sophiav9627
05.06.2020 •
Mathematics
At my friend’s middle school the ratio of teachers to students is 1:9. If there are 45 teachers at the school, how many students are there? Show your work or explain how you determine your answer. Write a literal/explicit equation to model the situation above. Where Y is the number of students and X the number of teachers at the school
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Ответ:
405 students
Step-by-step explanation:
1=teachers
9=students
1=45 teachers
9=y students
y=9 x 45
y=405 students
Ответ:
-7
Step-by-step explanation:
The common difference of an Arithmetic progression is the difference between any two consecutive terms.i.e. for sequence
Common difference =
The given sequence : 56, 49, 42, 35, ...
Then , Common difference =
Hence, the common difference for the given sequence. =-7