<img src="https://tex.z-dn.net/?f=x%20-%206%3D%20-55" id="TexFormula1" title="x - 6= -55" alt="x

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nadezda [96]

3 years ago

ss="latex-formula">

Mathematics

2 answers:

Helga [31]3 years ago

5 0

Answer:

Step-by-step explanation:

x - 6 = -55 add 6 to both sides

x - 6 + 6 = -55 + 6

x = -49

vlabodo [156]3 years ago

5 0

That’s too easy, x= -49

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There are 31 coins of dimes and quarters. If the number of dimes is 5 more than the number of quarters, how many quarters are th

emmasim [6.3K]

Answer:

13 Quarters and 18 Dimes

Step-by-step explanation:

Let D and Q stand for the numbers of Dimes(D) and Quarters(Q). Give x and y a break, and make it easier to remember which is which.

D + Q = 31

D = Q + 5

Therefore:

D + Q = 31

(Q+5) + Q = 31

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2Q = 26

Q = 13

Then D = (13+5) or 18

================

Check:

D + Q = 31 ?

18 + 13 = 31 YES

----------------------

D = Q + 5 ?

18 = 13 + 5 YES

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2 years ago

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ludmilkaskok [199]

Answer:

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Step-by-step explanation:

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3 years ago

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forsale [732]

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3 years ago

A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in

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Step-by-step explanation:

Since we have given that

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At 327 nm, absorbance = 0.191

As we have given that

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$C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}$

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3 years ago