absharahmed789 absharahmed789

09-04-2020
Mathematics

contestada

the average marks of the first 10 students are 17 and that of the next 15 students is 18. find the mean of 25 students?

Respuesta :

marinavarfolo marinavarfolo

11-04-2020

Answer:

20

_____

10 = 17

15 = 18

20 = 19

25 = 20

Answer Link

Otras preguntas

whats 5,890 round to the nearest thousand

What year did Hitler become Chancellor and what year did Hitler become Dictator?

How can you tell isotopes of the same element apart?

How do I solve x^2 - 8x + 16 = 25 using perfect factoring patterns?

how many bricks 3.75 in. Wide × 8 in. Long are required to cover a patio 13 ft. 6 in. Wide by 18 ft 9 in. Long ? Step 1. First, find the total width & lengt

Long division of 764 divided by 7, must show work

what did moses impact?

what does sound travel through to reach our ears?

What is the value of x squared =169

true or false Arabs occupied Palestine when some Jewish people returned to it in 1900.