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Ben bought 8 notebooks for $24.50. Some of the notebooks were $2.50 each, and the others were $3.25 each. If X represents the number of least expensive notebooks, which equation can be used to find the number of least expensive notebooks purchased?
- A $5.75(8 − x) = $24.50
- B $2.50(x − 8) + $3.25x = $24.50
- C $2.50x + $3.25(8 − x) = $24.50
- D $2.50x + $3.25(x − 8) = $24.50
That's Correct!
It's Wrong!
The equation represents the total cost of the notebooks, where x is the number of least expensive notebooks ($2.50 each) and (8-x) is the number of more expensive notebooks ($3.25 each). The total cost of the least expensive notebooks is $2.50x, and the total cost of the more expensive notebooks is $3.25(8-x). The sum of these two costs equals the total cost of $24.50.
