1. Twice a number is equal to six more than the number.
1. 1. Twice a number is equal to six more than the number.
Jawaban:
6
Penjelasan dengan langkah-langkah:
lets the number is x
2x = x + 6
2x - x = 6
x = 6
so, the number is 6
2. the sum of three number is 68. the largest number is 6 less than twice the smallest , and the middle number is 10 less than the largest . find the tree numbers!
eg: smallest = x
middle = y
largest = z
z = 2x-6
y = z-10
x+y+z = 68
x+z-10+2x-6 = 68
x+2x-6-10+2x-6 = 68
5x-22 = 68
5x = 68+22
5x = 90
x = 90:5
x = 18
z = 2x-6
z = 2.18-6
z = 30
y = z-10
y = 30-10
y = 20
The smallest is 18
The middle is 20
The largest is 30
3. Known, A = {2, 3, 5, 7, 11}. The possible universal set of set A is. . . .{ natural number less than 12}. { odd number less than 12 }. { whole number between 2 and 11} { prime number less than 12}.
Jawab:
Prime number less than 12
Jawaban:
{ prime number less than 12}.
Penjelasan dengan langkah-langkah:
himpunan dalam ilmu matematika adalah kumpulan objek yang memiliki sifat yang dapat didefinisikan dengan jelas
4. find a number greater than 1/8 but less than 1/7 is
Jawab:
Trivial solution , 0.13 = 13/100
Penjelasan dengan langkah-langkah:
1/8 = 0.125
1/7 = 0.142857... ≈ 0.14
Therefore, let take 0.13 because that number is between 1/8 and 1/7.
0.13 = 13/100
Disclaimer : The are infinitely many solutions to this question..I am taking the easiest one(trivial solution).
5. A negative number is … than zero. a. small b. less c. little d. smaller
B. Less (kurang)
Semoga membantu :)
6. find a number greater than 0,3 but less than 1/2
1/2=0,5
0,3;N;0,5
N=0,4
7. the biggest composite number less than 200
the biggest composite number less than 200
ans : 198
8. Known, A = {2, 3, 5, 7, 11}. The possible universal set of set A is. . . . A. { natural number less than 12}. B. { odd number less than 12 }. C. { whole number between 2 and 11}D. { prime number less than 12}.
Jawaban:
D
Penjelasan:
Terjemahan :
Diketahui, A = {2,3,5,7,11}. himpunan semesta yang mungkin dari A adalah ...
A. {Bilangan asli kurang dari 12}
B. {Bilangan ganjil kurang dari 12}
C. {Semua bilangan antara 2 dan 11}
D. {Bilangan prima kurang dari 12}
Sehingga jawaban yang tepat adalahD
9. What number is 2/3 less than 1 1/2 ?Pljrn mtk kls 7
Jawab:
[tex]\frac{5}{6}[/tex]
Penjelasan dengan langkah-langkah:
[tex] 1\frac{1}{2}-\frac{2}{3}= \\\\\frac{3}{2}-\frac{2}{3}= \\\\\frac{9}{6}-\frac{4}{6}= \\\\\frac{5}{6} [/tex]
10. 22. We need flannel . . . to make rose ring for twice. A. Less than 10x10cm B. Only 10x10cm C. About 10x10cm D. More than 10x10cm
D. More than 10x10cmD.More than 10×10 cm
(lebih dari 10×10cm)
11. Write the odd square number that are more than 30 and less than 90
Jawaban:
7 pangkat 2 dan 9 pangkat 2
Penjelasan dengan langkah-langkah:
7^2 dan 9^2
12. Sixty more than nine times a number is the same as two less than ten times the number. What is the number?
Sixty more than nine times a number --> 9a + 60
two less than ten times the number --> 10a - 2
9a + 60 = 10a - 2
60 + 2 = 10a - 9a
62 = a
a = 62
13. lionel is thinking of two numbers. the sum of twice the larger number and 4 times the smaller number is 40. twice the smaller number is 4 more than the larger number. find the larger number.
[tex]2l + 4s = 40 \\ 2s = l + 4 \\ 2l + 2s + 2s = 40 \\ 2l + l + 4 + l + 4 = 40 \\ 4l + 8 = 40 \\ 4l = 40 - 8 \\ 4l = 32 \\ l = \frac{32}{4} \\ l = 8 [/tex]
14. From the following set, the empty set is..A. set of counting numbers less than 5B. set of prime numbers less than 2C. set of even integers numbers less than oneD. set of even number that divisible by two
Jawaban:
Artinya:
Dari himpunan berikut, himpunan kosong adalah ..
A. set menghitung angka kurang dari 5
B.Himpunan bilangan prima kurang dari 2
C. set bilangan bulat genap kurang dari satu
D. set bilangan genap yang dapat dibagi
Jawabannya: gak tau15. A negative number is … (little) than zero. A) Less B) More little C) Lesser D) Most little
jawabannya adalah less atau kurang dari
semoga membantu
Saya jawabannya yg b..karena Lotte jika dibaca ada 2 suku kata sehingga memakai more utk 2 perbandingan
16. Four more than three times a number, is less than 30. Which of the following is not a solution? 6 8 12 7
Jawab:
8 Maybe??
Penjelasan dengan langkah-langkah:
Sorry if I mistaken
Thank You ^^ If my answer has a problem, you can comment in the comment box
17. how many prime number are less than 20
2,3,5,7,11,13,17,19
there are eight prime number less than 2023,29,31,37,41,43,47,53
18. find a number greater than 1/5 but less than 1/4
1/5 = 8/40
1/4 = 10/40
8/40<x<10/40
x (a number that greater than 1/5 but less than 1/4) = 9/40dgn menggunakan KPK, samakan penyebut kedua pecahan:
4/20, 5/20
masih belum ketemu, kalikan 2/2
8/40, 10/40
bilangan tersebut adalah 9/40
19. A negative number is … than zero. A) small B) less C) little D) smaller
D) smaller; maaf kalo salahB) Less
Kalau untuk 'angka ... lebih kecil dari ...' biasanya menggunakan 'less'
Sebaliknya, 'angka ... lebih besar dari ...' biadanya menggunakan 'greater'
20. find a number greater than 1/8 but less than 1/7 istolong bantuannya
Jawaban:
Penjelasan:
Semoga membantu
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