SOLUTION: the length of a rectangle is 8 cm. the perimeter is 18 cm. what is the area of the rectangle?
Algebra.Com
Question 829319: the length of a rectangle is 8 cm. the perimeter is 18 cm. what is the area of the rectangle?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
---
x = 8
2x + 2y = 18
---
copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = 8 cm
y = 1 cm
area = 8*1 = 8 sq.cm
---
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
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
RELATED QUESTIONS
The length of a rectangle is 8 cm mor than 3 times its width. the perimeter of the... (answered by checkley71)
The length of a rectangle is fixed at 18 cm. What widths will make the perimeter greater... (answered by checkley77)
the length is 14 cm, width is 8 cm. what is the expression for the perimeter of a... (answered by solver91311,drj)
a square of 400 cm squared has the same perimeter as a rectangle whose length is 8 cm... (answered by radh)
The length of a rectangle plus its width is 18 cm. The area is 80 square cm. what are the (answered by checkley77)
: the length of a rectangle is 8 cm more than 3 times its width. the perimeter of the... (answered by oberobic)
the length of a rectangle is 8 cm more than its width if its perimeter is 88 cm what are... (answered by MathLover1)
The length of a rectangle is 4 cm longer than the width. If the perimeter is 20 cm, what... (answered by checkley77)
what is the perimeter of a rectangle that has a length of 15 cm and a width of 8... (answered by Maths68)