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vekshin1
3 years ago
12

Don't understand plzzzzz help

Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0
Which one because I can only answer one that’s the policy of Brainly
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So sorry to ask another question but I need some help-
Vika [28.1K]

Answer:

14x + 23

Step-by-step explanation:

The lengths of three sides of a triangle are 5x + 9 feet, 2x + 14 feet, and 7x feet.

The perimeter of a triangle: the sum of all of its sides.

5x + 9 + 2x + 14 + 7x

14x + 23

It's the expression of the perimeter of the triangle. Once you will be asked to find x, you'll probably be given the exact perimeter of the triangle.

7 0
2 years ago
Solve the system of equations 2x + 3y = 40 and –2x + 2y = 20.
Flura [38]
2x + 3y = 40
+
-2x + 2y = 20
___________                  Adding both equations

0x + 5y  = 60
____________


5y = 60
y = 60/5 = 12

y = 12.

Since we have gotten y =12, and the only option with that is option D.

So we don't have to solve for x.

<span>The answer is D.</span>
7 0
3 years ago
Please help!!!!!!!!!!
My name is Ann [436]

Find an easy to read point such as (10, 40).

The ratio of y to x is 40/10 = 4/1.

Now look in your choices and find a point in which y is 4 times x.

The only such point is (5, 20).

Answer: C. (5, 20)

8 0
3 years ago
Read 2 more answers
Helppppppppp I’m struggling
UkoKoshka [18]

Answer:

ok what must you do

Step-by-step explanation:

6 0
1 year ago
Find the area of the shaded region.
JulijaS [17]
I’ve attached my work…
Hope it helps!

3 0
2 years ago
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