The length of a rectangle is 8 cm longer than twice the width. If the perimeter is 34 cm, find the dimensions of the rectangle.
1 answer:
Answer:
<h2>length = 14 cm</h2><h2>width = 3 cm</h2>
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
where
l is the length
w is the width
From the question
Perimeter = 34 cm
The statement
The length of a rectangle is 8 cm longer than twice the width is written as
l = 8 + 2w
Substitute this expression into the above formula and solve for the width
That's
34 = 2( 8 + 2w) + 2w
34 = 16 + 4w + 2w
6w = 18
Divide both sides by 6
w = 3
Substitute this value into l = 8 + 2w
That's
l = 8 + 2(3)
= 8 + 6
l = 14
The dimensions are
length = 14 cm
width = 3 cm
Hope this helps you
You might be interested in
Answer:
2nd graph
Step-by-step explanation:
on edge
4 1/2(2)=9. Multiply by 2 to get total
9- 3 1/2=z. Subtract 3 1/2 from total to get Z
5 1/2= Z
Answer:
The equation is true/ or an identity
Step-by-step explanation:
Plug in 7 for x, you get
2(7)+3=17
14+3=17
17=17
Answer:
More. Older
Likey
To vote
Less likely. younger
to
vote
X=5
Work:
y=2x-10
4x=2x-10
2x=10, then divide 2x on each side
x=5