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yanalaym [24]
3 years ago
13

1/4(8x-4)= need help please answer

Mathematics
1 answer:
Karolina [17]3 years ago
3 0

Answer:

2x-1 is the answer (or if you're trying to multiply it, the answer is -8.)

Step-by-step explanation:

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7/5

Step-by-step explanation:

reciprocal means flip the equation

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David bought 3 dvds and 4 books for $40 at a yard sale. Anna bought 1 dvd and 6 books for $18. How much did each dvd and book co
Ber [7]

Answer:

A book is worth $1 and a DVD is worth $12.

Step-by-step explanation:

The equations (2 unknowns and two equations, d is for a DVD and b is for a book):

For David: 3d+4b=40

For Anna: d+6b=18

Now multiply the second equation with -3 and add to the first equation:

3d+4b=40

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Combined equation: −14b=−14 and b=1 (means that each book is worth $1).

 

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A book is worth $1 and a DVD is worth $12.

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3 years ago
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Detailed answer is in the image attached.

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