Answer:
Step-by-step explanation:
Area of a rectangle = Length x Breadth.
Area= L x B
We are told the length is twice the breadth.
You can write this as :
Length = 2 x Breadth
L = 2B
If you put that into the area formula at the beginning, we get:
Area = L x B
Area = 2B x B = 
They also told us that the area of the field is 3200 square meters. So,
Area = = 3200
Divide both sides by 2
= 
Now to solve for B we need to square root both sides.
= 40
So now we know the Breadth is 40meters
Remember earlier we said Length = 2 x Breadth
Cost of fencing the field = 2L + 2B
Cost of fencing the field = 2 x 80 + 2 x 40 = $240
Answer:
x<5
Step-by-step explanation:
Let's solve your inequality step-by-step.
−16x>−80
Step 1: Divide both sides by -16.
−16x
−16
>
−80
−16
x<5
Answer:
x<5
Answer:
h = 16x
Step-by-step explanation:
The volume of a sphere and a cone is same such that,
We have, r = x, R = (1/2)x, h= ? (height of the cone)
So,
So, the height of the cone is equal to 16x.
Answer:
The absolute value of a number is always positive.
if x > 0 , then 
= x
if x < 0 , then |-x| = x
Use the absolute value.
To find an expression for: An elevation of 250 feet.
Elevation mean the height of a place above the sea level.
An elevation of 250 feet = +250
then, using absolute value:
Size of each amount, 
