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3 years ago

(math)

Mathematics

1 answer:

slega [8]3 years ago

5 0

Answer:

c rectangle I'm pretty sure

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Kelly has 4 times as many songs on her music player al Lou. Tiffany has 6 times as Lou. Altogether they have 682 songs on their

Sphinxa [80]

Let the Number of Songs in the Music Player of Lou be : L

Given that Kelly has 4 times as many songs as Lou has in her Music Player

⇒ The Number of songs in Music Player of Kelly = 4 × L

Given that Tiffany has 6 times as many songs as Lou has in her Music Player

⇒ The Number of songs in Music Player of Tiffany = 6 × L

Given that Altogether have 682 songs in their Music Players

⇒ Tiffany songs + Lou songs + Kelly songs = 682

⇒ 6L + L + 4L = 682

⇒ 11L = 682

⇒ L = 62

⇒ Number of Songs in Music Player of Lou = 62

⇒ Number of Songs in Music Player of Kelly = 4 × L = 4 × 62 = 248

7 0

3 years ago

As the number of pages in a photo book increases, the price of the book also increases. There is an additional shipping charge o

aev [14]

Since the maximum budget that Jennifer has is $62.10. You can input P=62.10 so now you can start solving.

Steps:
62.10 = (20+0.5x)+0.15(20+0.5x)
62.10 = 20 + 0.5x + 3 + 0.075x
(Combine "like" terms: so for here you combine x together)
62.10 = 0.575x + 20 +3
62.10 = 0.575x + 23
-23 - 23
39.10 = 0.575x
(Now divide 0.575 on both sides.)
$\frac{39.10}{.575} = \frac{.575x}{.575}$
You should end up with:
x = 68

Jennifer can have 68 pages in her book to fit her budget.

3 0

4 years ago

Please h e l p answer this??

aleksandrvk [35]

A, 4(750c - 700t). Hope this helps.

6 0

3 years ago

If the null space of A4×5 is exactly a two-dimensional plane, answer the following:

Hatshy [7]

Answer:

A is a 4 x 5 matrix => A: U -> V, dim U = 5, dim V = 4

Null space is exactly two dimensional plane

dim null (A) = 2

II.

Rank A = dim U - dim Null A = 5 - 2 = 3

III.

Number of linearly Independent columns of A is the rank of A = 3

IV.

Yes, The system Ax = b has no solution sometimes as range of A \neq V

Yes,Sometimes Ax = b has a unique solution

VI.

Yes, sometimes Ax = b has infinitely many solutions

8 0

3 years ago

What is the estimate of 3630?

Paul [167]

The estimate of 3630 is 4000. because the hundreds place is higher than 5, so you would go a number higher

4 0

3 years ago