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Naya [18.7K]
3 years ago
7

0.72% as a decimal.......

Mathematics
1 answer:
Helen [10]3 years ago
3 0
To convert a fraction to a decimal you move the decimal point two spaces to the left

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The perimeter of a rectangle is 20.2 CM and it's area is 24.4 cm squared what is its length and width
erma4kov [3.2K]

Answer:

Length of Rectangle = 4 cm    And

Width of Rectangle = 1.9 cm      

Step-by-step explanation:

Given as :

The perimeter of rectangle = 20.2 cm

The area of rectangle is 24.4 cm

Let the length be L

And width be w

Now Area of rectangle = Length × width  

Or,  24.4 = L × W

And Perimeter = 2 (Length + Width ) = 2 (L + W )

Or,   20.2         = 2(L + W )

Or , L + W = 10.1 cm                   ............ 1

Now, (L - W )²  = (L + W)² -4 LW

Or,   (L - W )²  = ( 10.1)² -4 (24.4)

I.e    (L - W )² = 4.41

Or , L - W = 2.1 cm                    .............. 2

SO , From 1 and 2

( L + W) + (L - W) = 10.1 cm - 2.1 cm

Or, 2L = 8

∴  Length = 4 cm

Again , Width = 4 cm - 2.1 cm = 1.9 cm

Hence   Length of Rectangle = 4 cm    And

             Width of Rectangle = 1.9 cm       Answer

6 0
3 years ago
Kyle crawled 49.8 feet in 6 minutes, how far did he crawl every minute…
Blizzard [7]

Answer:

assuming that kyle crawled at the same pace for six minute then it would be 8.3 feet each minute

Step-by-step explanation:

8 0
2 years ago
Write "3 x 3 x 5 x 5" in exponential form.
Tomtit [17]

Answer:

225xxx   3

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Lucy drove 300 miles in 10 hours. On average, how fast did she drive in hours per
Simora [160]

Answer: 30 miles per hour

Step-by-step explanation:

Speed = distance / time

= 300 / 10

= 30 miles per hour

7 0
3 years ago
A rectangle has an area of 54 square centimeters. The width is 3 more
Troyanec [42]

Answer:

W = 6

L = 9

Step-by-step explanation:

area = 54 = L x W

L = W + 3

substitute for L:

54 = W(W + 3)

W² + 3W = 54

W² + 3W - 54 = 0

(W + 9)(W - 6) = 0

W = 6

L = 6 + 3 = 9

7 0
3 years ago
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