ruang kelas panjangnya 7 meter dan lebarnya 6 meter luas ruang kelas adalah
Answer (5)
Add all 15 students' amounts: 14(68 inches), then add 65. Take the sum and divide it by 15 students, to get the mean. The answer is 67.8
The student has asked how to find the new mean height of the students in the class after Danielle, who is 65 inches tall, joins. Originally, Mr. Zuro found the mean height of all 14 students to be 68 inches. To recalculate the mean with 15 students, including Danielle, we first need to find the total height of the original 14 students and then add Danielle's height to this total before dividing by the new total number of students, which is 15.
First, calculate the total height of the original 14 students: 68 inches (mean) * 14 students = 952 inches. Then, add Danielle's height: 952 inches + 65 inches = 1017 inches. Finally, divide this new total by 15 to find the mean height of the class: 1017 inches / 15 students = 67.8 inches.
Therefore, after Danielle joins the class, the mean height of the 15 students becomes 67.8 inches.
The mean height of the 15 students in Mr. Zuro's class is calculated to be 67.8 inches. This is determined by adding Danielle's height to the total height of the previous 14 students and then dividing by the total number of students. Therefore, the new mean reflects the combined heights of all students present.
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•°• Luas ruang kelas yang panjangnya m dan m adalah 42 m².[tex] \\ \\ [/tex]Penjelasan dengan langkah-langkah:panjang (p) = 7 meterlebar (l) = 6 meterLuas ruang kelas = ?[tex] \: [/tex]Luas = p × lLuas = 7 m × 6 mLuas = 42 m²[tex] \: [/tex]•°• Jadi, luas ruang kelas tersebut adalah 42 m².[tex]~[/tex][tex]__________________________________________________________________________________________[/tex][tex] \\ \\ [/tex] [tex]\blue{\boxed{\colorbox{skyblue}{\rm{- AvR}}}}[/tex]
DiketahuiPanjang : 7 meterLebar : 6 meterDitanyaLuasDijawabLuas[tex] = p \times l \\ = 7 \times 6 \\ = 42 {cm}^{2} [/tex]KesimpulanMaka jawabannya 42cm2.
