Answer:
Step-by-step explanation:
Keep in mind that to find the average they would do:
Average = Sum of students' ages / number of students
So to solve this question we should firstly find the sum of all their ages.
To do this you multiply 5 by 9 = 45.
This means 45 is the sum of all 5 students' ages.
Next you are given four students have ages 5 , 7 , 8 and 15.
The sum of their ages are: 5 + 7 + 8 + 15 = 35
This means that the final student has age 45 - 35 = 10 years.
So the remaining 21.7% is the sucsess rate. 100%-21.7%=78.3% 13=78.3% of x so just solve the algebra 13=.783x basically just divide 13 by .783... ez<span />
There are multiple possible answers to this, some of which are:
1 * 250 = 250
2 * 125 = 250
5 * 50 = 250
10 * 25 = 250
Hope that helped =)
Answer:
WHAT IT'S 19??? HELP HAHAHAHAHA
Step-by-step explanation:
deez njuts
