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ExtremeBDS [4]
3 years ago
9

Write an expression to represent the perimeter of a rectangle with the length of x -4 and width of 2x +8

Mathematics
1 answer:
gogolik [260]3 years ago
5 0

Answer:

no clue sorry but hi

Step-by-step explanation:

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−20=−4x−6x Find the value of x
xeze [42]

Answer:

\huge\boxed{x=2}

Step-by-step explanation:

-20=-4x-6x\qquad|\text{combine like terms}\\\\-20=-10x\qquad|\text{divide both sides by (-10)}\\\\\dfrac{-20}{-10}=\dfrac{-10x}{-10}\\\\2=x\to x=2

4 0
3 years ago
Use the calculator to graph the functions y = -x + 5 + 2 and y=-(x - 1)2 + 3. Which statement is true?
Nitella [24]
The y is greater than the function
5 0
3 years ago
Andy is alone in the wilderness and eager to get back to camp. Looking at his map (shown below), Andy sees that he might be able
BabaBlast [244]

Answer:

9.5 km

Step-by-step explanation:

8 0
3 years ago
The sum of two numbers is 62, and their difference is 12. What are the numbers?
Ede4ka [16]
X + y = 62 

x - y = 12

Move x over so y is alone in one of the above equations,

y = 62-x

Now substitte in y

x-(62-x) = 12

x - 62 + x = 12

2x = 12 + 62

2x/2 = 74/2

x = 37

Now for y sub in the x!

x + y = 62

(37) + y = 62

y = 62 - 37

y = 25.

So 25 + 37 =62

and 37 - 25 = 12


Method 2 :
Start by stacking the 2 original equations from above,

x+y=62
x-y=12
You want to "cancel" out one of the variable so,

x+y=62
+  +  =  +
x - y =12

So then you add,

2x = 74

2x / 2 = 74 / 2

x = 37.

Now you can once again sub it back into the original equation to solve for y,

x+y=62
(37)+y=62
y=62-37
y=25

Hope this helps!








5 0
3 years ago
Select the number line that represents the solution of the inequality<br>7- x 24.​
Elodia [21]

Answer:

The correct answer is A.

4 0
3 years ago
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