Given that the area is equal to twice the perimeter and the dimensions are:
length=4x ft, width=(x+6) ft
the perimeter will be:
P=2(L+W)
P=2(4x+(x+6))
P=2(4x+x+6)
P=2(5x+6)
P=(10x+12)
Area of the rectangle is:
A=4x(x+6)
A=4x²+24x
but:
2P=A
thus
2(10x+12)=4x²+24x
20x+24=4x²+24x
thus
4x²+4x-24=0
x²+x-6=0
x²-2x+3x-6=0
x(x-2)+3(x-2)=0
(x-2)(x+3)=0
thus the answer is:
x=-3 or x=2
thus
length=4x=4*2=8 ft
width=(x+6)=(2+6)=8 ft
answer: 2.1%
p/w=%/100
?/35=6/100
35×6=210
210÷100
2.1
Hope this helps! Plz mark as brainliest! :)
Answer:
it is 2mm long
Step-by-step explanation:
16x0.125=2 so it is 2mm long
Answer:
8 1/3 %
Step-by-step explanation:
Since he bought for 240 and sold for 220, decrease is 20 Rupees.
20/240 = 1/12
100/12 = 8.33333 (Repeated)
0.33333 (repeated) = 1/3
8 1/3 %
Hope this helps!
