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Lina20 [59]
3 years ago
13

Steps

Mathematics
1 answer:
slamgirl [31]3 years ago
5 0

Answer:

step 2

Step-by-step explanation:

Given

(2x - 3)(5x² - 2x + 7)

2x(5x² - 2x + 7) = 10x³ - 4x² + 14x ← step 1 is correct

- 3(5x² - 2x + 7) = - 15x² + 6x - 21 ← step 2 in her working is incorrect

Adding the results from step 1 and step 2

10x³ - 4x² + 14x - 15x² + 6x - 21 ← collect like terms

= 10x³ - 19x² + 20x - 21

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Kelly has 4 times as many songs on her music player as Lou. Tiffany has 6 times as many songs on her music player as Lou. Altoge
ira [324]
Let the number of songs owned by Lou  be  =  x.

Kelly has 4 times as many songs as Lou    =  4x

Tiffany has 6 times as many songs as Lou  = 6x

They all have total of 682 songs

=    x + 4x + 6x = 682
           11x  = 682
               x  = 682 / 11 .       
               x =62.

How many songs Kelly has  = 4x = 4*62 =  248 songs.
<span>Kelly = 248 songs.</span>
5 0
3 years ago
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Answer:

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best of luck!

6 0
2 years ago
Read 2 more answers
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horrorfan [7]

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3 years ago
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The legs of a right triangle measure 5√2 cm and 4√2 cm. Find the area.
den301095 [7]
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2 years ago
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What is the scale factor?
fgiga [73]

Answer:

2

Step-by-step explanation:

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