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Yakvenalex [24]
3 years ago
6

Iris has 120 songs on her playlist. Each week, she downloads 4 new songs.

Mathematics
2 answers:
prohojiy [21]3 years ago
7 0

Answer:

120 + 4w

Step-by-step explanation:

weeks = w

120 songs plus 4 in w weeks

120 + 4w

aksik [14]3 years ago
6 0

Answer:

4w+120.

Step-by-step explanation:

She downloads 4 songs for every week which is represented as 4w, and she started with 120 songs which is represented as +120.

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The rectangle below has an area of 70 square meters. Find the dimensions of the rectangle. (x - 11) (x - 8)
aniked [119]

Answer:

the dimensions of the rectangle are 10 and 7.

Step-by-step explanation:

Given;

area of the rectangle, A = 70 m²

dimensions of the rectangle, = x - 11 and x - 8

The area of rectangle is calculated as;

A = L x B

70 = (x - 11)(x - 8)

70 = x² - 8x - 11x + 88

0 = x² - 8x - 11x + 88 - 70

0 = x² - 19x + 18

0 = x² - x - 18x + 18

0 = x(x - 1) -18(x - 1)

0 = (x - 18)(x - 1)

0 = x - 18     or    

0 = x - 1

x = 18 or 1

The dimensions of the rectangle are calculated as;

L = 18 - 11  = 7

B = 18 - 8 = 10

Therefore, the dimensions of the rectangle are 10 and 7.

7 0
2 years ago
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3 years ago
First piece is 5.2 cm the second piece must be 1.5 times at long as the first
julsineya [31]
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6 0
3 years ago
Natasha is 12 years old and her teacher is 36. Which ratio best repersents Natasha's age in 4 years and here teachers age in 4 y
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3 0
2 years ago
Given the equation square root of 2x-1=7 solve for x and identify if it is an extraneous solution. I came up with the answer 25
alexira [117]

Step-by-step explanation:

To check if a solution is extraneous, simply plug it back into the original equation.  If it works, then solution isn't extraneous.

√(2x−1) = 7

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7 = 7

So the solution isn't extraneous.

3 0
2 years ago
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