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.
Pls help me i don't know how to solve it
3 for 75 is one for every 25
so
125 students (1 teacher/25 students) = 5 teachers
or just skip the thinking and write
125 students (3 teachers/75 students) = 5 teachers
The point is write it so students cancel top and bottom and you are left with teachers
is he right?
Of course, he's right. He's one of our math and science tutors here.
To solve this proportion problem, you can set up a proportion that relates the number of teachers to the number of students.
Let's call the number of teachers needed "x". According to the given condition, there are 3 teachers for every 75 students. So, we can set up the following proportion:
3 teachers / 75 students = x teachers / 125 students
To solve this proportion, you can cross-multiply:
3 * 125 = 75 * x
375 = 75 * x
Divide both sides of the equation by 75 to isolate the "x" variable:
375 / 75 = x
5 = x
Therefore, you would need 5 teachers for 125 students on the school field trip.