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Sveta_85 [38]
3 years ago
11

A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the

high-quality version is 4.8 MB. Yesterday, the high-quality version was downloaded twice as often as the standard version. The total size downloaded for the two versions was 2808 MB. How many downloads of the standard version were there?
Mathematics
1 answer:
suter [353]3 years ago
5 0
2.1S + 4.8H = 2808
H = 2S

2.1S + 4.8(2S) = 2808
2.1S + 9.6S = 2808
11.7S = 2808
S = 2808/11.7
S = 240

H = 2S
H = 2(240)
H = 480

so the standard version (S) has 240 downloads and the high quality version (H) has 480 downloads

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Please answer this question now
shtirl [24]

Answer:

76 degrees.

Step-by-step explanation:

Let as consider O is the center of the circle . So from the figure it is clear that

\angle AOB=44^{\circ}

\angle COD=118^{\circ}

By central angle theorem, central angle subtended by an arc is twice of inscribed angle of the same arc.

We know that, \angle BAD=97^{\circ} and angle BOD is the central angle subtended by arc BD.

\angle BOD=2\times \angle BAD

\angle BOD=2\times 97^{\circ}

\angle BOD=194^{\circ}

Now,

\angle BOD=\angle BOC+\angle COD

194^{\circ}=\angle BOC+118^{\circ}

194^{\circ}-118^{\circ}=\angle BOC

76^{\circ}=\angle BOC

m(arc(BC))=76^{\circ}

Therefore, the measure of arc BC is 76 degrees.

5 0
3 years ago
Which sets of ratios are a proportion? (Choose all that apply) *
vladimir1956 [14]

Answer:

<h2>Sets of Ratios that are Proportion</h2>

3/11 and 17/6

<h3>12/7 and 36/21</h3>

60/55 and 7/25

7/6 and 52/48

<h3>4/10 and 8/20</h3>

<h3>Solution:</h3>

> 12/7 and 36/21

\frac{12}{7}  =  \frac{36}{21}  \\ 12(21) = 36(7) \\ 252 = 252

> 4/10 and 8/20

\frac{4}{10}  =  \frac{8}{20}  \\ 4(20)  = 8(10) \\ 80 = 80

5 0
3 years ago
Albert multiplied a whole number by a fraction. The whole number is greater than one. The fraction is greater than zero and less
-BARSIC- [3]

What are the answer options?

8 0
3 years ago
4 • (6 – 4) 2 ÷ 2
Dmitry_Shevchenko [17]

Answer:

Cary is wrong

Step-by-step explanation:

4* (6-4)= 4* 2=8

I think it is saying (8*2) divided by to, which in that case is 8,

but if it is asking 8 (2/2) then that would also be 8 I believe. I really hope this is correct and you have a great day :)

5 0
2 years ago
Read 2 more answers
Pretest: Unit 1
Alex_Xolod [135]

A vertical line that the graph of a function approaches but never intersects. The correct option is B.

<h3>When do we get vertical asymptote for a function?</h3>

Suppose that we have the function f(x) such that it is continuous for all input values < a or > a and have got the values of f(x) going  to infinity or -ve infinity (from either side of   x = a) as x goes near a, and is not defined at   x = a, then at that point, there can be constructed a vertical line  x = a and it will be called as vertical asymptote for f(x) at   x = a

A vertical asymptote can be described as a vertical line that the graph of a function approaches but never intersects.

Hence, the correct option is B.

Learn more about Vertical Asymptotes:

brainly.com/question/2513623

#SPJ1

3 0
1 year ago
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