SOLUTION: 'a rectangle has a length of (5p-6)m and a width of (p+4)m. what is the width of the box , in m , if its perimeter is 20m' this is hot math question form 2 PLEASE HELP ME

Algebra ->  Statistics  -> Linear-regression -> SOLUTION: 'a rectangle has a length of (5p-6)m and a width of (p+4)m. what is the width of the box , in m , if its perimeter is 20m' this is hot math question form 2 PLEASE HELP ME       Log On


   

Question 1037750: 'a rectangle has a length of (5p-6)m and a width of (p+4)m. what is the width of the box , in m , if its perimeter is 20m' this is hot math question form 2
PLEASE HELP ME

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Length       (5p-6)m
Width        (p+4)m
Perimeter    20m


Using formula for perimeter of a rectangle, 2%285p-6%29m%2B2%28p%2B4%29m=20m
and then simplify this one equation.
5pm-6m%2Bp%2B4=10m
5pm-6m%2B4-10m=0
5pm-16m%2B4=0------------No way to find the dimensions. This is a nonlinear equation in two variables, m and p.



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WRITE YOUR DESCRIPTION CORRECTLY SO IT IS UNAMBIGUOUS.
The results you want are length is %283%261%2F6%29%2AMETERS and width is %285%265%2F6%29METERS.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

'a rectangle has a length of (5p-6)m and a width of (p+4)m. what is the width of the box , in m , if its perimeter is 20m' this is hot math question form 2
PLEASE HELP ME 
Length: 5p - 6

Width: p + 4

2(L + W) = P

2(5p - 6 + p + 4) = 20

2(6p - 2) = 2(10)

6p - 2 = 10

6p = 12

p = matrix%281%2C4%2C+12%2F6%2C+or%2C+2%2C+m%29



Width: 2 + 4, or highlight_green%28matrix%281%2C2%2C+6%2C+m%29%29