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agasfer [191]
2 years ago
6

Help pls ill give Brainlyest to the one who does it step by step.

Mathematics
1 answer:
Elanso [62]2 years ago
7 0

Answer:

12.8% decrease

Step-by-step explanation:

if you find the unit rate for the sale, which would be 125 cents divided by 3 cans, equals around 43.6 cents per can. 43.6 cents is an x% decrease of 50 cents, and to find x easily i multiplied by 2. 43.6 x 2=87.2, and 50 x 2 = 100. that means that the sale price is 87.2 % of the original price, which is a 12.8% decrease.

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How are percent transmittance and absorbance related algebraically?
statuscvo [17]

Answer:

So, if all the light passes through a solution without any absorption, then absorbance is zero, and percent transmittance is 100%. If all the light is absorbed, then percent transmittance is zero, and absorption is infinite.

Absorbance is the inverse of transmittance so,

A = 1/T

Beer's law (sometimes called the Beer-Lambert law) states that the absorbance is proportional to the path length, b, through the sample and the concentration of the absorbing species, c:  


A ∝ b · c

As Transmittance, T =\dfrac{P}{P_0}

% Transmittance, \%T=100\times T

Absorbance,

A=\log_{10} \dfrac{P_0}{P}\\\\A =\log_{10}\times \dfrac{1}{T}\\\\A=\dfrac{\log_{10} 100}{\%T}\\\\A=(2 - log_{10})\times \%T

Hence, A=\log_{10}\times \dfrac{1}{T} is the algebraic relation between absorbance and transmittance.


8 0
2 years ago
How many nickles does it take to make $50?
Rama09 [41]
There are 20 nickles in one dollar, so 20(nickles in a dollar) x 50(dollars) = 1,000
Hope this helps! 
5 0
3 years ago
Read 2 more answers
A rectangle has an area of
Masteriza [31]

Answer:

9.6

Step-by-step explanation:

ratio means you divide one by the other

240/25

9.6

5 0
2 years ago
Read 2 more answers
Which is more 0.5 or 5.0 and which is more 0.5 or 0.50
andriy [413]
1) 5.0
2) same

Hope that helped
And number two is equal because the 0 on the end don't count.
You could ask an teacher if you want, I mean I don't mine
7 0
3 years ago
Read 2 more answers
What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 2.5?
Elanso [62]

Answer:

300 cm

Step-by-step explanation:

8 x 2.5 = 20

6 x 2.5 = 15

20 x 15 = 300 cm²

7 0
2 years ago
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