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Tamiku [17]
2 years ago
5

1 of 3

Mathematics
1 answer:
lara31 [8.8K]2 years ago
3 0

Answer:

a

n

=

2

2

n

−

1

Step-by-step explanation:

hope this helps

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Will Mark Brainliest !!
NeX [460]

Answer:

y=2/5 - 1/5

explanation:

6 0
3 years ago
Pls help i need this asap
Zielflug [23.3K]

Answer:

Let x = # of commercials

      y = # of movies

<u>System of Equations:</u>

x + y = 90

40x + 110y = 500

Step-by-step explanation:

We have to set our variables before we start solving. After setting the variables, we can set up the equations. If x = # of commercials and y = # of movies, then we can assume x + y = 90, as there have been a total of 90 commercials and movies played altogether. Then, we know that their worth is $500, so the price of all the commercials played and the price of all the movies played (which is 40x + 110y) sum to $500.

8 0
1 year ago
There are 40 pupils in a class. 75% of them are present. How may are present? How many are absent?
Aleonysh [2.5K]

Answer:

30 are present 10 are absent

Step-by-step explanation:

75%=3/4

so 3/4 of them are absent

3/4(40)=30

and 40-30=10 are absent

8 0
2 years ago
Find the y value for the point that divides the line segment CD into a ratio of 4:1.
7nadin3 [17]

Answer:

We also drew a graph with 2 examples.

Step-by-step explanation:

If we have the line segment  CD, we can divide it by 4: 1 as follows:

If point C has the coordinates (x1, z1) and point D has the coordinates (x2, z2), we calculate coordinate the points Y as follows:

y1 = (x2-x1) · 4/5

y2 = (z2-z1) · 4/5

In this way we have obtained the point Y with the coordinates (y1, y2), and the point Y divides the line segment  CD by 4:1.

We also drew a graph with 2 examples.

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3 years ago
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zloy xaker [14]

Answer:

B

Step-by-step explanation: it is easy

7 0
2 years ago
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