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lyudmila [28]
4 years ago
7

Chris joined a website that offers a special rate for music downloads to its members. The membership costs $19.95 and then you c

an download albums for $3.95 each. At the end of a year, Chris has spent $63.40 on the site. What equation can be used to find how many albums Chris downloaded during the year, a ?
Mathematics
1 answer:
miss Akunina [59]4 years ago
7 0
I believe this would be your answer. 

Let 'a' repersent the number of albums downloaded.  
$19.95 + ($3.95 * a) = $63.40

I hope this helps!
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Help please I really need it
gtnhenbr [62]
So we want to solve <span><span><span>2x </span>− 40 </span>= <span>3y </span></span>for x<span><span><span><span>2x </span>− 40 </span>+ 40 </span>= <span><span>3y </span>+ 40</span></span>(Add 40 to both sides!)<span><span>2x </span>= <span><span>3y </span>+ <span>40
Now divide both sides by 2!
</span></span></span>\frac{2x}{2} = \frac{3y + 40}{2} \ \textgreater \  x =  \frac{3}{2}y + 20
Now substitute \frac{3}{2}y + 20 for x in 2y = -4x + 48&#10;&#10;
2y = -4( \frac{3}{2}y + 20) + 48
Which then gives us..
<span><span>2y </span>= <span><span>−<span>6y </span></span>− 32</span></span>(Make sure to simplify both sides of the equation)<span><span><span>2y </span>+ <span>6y </span></span>= <span><span><span>−<span>6y </span></span>− 32 </span>+ <span>6y</span></span></span>(Now add 6y to both sides)<span><span>8y </span>= <span>−<span>32
Now divide both sides by 8
</span></span></span>\frac{8y}{8} = \frac{-32}{8} \ \textgreater \  y = -4
Now we have to substitute -4 for y in x =  \frac{3}{2}y + 20 \ \textgreater \   \frac{3}{2}(-4) + 20 \ \textgreater \  x = 14
So we end up getting...
<span>x = <span><span>14<span> and </span></span>y </span></span>= <span>−<span>4.
</span></span>Hope this helps!
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How far away is the moon
otez555 [7]

 Answer : 238,900 mi

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3 years ago
How many pencils measure 6 inches ​
maksim [4K]

Answer:

11

Step-by-step explanation:

because that are 11 pencils that are 6 inches or longer, that's what the picture says.

6 0
3 years ago
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In an university, out of 100 students 15 offered Mathematics only;
SVETLANKA909090 [29]
I do not understand what you want me to solve.

4 0
4 years ago
Y=-5x+30 7x+3y=42 1111
jekas [21]

Step-by-step explanation:

7x+3y=42.

y=-5x+30.

7x+3(-5x+30)=42

7x-15x+90=42

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x=-48/-8

x=6

y=-5x+30

y=-5×6+30

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y=0

(6,0)

5 0
3 years ago
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