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kaheart [24]
3 years ago
7

How and why does conduction influence the temperature of air above a warm surface? above a cold surface?

Mathematics
1 answer:
Andreyy893 years ago
4 0
This is actually a science question, this is because the air particles with the warmer temperature always go up and air particles with the cooler temperature always goes down, and this process is called convection.
I hope this could help you ;)
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masha68 [24]

Answer:

Step-by-step explanation:

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Identify each expression as linear or nonlinear.<br><br> 8xy. Please answer
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Multiplay 0.6 by 0.9.
Anna71 [15]

0.54

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STEP

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2 years ago
Question<br> Simplify the expression 7(a−3+4b).<br><br> 7(a−3+4b)=
Arte-miy333 [17]

Answer:

7a+28b=21

Step-by-step explanation:

7×a=7a

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7×+4b=+28b

so....

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5 0
3 years ago
A bank loaned out $37,500, part of it at the rate of 11% annual interest, and the rest at 9% annual interest. The total interest
kondaur [170]

Answer:

The Loan amount at 11 % interest rate is $ 18,500   And

The Loan amount at 9 % interest rate is $ 19,000

Step-by-step explanation:

Given as :

Let The loan given at interest rate of 11 % annual  = $ x

And The loan given at interest rate of 9 % annual = ($37,500 - $ x)

Total interest fro both loan = $3745

I.e  CI 1 + CI 2 = $3745

Now, From compound interest method :

Amount= Principal\times (1 + \frac{Rate}{100})^{Time}

A 1 = $ 1\times (1 + \frac{11}{100})^{1}

Or,  A 1 = $ 1.11 x

<u>Similarly</u>

A 2 = ($37,500 -x ) \times (1 + \frac{9}{100})^{1}

Or, A 2 = 1.09 × ($37,500 - $ x)

∵  Compound Interest = Amount - principal

Or, $ 3745 = CI 1 + CI 2

Or,  $ 3745 = ($ 1.11 x - $ x) + ( 1.09 × ($37,500 - $ x) -  ($37,500 - $ x) )

Or,  $ 3745 = $ .11 x+  ($37,500 - $ x) ( .09 )

Or,  $ 3745 = $ .02 x + $ 3375

or,  0.02 x =  $ 3745 - $ 3375

∴   x = $ \frac{370}{.02}

SO,  x = $ 18,500

And $ 37500 - x = $ 19,000

Hence The Loan amount at 11 % interest rate is $ 18,500   And

           The Loan amount at 9 % interest rate is $ 19,000   Answer

4 0
3 years ago
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