... (answered by solver91311)
A rectangle’s width is represented by x and its length by y. Which expression best... (answered by ewatrrr)