Answer:
x=5.5
Step-by-step explanation:
Perimeter of ABCD=85
The perimeter is everything around the outside added together.
Form an equation:
3x+4+4x+6x-11+5x-7=85
Collect the like terms:
Like terms are terms that have the same powers and coefficient.
3x+4x+6x+5x=18x
4-11-7= -14
Put it back into an equation:
18x-14=85
Do inverse operations to find out what x is:
85+14=99
18x=99
99÷18=5.5 (we divide because, in algebra, when a number is next to a letter, it means times and as we want the inverse, you would have to divide)
x=5.5
Hope this helps :)
Answer:
Option 2 - 
is the slope of the equation.
Step-by-step explanation:
Given : Equation 
To find : What is the slope of the line represented by the equation ?
Solution :
The slope form of line is 
Equation
Take 2x to another side,
Divide 3 both side,
On comparing with general equation,
is the slope of the equation.
Therefore, option 2 is correct.
Answer: 6.125 or 6¹/₈ units of water
Step-by-step explanation:
There are 7 people in the family and each of them are mean to drink 7/8ths of water.
The amount of water all 7 should take is therefore:
= 7 * 7/8
= 49/8
= 6.125 or 6¹/₈ units of water
