Answer:
Total number of students = 50 students.
Step-by-step explanation:
Total number of books = number of books * frequency
1 * 3 = 3
2 * 5 = 10
3 * 12 = 36
4 * 25 = 100
5 * 4 = 20
6 * 1 = 6
Total number of books = 3 + 10 + 36 + 100 + 20 + 6
Total number of books = 175 books.
Now, to find the total number of students;
Total number of students = summation of frequency
Total number of students = 3 + 5 + 12 + 25 + 4 + 1
Total number of students = 50 students.
Answer:
The correct option is option D.
Step-by-step explanation:
Any fraction number 
(m>n ) can be written as 
where a = quotient
b= reminder.
Given number is 
.
3)4( 1 ← quotient
- 3
____
1 ← reminder
Here quotient= 1, reminder=1 and n=3
.
Step-by-step explanation:
2x-y=8
x+y=20
------------
3x=28
×=28÷3=9.3
so
9.3+y=20
y=20-9.3
y=20.7
Answer: x = 1 ± i
Step-by-step explanation:
Solving the quadratic equation using the quadratic formula:
x = 
or 
From the question :
a = 1
b = -2
c = 2
substituting inside the formula
X = 
or
x = 
or 
x = 
or 
Recall ; 
can be written as 
X 
, and = i
Substituting this
x = 
or 
simplifying, we have
x = 1 + i or 1 - i
The fraction of text -3/8 of the cover page
From this fraction of text only 2/5 of the text is about endangered species
We are asked to find out what the fraction of the cover page is that covers endangered species
In this 2/5 of 3/8 is about endangered species
Therefore to obtain the answer we need to multiply the two fractions
2/5 * 3/8
Fraction of the cover page about endangered species is therefore = 2/5 * 3/8
= 0.15
