anonymous
  • anonymous
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the number of adults. The number of female students was half the number of male students. If the total number of people who went on the trip is 82, find the numbers of male students and female students.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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CoconutJJ
  • CoconutJJ
Let the Number of Adults = X Represent the number of male students in terms of x
CoconutJJ
  • CoconutJJ
@mnc1021
anonymous
  • anonymous
i dont understand @CoconutJJ

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More answers

CoconutJJ
  • CoconutJJ
"number of male students was 1 more than 7 times the number of adults" - How would you write this a expression.
anonymous
  • anonymous
7x+1 ?
CoconutJJ
  • CoconutJJ
GOOD!
CoconutJJ
  • CoconutJJ
"The number of female students was half the number of male students." - Now we have an expression for the number of male students, do the samething for female
anonymous
  • anonymous
is it 7x+1/2 ?
CoconutJJ
  • CoconutJJ
YAY!
CoconutJJ
  • CoconutJJ
"If the total number of people who went on the trip is 82"- We know the number of adults which is X and also have expressions for male and female... so what do we do now ?
anonymous
  • anonymous
this is where i am stuck, do i add them both together and them set it equal to 82? i get stuck here
CoconutJJ
  • CoconutJJ
YAY!
anonymous
  • anonymous
would the equation look like this: 7x+1+7x+1/2=82
CoconutJJ
  • CoconutJJ
Where did the Adults go?
anonymous
  • anonymous
aren't they the x
CoconutJJ
  • CoconutJJ
yes, but they're not aliens... they're human.. better add them to the equation
anonymous
  • anonymous
haahaha i don't know where to put the x though
CoconutJJ
  • CoconutJJ
X+(1+7x)+(1+7x)/2
CoconutJJ
  • CoconutJJ
TA DA!
CoconutJJ
  • CoconutJJ
Can you solve for x given the other side is 82
CoconutJJ
  • CoconutJJ
|dw:1435958089976:dw|
anonymous
  • anonymous
ok lemme try solving that i don't think idid it right, i got 7
CoconutJJ
  • CoconutJJ
lemme check.
CoconutJJ
  • CoconutJJ
YAY!
CoconutJJ
  • CoconutJJ
There are 7 adults, however they ask the number of male and female students. We already have the 2 equations
anonymous
  • anonymous
so i plug 7 into each individual equation?
CoconutJJ
  • CoconutJJ
YES!
anonymous
  • anonymous
ohh ok ok gotcha. thank you so much!!!!!!!
anonymous
  • anonymous
so the number of male students is 50, and female is 25
anonymous
  • anonymous
but that doesn't add up to 82, where did i go wrong here
anonymous
  • anonymous
@CoconutJJ
CoconutJJ
  • CoconutJJ
You're treating adults as aliens again...
anonymous
  • anonymous
what do you mean?
CoconutJJ
  • CoconutJJ
50+25+7 humans
anonymous
  • anonymous
oohhh ok ok thank you!!! ....again ahaha

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