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balu736 [363]
3 years ago
12

The perimeter of an equilateral triangle is 3 (+ 5). The perimeter of a rectangle is 2 (2x - 3) + 2(2). If the perimeters of the

two figures are equal, then what is the value of r?​
Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0

Answer:

3.25

Step-by-step explanation:

Perimeter of triangle = 3(5) = 15 cm

Perimeter of rectangle = 2(2x - 3 + 4)

Perimeter = 2(2x + 1)

Perimeter = 4x + 2

4x + 2 = 15

4x = 15 - 2

4x = 13

x = 13/4

x = 3.25

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ira [324]
25,5 minutes=25,5/60 hours=0,425 hours

3,75/0,425 miles/hour =8,8235≈8,82 miles/hour
3 0
4 years ago
0= 8-2x divided by 5
Stells [14]

Answer:

Step 1: Simplify both sides of the equation.

0= 8− \frac{2x}{5}

0 = 8 + \frac{-2}{5}x

0 = \frac{-2}{5}x+8

Step 2: Flip the equation.

\frac{-2}{5} x + 8=0

Step 3: Subtract 8 from both sides.

\frac{-2}{5} x+8-8=0-8

\frac{-2}{5} x=-8

Step 4: Multiply both sides by 5/(-2).

(\frac{5}{-2} ) *( \frac{-2}{5} x) = (\frac{5}{-2} )*(-8)

<h2>Therefor, the answer is x=20</h2><h2 />

* Hopefully this helps. Mark me the brainliest:)!!!

3 0
3 years ago
−2(3x−4)−x−3=<br> \,\,33<br> 33
notsponge [240]

Answer: =-7x+5

Step-by-step explanation:

-2\left(3x-4\right)-x-3

=-\left(2\left(3x-4\right)+x+3\right)

=-\left(6x-8+x+3\right)

=-\left(7x-5\right)

=-7x+5

5 0
3 years ago
Can someone help me with this? 8th grade math
tatyana61 [14]

Answer:

ooohh yeah i kinda suck at geometry lol nearly failed sophomore year last year haha

Step-by-step explanation:

6 0
3 years ago
Five over twenty five÷ 100
hjlf

Answer:

20

Step-by-step explanation:

According to the question,five over 25 divided by 100

Can also be written as

5/25/100

So

5/25×100

1/5 ×100

20

So the final answer is 20

3 0
4 years ago
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