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allysoftball4878
13.11.2019 •
Mathematics
On a school field trip, the school requires that there are 6 teachers for every 90 students. if 135 students attend the trip how many teachers are needed? write and solve a proportion showing your work. (3 points)
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Ответ:
the answer is 9 teachers
Step-by-step explanation:
step one is 135-90=?
step two is if 1 teachers for 15 students
2 techers are for 30 students until you get to 135
Ответ:
9 teachers.
Step-by-step explanation:
We can visualize the information given as follows:
Students teachers
90 ⇒ 6
135 ⇒ x
Which tells us that for 90 students 6 teachers are needed, and for 135 students we have the unknown quantity of teachers x.
To find x we multiply the two cross quantities, and divide by the remaining amount
x = (135)(6) ÷ 90
x = 810 ÷ 90
x = 9
9 teachers are needed for 135 students.
Ответ:
91 degrees
Step-by-step explanation: