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Anna11 [10]
3 years ago
11

Explain how to find 20 ÷ 4 by making an array.

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
6 0
You can put 20 objects in  4 rows
Nadusha1986 [10]3 years ago
6 0
Thi k of it as 5×4 or so
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The area of a trapezoid is 243cm2. The height is 18cm and the length of one of the parallel sides is 10cm. Find the length of th
Irina18 [472]

Answer:

Side_2 = 17\ cm

Step-by-step explanation:

Given

Shape: Trapezoid

Area = 243cm^2

Height = 18cm

Side_1 = 10cm

Required

Determine the length of the second parallel side

The area of a trapezoid is:

Area = \frac{1}{2}(Side_1 + Side_2) * Height

Substitute values for Area, Height and Side1

243 = \frac{1}{2}(10 + Side_2) * 18

Multiply both sides by 2

2 * 243 = 2 * \frac{1}{2}(10 + Side_2) * 18

486 = (10 + Side_2) * 18

Divide both sides by 18

27 = 10 + Side_2

Side_2 = 27 - 10

Side_2 = 17\ cm

Hence;

<em>The length of the second parallel side is 17cm</em>

8 0
3 years ago
Here it is pls answer
kirza4 [7]

Answer:

1,100

Step-by-step explanation:

Round all numbers first

200, 200, 200, 200, 100, 200

then add to get 1,100

i always get these questions wrong so be careful lol

3 0
3 years ago
Some rectangles are not parallelograms
VARVARA [1.3K]

Answer:

I'm not sure what your asking, but, no, all rectangles are parallelograms.

I found this over the internet, and I hope it helps you understand why a rectangle is always a parallelogram, but a parallelogram is not always a rectangle:

It is true that every rectangle is a parallelogram, but it is not true that every parallelogram is not a rectangle. For instance, take a square. It's a parallelogram — it is a quadrilateral with two pairs of parallel faces. But it is also a rectangle — it is a quadrilateral with four right angles.

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Can someone give me the answer to this please?
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Write the value of the digit 9 on 913,256
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The digit 9 is worth 900,000
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4 years ago
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