P = 2L + 2W
A = LW
Perimeter is given so we will use
The perimeter of a rectangle = 2*length + 2*width
Let suppose the width = x
Length = twice the width = 2x
the Perimeter = 72 = 2*2x + 2*x
72 = 4x + 2x
Now we have 72 = 6x, then dividing both sides by 6we get x = 12
So,
Width = 12 cm
Length is 12 x 2 = 24 cm
If the temperature drops 1/10 in every 2 minutes from 70f means it would drop 70/10 means 7f per 2 minutes and 7x3 f means 21f per 6 minutes
So the answer would be 70 - 21 = 49f
Answer:
Given
The area of a rectangle is less than 81 square centimeters
length 9cm
width =x cm
Step-by-step explanation:
Area of rectangle=length ×width
= 9×X
Area of rectangle is less than 81 cm^2
So 9x-81=0
X=81/9
X=9
So the value of xis 9
Answer:
9%
Step-by-step explanation:
Given that
The invested amount is $1,000
The future value is $2,400
The time period is 12 years
We need to find out the annual rate that compounded continously
So,
As we know that
Amount = Present value × e^(rate × time)
$2,500 = $1,000 × e^(rate × 12)
2.5 = e^(rate × 12)
ln 2.5 = 10r
ln 2.5 ÷ 10 = r
r = 9%