-5b
is the the answer
- b - 4b = - 5b
Answer:
The number of ways in which students were chosen is 45 ways .
Step-by-step explanation:
Given as :
The number of students in a class = x = 10
The number of students chosen by teacher to go to library = y = 2
Let The number of ways in which students were chosen = n ways
<u>Now, According to question</u>
So, number of ways in which students were chosen = 
Or, n ways = 
Or, n = 
Or, n = 
Or, n = 
Or, n = 
Or, n = 5 × 9
i.e n = 45
So, The number of ways in which students were chosen = n = 45 ways
Hence,The number of ways in which students were chosen is 45 ways . Answer
A fraction and a percentages are equivalent.
30 out of 60
= 30/60
= 3/6
= 1/2
but especially:
= 50/100
which means:
50 out of 100
or
= 50%
Answer:
A. 6.75
Step-by-step explanation:
8x+18=4x+57
8x-4x=57-18
4x=39
4x+57=180-(8y+30)
39+57=180-8y-30
96=150-8y
8y=150-96
= 54
y= 54/8 = 6.75