SOLUTION: A rectangular picture frame is twice as long as it is wide,if the perimeter is 30cm what is its length?
Algebra.Com
Question 705751: A rectangular picture frame is twice as long as it is wide,if the perimeter is 30cm what is its length?
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
L=2W
P=2L+2W
30=2*2W+2W
30=4W+2W
30=6W
W=30/6
W=5 cm. ANS.
L=2*5=10 cm. ANS.
PROOF:
30=2*10+2*5
30=20+10
30=30
RELATED QUESTIONS
A RECTANGULAR PICTURE FRAME IS TWICE AS LONG AS IT IS WIDE. IF THE AREA OF THE FRAME IS... (answered by hkwu)
A picture frame is two-and-one-half times as long as it is wide. If its area is 250... (answered by josgarithmetic,MathTherapy)
A rectangular picture frame is 4 times as wide as its length with a perimeter of 80... (answered by orca)
a rectangular field is twice as long as it is wide. If the perimeter of th field is 72... (answered by checkley77)
A rectangle is twice as long as it is wide. What is the perimeter if its area is 32 cm2?
(answered by algebrahouse.com,josgarithmetic)
A rectangular room is twice as long as it is wide, and its perimeter is 54 meters. Find... (answered by JulietG)
A rectangular room is twice as long as it is wide, and its perimeter is 24 meters. Find... (answered by TimothyLamb)
A rectangular room is twice as long as it is wide, and its perimeter is 54 meters. Find... (answered by ewatrrr)
A painting is twice as high as it is wide. A 3" frame has a total area of 576 square... (answered by ankor@dixie-net.com)