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Pachacha [2.7K]
3 years ago
7

1.4x+1.1=8.3-x Explain your answer

Mathematics
1 answer:
IgorLugansk [536]3 years ago
6 0

Answer:

x=3

Step-by-step explanation:

1.4x+1.1=8.3-x

1.4x+x=8.3-1.1

2.4x=7.2

x=7.2/2.4

x=3

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A shelf contains 5 nonfiction and 6 comic books. Randomly, you choose one for yourself, set it aside, and choose one for your fr
makvit [3.9K]

Answer:

As the first event outcome affects the probability of the outcomes of the second event, both events are dependant.  

Step-by-step explanation:

The events are not independent.

The reason is that the first event affects the outcome of the second event.

This happen because the if we choose a comic book for ourselves, there is a probability of 6-1=5 out of 5+5=10 of getting a comic book for our friend (P=50%).

If we choose a nonfiction book four ourselves, the probability of getting a comic book for our friend is 6 in 10 (P=60%).

As the first event outcome affects the probability of the outcomes of the second event, both events are dependant.  

8 0
3 years ago
A concert sold out for 12 performances. Altogether 8,208 tickets were sold. How many tickets were sold for each performance?
lisabon 2012 [21]

Answer:

684 tickets were sold for each performance

Step-by-step explanation:

8,208 divided by 12 = 684

8 0
3 years ago
Read 2 more answers
The 18 faculty members in a college math department range in age from 32 to 68. A stem plot follows: The first and third quartil
valentina_108 [34]

Answer:

Q_{1}=39, \:and\: Q_{3}=58

Step-by-step explanation:

1) This Stem and Leaf plot works like a Histogram. Completing the question, check below the Stem plot. Look the data out of the Stem plot and within (in the graph below)

32, 34 , 38 , 39 , 39 , 40 , 43 , 45 , 46 , 49 , 53 , 54 , 57 , 58 , 59 , 59 , 63 , 68

2) Notice how the first digit is on the Stem column (check below)

3) To find the first and Third Quartiles

Let's use the formulas to find the position, then the value. As it follows:

Q_3=\frac{3}{4}(n+1) \Rightarrow  Q_3=\frac{3}{4}(18+1) Q_3=14.25 \approx14th =58

Q_1=\frac{(n+1)}{4} \Rightarrow Q_1=4.75 th \approx Q_1 =5th =39

4 0
3 years ago
-10/3 y -1/5 se convierte en...
blsea [12.9K]
This is the correct answer is

8 0
3 years ago
The ratio of Males to females in the crowd at a rock concert is 5:4
Lerok [7]

Answer:

The number of females is 288.

Step-by-step explanation:

Let the number of females be x.

5:4 = 360:x

We can write the equal ratios as a proportion.

5/4 = 360/x

Cross multiply:

5x = 360 * 4

5x = 1440

x = 288

Answer: The number of females is 288.

4 0
3 years ago
Read 2 more answers
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