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3 votes
There are 9 aides in a school and 24 students for every teacher. If there are s students in the school, what is an expression for the total number of teachers and aides? Evaluate the expression for 240 students.

2 Answers

4 votes

Answer:

385

Explanation:

Lets say, first number = x


Second number = 3x+7


Total = 49



(x)+(3x+7)= 49


4x+7 = 49


4x = 42


x = 42/4


x= 10.5



x= 10.5


3x+7 = 3(10.5)+7 = 385



Hope this helps!!

User Dadhi
by
6.5k points
5 votes

Answer:

Required expression :
(s)/(24)+9

Total number of teachers and aides for 240 students is 19.

Explanation:

It is given that there are 9 aides in a school and 24 students for every teacher. It means the number of aides remain constant and number of teachers depend on the number of students.

24 students = 1 Teacher

1 student =
(1)/(24) Teachers

s students =
(s)/(24) Teachers

If there are s students in the school, then the expression for the total number of teachers and aides is


\text{Total number of teachers and aides}=(s)/(24)+9

We need to find the value of this expression for 240 students.

Substitute s=240 in the above expression.


\text{Total number of teachers and aides}=(240)/(24)+9


\text{Total number of teachers and aides}=10+9=19

Therefore, the total number of teachers and aides for 240 students is 19.

User Mark Amery
by
5.9k points
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