Last week, Ellen bought 4 apples for $2.40. This week she bought 9 apples for $5.40. If the cost per apple remains the same, how many apples could she buy next week?
O A. 1 apple for $1.20
© B. 6 apples for $3.40
O C. 10 apples for $6.00
O D. 13 apples for $8.20
To find the cost per apple, we divide the total cost by the number of apples.
For the first week, the cost per apple is 2.40/4 = $0.60.
For the second week, the cost per apple is 5.40/9 = $0.60.
Since the cost per apple remains the same, the number of apples Ellen can buy next week can be found by dividing the total cost by the cost per apple.
Next week, she can buy 10 apples for 6.00/0.60 = 10 apples for $6.00.
Therefore, the answer is option C. 10 apples for $6.00.