Answer:
There are 24 girls on the field trip.
Step-by-step explanation:
1. Organizing the Information
This is a percentage problem. There isn't too much information to take in here, but having the numbers laid out concisely will make things much easier.
Boys = 36
Girls = x
36 = 60%
x = 40%
2. Creating the Equation
Using this information, create an equation to find the total amount of students.
In this case, create an equation to find 10% of the total.
60% will be converted into 6y.
y will represent 10% of the total.
The finished equation is:
36 = 6y
3. Solving the Equation
Using the order of operations, solve the equation.
36 = 6y
36/6 = y
6 = y
y was meant to represent 10% of the total.
Taking into account that y = 6, multiply 6 by 10 to calculate the total.
The total is 60.
4. Solving for x
If the total is 60, it should be much easier to solve for x now.
As said previously, x is equal to 40% of the total.
To solve for x, convert 40% into a decimal. The decimal should be 0.4, or 40% of 1.
Multiply 60 by 0.4 to find 40% of 60.
The answer is 24.
24 girls are on the field trip.
