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Elena is doing a fund-raising mailing for her after-school drama club. She decides to include a brochure in 80% of the letters she mails. if she mails 500 letters, how many will not contain a brochure?
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Elena is doing a fund-raising mailing for her after-school drama club. She decides to include a brochure in 80% of the letters she mails. if she mails 500 letters, how many will not contain a brochure?

User Dhar
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First of all, Elena is kinda dumb why put brochures on only 80%? Nevertheless, 400 letters will not contain a brochure. If you need an explanation just comment that you need one on this.
User Jill Clover
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