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there were 107 students and chaperones on a field trip. if the number of students was 13 less than 7 times the number of chaperones, how many students were there?

Guest Feb 28, 2017
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There were 107 students and chaperones on a field trip. if the number of students was 13 less than 7 times the number of chaperones, how many students were there?

 

Let the number of chaperones  = x.....then......the number of students  = 7x -13

 

So..the number of chaperones plus the number of students  = 107  ....or....

 

x + 7x - 13   = 107  add 13 to both sides

 

8x  = 120       divide both sides by 8

 

x = 15 = the number of chaperones ....so......the number of students must have been  107 - 15  =  92

 

 

cool cool cool

CPhill  Feb 28, 2017

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