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JulijaS [17]
3 years ago
8

The sound level of a jet plane is approximately 140 dB. The intensity of the sound of a jet plane is approximately

Mathematics
1 answer:
Leya [2.2K]3 years ago
8 0

Answer:

280 DB

Step-by-step explanation:

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A rectangular carpet measures 12 m by 5 m.
Zepler [3.9K]

Answer:

\frac{1}{15}

Step-by-step explanation:

Area of the Rectangular Carpet=12*5=60m²

Area of the Square rug=2*2=4m²

Expressing the area of the rug as a fraction of the total area of the carpet, we have:

\frac{\text{Area of Rug}}{\text{Area of Carpet}}=\frac{4}{60}\\=\frac{1}{15}.

The fraction of the carpet that is covered by the rug is \frac{1}{15}.

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3 years ago
Convert 0.9 into a fraction using 100 for denominator
Nuetrik [128]
0.9 =  \frac{90}{100} =  \boxed{ \frac{9}{10} \ Answer}
6 0
3 years ago
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Find the value of x, which makes the area of this triangle equal 72.
Ghella [55]
Area of a triangle=1/2(base x height)
Area=72, Base=8, Height=2x-3
Plug it in.
72=1/2(8 x (2x-3))
72=1/2(16x-24)
72=8x-12
84=8x
x=10.5
5 0
3 years ago
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23=5-2/3d then what is the value of 6d?
navik [9.2K]

Answer:

-162

Step-by-step explanation:

23=5-2/3d

2/3d=-18

d= -27

6d= 6* -27

6d= -162

4 0
3 years ago
Zoe paid 18.60 in sales tax and tips for dinner. The sales tax is 11% and she tipped 20%. What was the price of Zoe’s dinner bef
photoshop1234 [79]

Answer:

$60 was the price of Zoe's dinner, before sales tax and tip.

Step-by-step explanation:

  • Sales tax = 11% * original price = 0.11 * x= 0.11x
  • Tips for dinner = 20% * original price = 0.20 * x = 0.2x
  • 0.11x + 0.2x = 18.60
  • 0.31x = 18.60
  • x = 60
  • $60 was the price of Zoe's dinner, before sales tax and tip.
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3 years ago
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