0000:00:00:00:00Start1Number 1ExplanationThe number of students visiting the school library for six consecutive days was 120120120, 123123123, 121121121, 124124124, 122122122, and 125125125 students. If the visitation trend is constant, how many students visit the library on the 7th day?127127127 students126126126 students125125125 students124124124 students123123123 studentsExplanationTo determine the number of students on the 7th day, let's analyze the pattern of library visitors over the six days. Visitor data: 120,123,121,124,122,125120, 123, 121, 124, 122, 125120,123,121,124,122,125. Pattern Analysis Let's observe the difference between each consecutive term: 120→+3123→−2121→+3124→−2122→+3125120 \xrightarrow{+3} 123 \xrightarrow{-2} 121 \xrightarrow{+3} 124 \xrightarrow{-2} 122 \xrightarrow{+3} 125120+3123−2121+3124−2122+3125 The addition pattern repeats alternately: +3,−2,+3,−2,+3+3, -2, +3, -2, +3+3,−2,+3,−2,+3. Based on this pattern, the next step is −2-2−2. Calculation The number of students on the 7th day is: 125−2=123125 - 2 = 123125−2=123 Conclusion Therefore, the number of students visiting the library on the 7th day is estimated to be 123123123 students.
1Number 1ExplanationThe number of students visiting the school library for six consecutive days was 120120120, 123123123, 121121121, 124124124, 122122122, and 125125125 students. If the visitation trend is constant, how many students visit the library on the 7th day?127127127 students126126126 students125125125 students124124124 students123123123 studentsExplanationTo determine the number of students on the 7th day, let's analyze the pattern of library visitors over the six days. Visitor data: 120,123,121,124,122,125120, 123, 121, 124, 122, 125120,123,121,124,122,125. Pattern Analysis Let's observe the difference between each consecutive term: 120→+3123→−2121→+3124→−2122→+3125120 \xrightarrow{+3} 123 \xrightarrow{-2} 121 \xrightarrow{+3} 124 \xrightarrow{-2} 122 \xrightarrow{+3} 125120+3123−2121+3124−2122+3125 The addition pattern repeats alternately: +3,−2,+3,−2,+3+3, -2, +3, -2, +3+3,−2,+3,−2,+3. Based on this pattern, the next step is −2-2−2. Calculation The number of students on the 7th day is: 125−2=123125 - 2 = 123125−2=123 Conclusion Therefore, the number of students visiting the library on the 7th day is estimated to be 123123123 students.
