Answer:
2700 - 2000 = 700 - 100 = 600 - 200 = 400 - 100 = 300
300 dollars
Hey!
To simplify the equation provided we must first start off by grouping like terms.
<em>Original Equation :</em>
10 + 3c + 5d - 7c + d
<em>New Equation {Grouped Like Terms} :</em>
3c - 7c + 5d + d + 10
Now we add similar elements.
<em>Old Equation :</em>
3c - 7c + 5d + d + 10
<em>New Equation {Added Similar Elements} :</em>
-4c + 5d + d + 10
Next we add the other similtar elements.
<em>Old Equation :</em>
-4c + 5d + d + 10
<em>New Equation {Add Similar Elements} :</em>
-4c + 6d + 10
<em>So, this means that the equation 10 + 3c + 5d - 7c + d simplified is</em> -4c + 6d + 10.
Hope this helps!
- Lindsey Frazier ♥
Answer:
The height of wall is 3 feet and length of wall is 5 feet
Step-by-step explanation:
Given as :
The Area of retaining wall = 15 square feet
Let The width of wall = W feet
The Height of wall = ( W - 2 ) feet
Now, Area of Rectangle = Height width
Or , 15 ft² = ( W - 2 ) ft × W ft
Or, 15 = W² - 2 W
Or, W² - 2 W - 15 = 0
Or, W² - 5 W + 3 W - 15 = 0
Or, W ( W - 5 ) + 3 ( W - 5 ) = 0
So , ( W - 5 ) ( W + 3 ) = 0
So, W = 5 , - 3
∴ The width of wall = W = 5 feet
And The Height of wall = ( W - 2 ) = 5 - 2 = 3 feet
Hence The height of wall is 3 feet and length of wall is 5 feet. Answer
