Question

jane graded an assignment from all the students in one class. she graded a total of 324 problems. find janes daily gross earnings.
1-100 problems $0.03 each
101-200 problems $0.09 each
over 200 problems $0.12 each
janes gross earnings are $\square
(round to the nearest cent as needed.)

Explanation:

Step1: Calculate earnings for 1 - 100 problems

Earnings for first 100 problems: $100\times0.03 = 3$

Step2: Calculate earnings for 101 - 200 problems

Number of problems in this range: $200 - 100 = 100$
Earnings: $100\times0.09 = 9$

Step3: Calculate earnings for over 200 problems

Number of problems over 200: $324 - 200 = 124$
Earnings: $124\times0.12 = 14.88$

Step4: Total gross earnings

Sum all earnings: $3 + 9 + 14.88 = 26.88$

Answer:

26.88