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2.) Eight students in Ms. Reese’s class decided to purchase their textbooks from two different sources. Some students purchased the textbook from the college bookstore for $95.50. The other students purchased the textbook from an online discount store for $65 per book. If the total amount spent by the eight students is $611.50, how many students purchased the book online?

Respuesta :

The number of students that purchased books online is 5

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operations.

Let the number of students that purchased book online be x

Then the number of students that purchased books at the bookstore

⇒  8 - x

Amount spent by students who purchased books online: 65

Amount spent by students who purchased the book at the bookstore:

⇒ 95.50(8 - x),

⇒  764- 95.50x

If the total amount spent by the eight students is $611.50

⇒  65x + 764- 95.50x = 611.50

⇒ 95.50x - 65x = 764 - 611.50

⇒ 30.5x = 152.5

⇒ x = 152.5/30.5

⇒ x = 5

Hence, the number of students that purchased books online is 5.

Learn more about Arithmetic operations here:

brainly.com/question/25834626

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