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3 years ago

15 POINTS TO WHOEVER

Mathematics

1 answer:

USPshnik [31]3 years ago

4 0

Answer:

5x + 7x + x = total number of songs

Step-by-step explanation:

x represents the number of pop tracks

since there are 5 times as many classical as there are pop then classical can be represented by 5x

since there are 7 times as many rap as there are pop then rap can be represented by 7x

when adding all these together you will find the total number of songs on the MP3

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Darcy, Jason, and Maria share 268 dollars. Jason has 20 dollars more than Darcy and Maria has twice as much as Jason. How much m

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Answer:

The amount of money that Darcy and Jason have together is $124

Step-by-step explanation:

Let

x -----> amount of money that Darcy has

y -----> amount of money that Jason has

z ----> amount of money that Maria has

we know that

$x+y+z=268$ ------> equation A

$y=x+20$ -----> $x=y-20$ -----> equation B

$z=2y$ -----> equation C

substitute equation B and equation C in equation A and solve for y

$(y-20)+y+2y=268$

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$4y=268+20$

$4y=288$

$y=72$

Find the value of x

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The amount of money that Darcy has is $52

The amount of money that Jason has is $72

therefore

$52+$72=$124

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3 years ago

HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP DUE SOON

Iteru [2.4K]

Answer:

Step-by-step explanation:

For a all you have to do is multiply by 3 so the answer would be -15

For b all you have to do is subtract 12 then divide by -1 so the answer would be -0.5

for c all you have to do is divide by -10 so the answer would be -0.1/-10 or 0.1/10

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3 years ago