BeautyxQueen
15.03.2022 •
Mathematics
1. 37.8 x 14 = x 14 - 2.9 x 14
2. The average mass of all the students in the class was 35.1 kg. After 1 student left the class, whose mass is 32.3kg, the average mass of the remaining students became 36.3kg, how many students were there in the class room now?
Pls add explaination
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Ответ:
2
Step by step explanation:
Given: The average mass of all the students in the class was 35.1 kg. After 1 student left the class, whose mass is 32.3kg, the average mass of the remaining students became 36.3kg, how many students were there in the class room now?
Find out: how many students were there in the class room after one student left
Solution: Let the total number of remaining student be= n
Let the total number of remaining student be= nAnd the sum of mass of all the students be = x kg
So,
Make x the subject of formula
And
divide both side by n
N = 2.333
so total number of students remaining is 2
Ответ:
-200 metre is less 450m because - 200 metre is negative.