on a school field trip the school requires that there are 3 teachers for every 75 students if 125 students attend the trip how many teachers are needed write and solve a proportion
75 / 3 = 1/25
1 teacher for 25 students
1/25 = x/125
Cross multiply and solve for x.
To solve this problem, we can set up a proportion.
The given information states that there are 3 teachers for every 75 students. Let's assign variables and set up the proportion.
Let x represent the number of teachers needed.
Let 125 represent the number of students attending the trip.
We can write the proportion as:
3 teachers / 75 students = x teachers / 125 students
To solve the proportion, we can cross-multiply and solve for x.
(3 teachers) * (125 students) = (75 students) * (x teachers)
375 teachers = 75x
To solve for x, divide both sides of the equation by 75:
(375 teachers) / 75 = (75x) / 75
x = 5
Therefore, 5 teachers are needed for 125 students on the school field trip.