15 / 40 = .375
total # total #
of girls of students
.375 = 37.5%
15/40 as a fraction ---> simplify ---> 3/8
Answer: 21
Step-by-step explanation:25%=1/4
1/4*84 =84/4
84/4=21
<span>The number of ways to permute three correct answers among five questions is 5Choose3 which is 5!/(3!*2!) which equals 10.
We must then have the correct answer three times which happens .25 of the time, and two wrong answers 75 of the time.
So the probability is 10*0.25^3*.75^2 which is 0.087890625 or roughly an 8.8% chance.</span>
3x+6 I believe because you can’t add a number with a variable to a number without one
Answer:
<h2>Yeah, all answer is right</h2>
<h2>I HOPE IT IS HELPFUL</h2>
