Answer:
4
Step-by-step explanation:
There are 30 students in class
<em><u>Solution:</u></em>
Let "x" be the total number of students in class
Given that,
The number of boys represents 54% of the class
Therefore,
Number of boys = 54 % of total number of students
Number of boys = 54 % of x
Given that, There are 14 girls in a class
Therefore,
Number of girls = 14
Thus we get,
Number of boys + number of girls = total number of students
0.54x + 14 =x
x - 0.54x = 14
0.46x = 14
Divide both sides by 0.46
Thus there are 30 students in class
The a value in the expression is 5x^2
Step-by-step explanation:
a) 2x(3x + 1)(4 - 2x) = 0
=> 2x = 0 (or) 3x + 1 = 0 (or) 4 - 2x = 0
=> x = 0 (or) x = -1/3 (or) x = 2
b) x²(2x + 1)(x - 3) = 0
=> x²=0 (or) 2x + 1=0 (or) x - 3=0
=> x = 0 (or) x = -1/2 (or) x = 3
Hope you've understood the solutions.
Answer: c
Step-by-step explanation: