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7th grade (Illustrative Mathematics)

Course: 7th grade (Illustrative Mathematics) > Unit 5

Lesson 14: Lesson 14: Solving problems with rational numbers
Math
7th grade (Illustrative Mathematics)
Unit 5: Rational number arithmetic
Lesson 14: Solving problems with rational numbers
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Rational number word problems

CCSS.Math: 7.EE.B.3
Google Classroom

Problem

Adriano runs a website that helps writers write better stories. Every month, Adriano receives a subscription fee of dollar sign, 5 from each of the subscribers to his website. The website had 200 subscribers last month. This month 40 new members joined the website and 10 members cancelled their subscription.
How much money will Adriano’s online business earn this month?
dollar sign
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
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