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ladessa [460]
3 years ago
9

The school orchestra is creating a CD of their last concert. The total cost is $550 + 3.50 per CD. Write an expression for the c

ost of creating the CDs based on the number of CDs n.
Mathematics
1 answer:
Natalija [7]3 years ago
6 0
550 + 3.5n <== ur expression
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Can anyone help me pls ( if you can, can you do it on paper and post it with the answer)
Alla [95]

Answer:

x = 6

Step-by-step explanation:

44 + 3x = 5x + 2x + 20 transfer like terms to the same side of the equation with the opposite sign:

44 - 20 = 5x + 2x - 3x add/subtract like terms

24 = 4x divide both side by 4

6 = x

8 0
2 years ago
Logarithm 2. The alkalinity of a fluid (pH) can be modeled in terms of its hydrogen ion concentration (H^+,measured in moles/lit
makkiz [27]

ok. We are given the following equation:

ph=-\log (H)

Where:

\begin{gathered} P=\text{ alkalinity} \\ H=\text{ hydrogen ion concentration} \end{gathered}

Since we are asked to determine "H" we will solve for "H" in the equation. To do that we will first multiply both sides by -1:

-ph=\log (H)

Now, we will use the following property of logarithms:

\log _aB=c\rightarrow B=a^c

Applying the property and having into account that:

\log (H)=\log _{10}(H)

We get:

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Now we substitute the given value of "pH = 4.5":

10^{-4.5}=H

Solving the operation:

0.000032=H

Therefore, the hydrogen ion concentration of the fluid is 0.000032

7 0
1 year ago
True or false. the sum of the intrtior angles of a quadrilateral equals 340 degrees
elena55 [62]
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Harlamova29_29 [7]
2 should be your answer
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Solve for W:<br> P = LW
MAXImum [283]

Answer:

W=P/L

Step-by-step explanation:

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3 years ago
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