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lidiya
3 months ago
15

Three classes of school children are selling tickets to the school play. the number of tickets sold by these classes, and the nu

mber of children in each of the classes have been read into these variables:tickets1, tickets2, tickets3 and class1, class2, class3. write an expression for the average number of tickets sold per school child. submit
Mathematics
2 answers:
lawyer [12.5K]3 months ago
6 0
Aqe4hjwrs4jyjreajrsjwtj

Inessa [12.5K]3 months ago
5 0

We can determine the average number of tickets sold per student using the formula for average.

Here, let A represent the average tickets sold per child.

Let T denote the total tickets sold.

Let C stand for the overall number of children attending.

Based on the details provided in the question,

T=tickets1+tickets2+tickets3 and C=class1+class2+class3

Thus, A can be represented as:

A=\frac{tickets1+tickets2+tickets3}{class1+class2+class3}

The above formula represents the average number of tickets sold per child.



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3. Terdapat dua bidang saling berpotongan dan tidak berhimpitan maka
Svet_ta [12734]

Kelas: VII (1 SMP)

Materi: Geometri

Kata Kunci: Garis, Sisi, Rusuk, Bidang

Pembahasan:

Suatu titik dalam geometri adalah elemen paling dasar, menunjukkan posisi yang tidak memiliki ukuran (nol panjang, nol lebar, dan nol tinggi) dan dilambangkan dengan huruf kapital.

Garis terdiri dari kumpulan titik yang memanjang tanpa batas di kedua arah.

Ruas garis adalah bagian dari garis yang terdiri dari dua titik ujung dan dinamai menurut kedua titik tersebut.

Sinar garis adalah segmen dari garis dengan hanya satu titik ujung. Dinamai berdasarkan titik ujung dan titik lain di sepanjang sinar tersebut.

Sudut terbentuk dari dua sinar yang memiliki titik ujung yang sama yang dikenal sebagai titik sudut; sinar-sinar tersebut disebut sisi-sisi sudut.

Bidang terdiri dari titik-titik tak terhingga yang membentuk permukaan datar dan meluas tanpa batas. Memiliki panjang dan lebar tak terhingga, tetapi tinggi nol. Bidang biasanya ditunjukkan dengan gambar segi empat dan dinamakan dengan huruf besar.

Rusuk adalah garis hasil pertemuan dua sisi pada bidang.

Dua bidang dapat dikatakan berpotongan jika ada garis potong antara keduanya.

Bidang sejajar apabila tidak ada garis perpotongan yang terbentuk di antara keduanya.

Dua bidang disebut berhimpitan jika semua titik terletak pada keduanya.

Mari kita analisa soal ini.

Apabila dua bidang saling bersilangan dan tidak berhimpit, maka perpotongan mereka akan membentuk garis.

Oleh karena itu, jawabannya adalah B.

Semangat!

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