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Complete the table and answer the following questions about books read by students.

Mathematics

ScanSolve AI Answer

Answer

60

Step-by-step solution

6 steps
  1. Find books Ben read on Tuesday.

    Tuesday total = John Tuesday + Anna Tuesday + Ben Tuesday

    18=4+5+Ben Tuesday18 = 4 + 5 + \text{Ben Tuesday}

    Ben Tuesday=18−4−5=9\text{Ben Tuesday} = 18 - 4 - 5 = 9 books

  2. Find books Anna read on Wednesday.

    Wednesday total = John Wednesday + Anna Wednesday + Ben Wednesday

    13=7+Anna Wednesday+213 = 7 + \text{Anna Wednesday} + 2

    Anna Wednesday=13−7−2=4\text{Anna Wednesday} = 13 - 7 - 2 = 4 books

  3. Note on Monday.

    Monday total = John Monday + Anna Monday + Ben Monday

    15=John Monday+Anna Monday+315 = \text{John Monday} + \text{Anna Monday} + 3

    John Monday+Anna Monday=12\text{John Monday} + \text{Anna Monday} = 12 books
    (Individual values cannot be found uniquely.)

  4. Note on Thursday.

    Thursday total = John Thursday + Anna Thursday + Ben Thursday = 14 books
    (Individual values cannot be found uniquely.)

  5. Completed table (filled values shown; undetermined cells noted).

    \begin{array}{c|c|c|c|c|c} \text{Student} & \text{Monday} & \text{Tuesday} & \text{Wednesday} & \text{Thursday} & \text{Total} \\ \hline \text{John} & ? & 4 & 7 & ? & ? \\ \text{Anna} & ? & 5 & 4 & ? & ? \\ \text{Ben} & 3 & 9 & 2 & ? & ? \\ \hline \text{Total} & 15 & 18 & 13 & 14 & ? \\ \end{array} $$ books
  6. Find total books read (sum of daily totals).

    Total books read = Monday total + Tuesday total + Wednesday total + Thursday total

    15+18+13+14=3315 + 18 + 13 + 14 = 33 33+13=4633 + 13 = 46

    46+14=6046 + 14 = 60 books

    60

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