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Ad libitum [116K]
3 years ago
15

HELP!

Mathematics
1 answer:
wariber [46]3 years ago
3 0

Answer: 50w+150>650

w>10

Step-by-step explanation: Subtract 150 on both sides, leaving 50w>500. Divide both sides by 50 to get w>10

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a web music store offers two version of a popular song. the size of the standard version is 2.9 megabytes (MB). the size of the
miv72 [106K]

Answer: 260 downloads of the standard version were there.

Step-by-step explanation:

Let x represent the number of downloads of the standard version.

Let y represent the number of downloads of the high-quality version.

Yesterday, the high-quality version downloaded four times as often as the standard version. It means that

y = 4x

The size of the standard version is 2.9 megabytes (MB). the size of the high-quality version is 4.6 MB. the total size downloaded for the two versions was 5538 MB. It means that

2.9x + 4.6y = 5538- - - - - - - - - - - -1

Substituting y = 4x into equation 1, it becomes

2.9x + 4.6 × 4x = 5538

2.9x + 18.4x = 5538

21.3x = 5538

x = 5538/21.3

x = 260

6 0
3 years ago
Please help me. This is real confusing. ​
katrin2010 [14]

Answer:

1st problem: b) A=2500(1.01)^{12t}

2nd problem:  c) A=2500e^{.12t}

Step-by-step explanation:

1st problem:

The formula/equation you want to use is:

A=P(1+\frac{r}{n})^{nt}

where

t=number of years

A=amount he will owe in t years

P=principal (initial amount)

r=rate

n=number of times the interest is compounded per year t.

We are given:

P=2500

r=12%=.12

n=12 (since there are 12 months in a year and the interest is being compounded per month)

A=2500(1+\frac{.12}{12})^{12t}

Time to clean up the inside of the ( ).

A=2500(1+.01)^{12t}

A=2500(1.01)^{12t}

----------------------------------------------------

2nd Problem:

Compounded continuously problems use base as e.

A=Pe^{rt}

P is still the principal

r is still the rate

t is still the number of years

A is still the amount.

You are given:

P=2500

r=12%=.12

Let's plug that information in:

A=2500e^{.12t}.

6 0
3 years ago
Solve:<br><br><br> 3-x+1=2<br><br><br><br> Thank youuuu ‍♀️
timurjin [86]

Answer:

<h2>x = 2</h2>

Step-by-step explanation:

3 - x + 1 = 2              <em>combine like terms</em>

-x + (3 + 1) = 2

-x + 4 = 2           <em>subtract 4 from both sides</em>

-x  +4 - 4 = 2 - 4

-x = -2                 <em>change the signs</em>

x = 2

5 0
3 years ago
Read 2 more answers
(x2-2x+2)+(3x2-4x-10)​
Angelina_Jolie [31]

Answer:

4x^2-6x-8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
One month Leila rented 3 movies and 2 video games for a total of $21 . The next month she rented 8 movies and 4 video games for
lina2011 [118]
<span>x = price movie = 4.25
y = price game = 5.50</span>
7 0
3 years ago
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