Inrimid3619
08.06.2021 •
Mathematics
At a new school there are 2 teachers of every 15 students. If the school has 42 teachers, how Many students are there in the school?
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Ответ:
proportion
Step-by-step explanation:
2> 15
42--->x
x=(42*15)/2
x= 21 *15.
x= 315
therefore there are 315 students in the school
Ответ:
this equality is true
Step-by-step explanation:
when we plug in -8/9 for x and -3/5 for y we get
(-8/9)+(-3/5)=(-3/5)+(-8/9)
(-67/45)=(-67/45)
so this equality is true