SOLUTION: the width of a rectangle is 15 less than 3 times its length. if the perimeter is 26, what are the length and width of the rectangle

Algebra ->  Rectangles -> SOLUTION: the width of a rectangle is 15 less than 3 times its length. if the perimeter is 26, what are the length and width of the rectangle      Log On


   

Question 931726: the width of a rectangle is 15 less than 3 times its length. if the perimeter is 26, what are the length and width of the rectangle
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
w = 3L - 15
2L + 2w = 26
---
2L + 2w = 26
2L + 2(3L - 15) = 26
2L + 6L - 30 = 26
8L = 56
L = 56/8
L = 7
w = 3L - 15
w = 3*7 - 15
w = 6
---
L = 7
w = 6
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php