Maths-
SAT
Easy
Question
A college mathematics department plans to spend $1,800 buying computers and books. Each computer costs $300 and each book costs $90. Which equation represents this situation, where x is the number of computers and y is the number of books that the department can buy?
- 300x + 90 y = 1,800
- 90x + 300 y = 1,800
- 390(x + y) = 1,800
- 1,800(x + y) = 390
The correct answer is: 300x + 90 y = 1,800
The cost of each computer is $300
The cost of x computers is $300x
The cost of each book is $90
The cost of y books is $90y
The total cost is $300x + $90y = $1800
300x + 90y = 1800
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