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Alex73 [517]
3 years ago
15

Richard walks every day for exercise at a rate of 1 kilometer every 20 minutes.

Mathematics
1 answer:
OleMash [197]3 years ago
7 0

Answer:

3000 meters

Step-by-step explanation:

1 kilometer = 1000 meters

1 kilometers = every 20 minutes

3× 1000 meters= 20 min ×3

3000 meters = 60 min/ 1 hour

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An equilateral triangle has a perimeter of 48 centimeters. If the triangle is dilated by a factor of 0.75, what is the length of
elena55 [62]
The length of each side is 28 cm. 
the perimeter of the equilateral triangle is 48 cm. To find each side of the original triangle, you do 48/3=16cm. since the triangle dilate by 0.75, then you can just do 0.75*16=12cm. then you have to add 12 to 16 because the triangle gets bigger by 12 cm. so 16+12=28 cm.
4 0
3 years ago
The area of a rectangle is 229.2 m2. If the length is 15 m, what is the perimeter of the rectangle
igor_vitrenko [27]

Answer:

\large\boxed{P=60.56\ m}

Step-by-step explanation:

The formula of an area of a rectangle:

A=lw

l - length

w - width

We have

A=229.2\ m^2\\\l=15\ m

Substitute:

15w=229.2          <em>divide both sides by 15</em>

w=15.28\ m

The formula of a perimeter of a rectangle:

P=2(l+w)

Substitute:

P=2(15+15.28)=2(30.28)=60.56\ m

8 0
3 years ago
Help please :]<br> 6x-2 = 8x+11
slavikrds [6]

Step-by-step explanation:

  • 6x-2=8x+11
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  • x=13/-2
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6 0
2 years ago
Read 2 more answers
Which side lengths cannot form a triangle? Select all that apply.
jarptica [38.1K]

7cm,8cm,13cm

16cm,4cm,18cm

11cm,21cm,13cm

5 0
3 years ago
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prisoha [69]
I believe the answer is B
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3 years ago
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