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antoniya [11.8K]
2 years ago
15

How do you find 2a+b?

Mathematics
1 answer:
ser-zykov [4K]2 years ago
5 0
A = 2/-3  which is -0.6666... 
and b= 1/4. 
so what you want to do is -0.66666666666 * 2 = -1.33333333333
 then you want to do -1.33333333333 + .24 =  (-1.093333333) is your answer
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Okay so plz answer this question step by step,, thank you <br>​
Vikentia [17]

Given:

Total number of students = 20

The marks of the students are 40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37 and 40.

To find:

The frequency distribution table with class size 10.

Solution:

We have, the marks of 20 students.

40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37, 40

Here,

Minimum value = 12

Maximum value = 48

We nee class intervals of size 10. So, the required class intervals are 10-20, 20-30, 30-40, 40-50. In these intervals, lower limit is excluded but the upper limit included.

The required frequency distribution table is

Class intervals      Marks                                                  Frequency

10-20                    12, 15                                                            2

20-30                   22, 27, 20, 25                                             4

30-40                   36, 30, 31, 34, 36, 39, 36, 37                      8

40-50                   40, 41, 43, 48, 46, 40                                  6

Total                                                                                        20

Therefore, the frequency distribution table is

Class intervals:      10-20        20-30        30-40         40-50         Total

Frequency      :          2                4                8                6                20

8 0
2 years ago
A man swims for 30 mins at a speed of 109 m/min. How far does he swim?
Law Incorporation [45]

The distance is meters per minute so you would multiply the distance per minute by total minutes:

109 x 30 = 3.270 total meters.

1 km = 1000 meters

3,270 meter/ 1000 meters per km = 3.27 km

They swam 3.27 km

8 0
2 years ago
A town doubles its size every 30 years. If the population is currently 10,000, what will the population be in 60 years?
Effectus [21]

Answer: 20,000

Step-by-step explanation:

every 30 years 10,000 adds to the population

30 years=10,000 people        

60 years=20,000 people

8 0
3 years ago
Find 3 consecutive integets such that the sum of the first two integers is 24 more than the third. ​
Elina [12.6K]

Answer:

breath

Step-by-step explanation:

4 0
3 years ago
Which equation represents a proportional situation?
lys-0071 [83]
B
Hopes this help you
3 0
3 years ago
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