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vitfil [10]
3 years ago
6

Cecile buys a move to watch on her phone, but she’s worried about the amount of storage space downloading it will take up. She s

tarts the download and notices it will download at a constant rate. After 3 minutes, she checks her phone and sees that she has 2,345 MB (megabytes) of space available. She checks her phone after 7 minutes and notices that she now has 2,105 MB of space available.
a. How many MB of available storage are being filled by the movie per minute? b. How much space was available on her phone before the download started? c. Suppose the download lasted for a total of 19 minutes. How much available storage remains after downloading the movie?​
Mathematics
1 answer:
likoan [24]3 years ago
8 0
Oh hi lol lol i’m yea lol lol i’m is it a joke like why he
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PLEASE NO LINKS, I will report you.
FromTheMoon [43]

Answer:

for 18 x is 6 and for 20 it is 11

Step-by-step explanation:

For 18, since -1+2x and 5+x is the same thing, set up and equation. WE can simplify to -1+x=5 and then we get x=6

For 20, 18 is 11 since 18=-4+2x. If we simplify we get 22=2x then we can use algebra to say that x=11

Hope this helps :)

7 0
3 years ago
Read 2 more answers
In how many different ways can a man divide 7 different gifts among his 3 children if the eldest is to receive 3 gifts and the o
krok68 [10]

The order in which gifts are received doesn't matter - if child X gets toy 1 then toy 2, it's the same as giving child X toy 2 then toy 1 - so we are counting combinations.

The eldest child receives 3 of the 7 gifts, so they have

\dbinom 73 = \dfrac{7!}{3!(7-3)!} = 35

possible choices of gifts.

The next child receives 2 of the remaining 4 gifts, so they have

\dbinom 42 = \dfrac{4!}{2!(4-2)!} = 6

choices.

The last child receives the remaining 2 gifts, and there is only

\dbinom22 = \dfrac{2!}{2!(2-2)!} = 1

way to select the gifts for them.

By the multiplication using, the total number of ways of distributing 7 gifts among 3 children in the prescribed way is 35 • 6 • 1 = 210.

7 0
2 years ago
A rabbit population doubles every 4 weeks. There are currently five rabbits in a restricted area. If t represents the time, in w
My name is Ann [436]
First, you have to find how many weeks are in 98 and to do so, you would divide it by 7. which turns out to be 14. If you divide 14 by 4 you'll find that their population will double 3 times, but not 3.5 because it is every 4 full weeks.
The equation will look like this, however, I'm not completely certain about the format. I'm using the formula for exponential growth
P(t)=r(2)^t
I did use t as weeks, but for every 4 weeks. R is the number of rabbits. If we were to input our information, we'd get:
P(3)=5(2)^3
If you work it out, you get 40 rabbits. In 14 weeks, the rabbits will double 3 times, so if we were to just figure it out without using the formula, we could double 5 which is 10, double it again, which is 20, and then double it a third time. which is 40.
6 0
3 years ago
(7-10x)/5 simplify express on integers and fractions
Likurg_2 [28]

Answer:

-2x + 7/5

Step-by-step explanation:

(7-10x)/5

= \frac{-10x}{5} + \frac{7}{5}

= -2x + 7/5

8 0
4 years ago
The length of a rectangular room is 7.4m and it's width is 5.5m. Find the area of the room.
oee [108]
Area of a rectangle is
length\times width
(7.4×5.5)m
=40.7m
therefore the area of the room is 40.7m
7 0
4 years ago
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