anonymous
  • anonymous
A social networking site recorded that 80% of the people who became members of the site one month were between 30 and 40 years old. The equation below represents this information, where x represents the total number of people who became members of the site that month. x = 0.8x + 72 How many people who became members of the site that month were between 30 and 40 years of age?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
was that equation given to you. it seems wrong.
anonymous
  • anonymous
Thats what the question said
anonymous
  • anonymous
where did 72 come from? The people between 30 and 40 would be .80 times the total.

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More answers

anonymous
  • anonymous
i have no idea..
anonymous
  • anonymous
i just need help
anonymous
  • anonymous
ok. Let's solve the equation for x. So we are solving for the total of people who joined.
anonymous
  • anonymous
okay, i am so confused haha
anonymous
  • anonymous
x = 0.8x + 72 x - .8x = .8x + 72 - .8x .2x = 72 Divide both sides by .2 x = 360 Now that we know the total we can multiply this by 80% of .8 to get ppl between 30-40
anonymous
  • anonymous
thank you so much!(;
anonymous
  • anonymous
yw

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