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JulijaS [17]
3 years ago
11

I only need the first one ( 45% of 30) but please keep in mind that I do need help with the other two, but they are optional.

Mathematics
2 answers:
VLD [36.1K]3 years ago
7 0
45%=.45=45/100
take 45/100 * 30 = 45*30/100
Honestly you can leave it as a fraction since it is rational and all rationals can be represented as a/b
repeat process for 2 and 3
Usimov [2.4K]3 years ago
6 0
45% of 30 is 13.5
40% of 175 is 70
20% of 60 is 12
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Answer:

<h2>Length = 13 in. </h2>

 Step-by-step explanation:

perimeter of a rectangle (P) = 2L + 2W

where;

P = 42 in.  

Length (L) = 5 + W

Find:

length (L) of the rectangle

solution:

P = 2L + 2W

42 = 2(5 + W) + 2W

42 = 10 + 2W + 2W

42 - 10 = 4W

32 = 4W

W = 32/4

W = 8

Length (L) = 5 + W

                = 5 + 8

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proof:

42 = 2(13) + 2(8)

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3 years ago
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Alecsey [184]

Answer:

Lineal.

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

7 0
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I'm having trouble with this problem ​
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