penyelesaian dari (3x-x)² ≥7(3-x)-10 adalaha. x≤-1 atau 2≤x≤5 atau x≥8b. x≤1 atau 2≤x≤5 atau x≥8c. x≤1 atau -2≤x≤5 atau x≥8d. x≤-2 atau -1≤x≤5 atau x≥8e. x≤-2 atau 1≤x≤5 atau x≥8
1. penyelesaian dari (3x-x)² ≥7(3-x)-10 adalaha. x≤-1 atau 2≤x≤5 atau x≥8b. x≤1 atau 2≤x≤5 atau x≥8c. x≤1 atau -2≤x≤5 atau x≥8d. x≤-2 atau -1≤x≤5 atau x≥8e. x≤-2 atau 1≤x≤5 atau x≥8
Jawaban:
b. x<1 atau 2<x<5 atau x>8
Penjelasan dengan langkah-langkah:
#tandaterimakasih #bintangsempurna #follow
2. apabila 2^x di × 8^1/5 = 2^1/5, maka x sama dengan....
[tex] {2}^{x} \times {2}^{3 \times \frac{1}{5} } = {2}^{ \frac{1}{5} } \\ {2}^{x + \frac{3}{5} } = {2}^{ \frac{1}{5} } \\ \\ x = \frac{1}{5} - \frac{3}{5} \\ x = - \frac{2}{5} [/tex]
3. 1 hasil dari 5/8 x 1 1/52 hasil dari 2 5/8 x 2 2/7
a.¾
b.4 51/56
Penjelasan dengan langkah-langkah:
1.5/8 x 1 1/5
=¾
b.2 5/8 x 2 2/7
=4 51/56
a.Jadihasildari5/8 x 1 1/5adalah¾
b.jadihasildari2 5/8 x 2 2/7adalah4 51/56
Jawaban1) 3/42) 6Penyelesaian[tex]1)~\frac{5}{8}\times1\frac{1}{5}[/tex]
[tex]=\frac{5}{8}\times\frac{6}{5}[/tex]
[tex]=\frac{6}{8}[/tex]
[tex]=\boxed{\boxed{\tt{\frac{3}{4}}}}[/tex]
[tex]2)~2\frac{5}{8}\times2\frac{2}{7}[/tex]
[tex]=\frac{21}{8}\times\frac{16}{7}[/tex]
[tex]=\frac{336}{56}[/tex]
[tex]=\boxed{\boxed{\tt{6}}}[/tex]
♪
♪
♪
Detail JawabanMapel : Matematika
Kelas : 6
Bab : 6 - Pengerjaan Hitung Bilangan Pecahan
Kode Soal : 2
Kode Kategorisasi : 6.2.6
— Eԃαყʅʅҽ
4. perkalian pecahan campuran dengan campuran1. 2 4/5 x 1 1/2 =2. 1 2/5 x 1 1/14 =3. 2 1/4 x 1 1/8 =4. 2 2/9 x 1 2/3 =5. 4 5/8 x 2 1/4 =6. 3 1/3 x 2 1/9 =7. 4 2/3 x 2 2/5 =8. 2 3/5 x 1 5/8 =9. 2 3/5 x 1 5/8 =10. 4 5/6 x 1 1/2 =
Jawaban:
51768726837271927372933
5. Tolong bantu ka.. 1. 4 1/2 x 2 2/5 =2. 3 2/12 x 1 8/21 =3. 4 5/8 X 2 24/25 =4. 2 1/2 X 8 4/6 =5. 6 3/5 x 1 4/8 =
1. 4
10 —
5
2. 47
4 ——
126
3. 69
13 ——
100
4. 2
21 —
3
5. 9
9 ——
10
Maaf kalo salah
6. tentukan himpunan penyelesaian dari: 1.3(x+5)-2(x+8) = 4(x-2) 2.7(x-7)-8(x-2) = 1/2 (x+5) 3.1/5 (x-3)= 1/4 (2x+8) 4.2(x-7) = 1/4 (2x+8) 5.|x+5| = 5 tolong jawabin..segera..
1. 3x+15-2x-16=4x-8
x-1=4x-8
x-4x=-8+1
-4x=-7
x=7/4
5. x=0 atau x =10
;)
7. 1. X+1/2 + x/3 = 82. x-2/3 + 2x-1/5 = 5
Jawaban:
no 1
X+1/2 + x/3 = 8
3x/3+x/3=16/2-1/2
4x/3=15/2
x=15/2×3/4
x=45/6
no 2
x-2/3 + 2x-1/5 = 5
x+2x-2/3-1/2=5
3x-2(2)/3(2)-1(3)/2(3)=5
3x-4/6-3/6=5
3x-7/6=5
3x=5+7/6
3x=5(6)/6+7/6
3x=30/6+7/6
3x=37/6
x=37/6×3
x=37/18
8. 1. 5/6 x 1/5 =2. 5/7 x 1/4 =3. 3/5 x 1/7 =4. 5/8 x 1/8 =5. 7/9 x 3/5 = 6. 4/7 x 2/5 =7. 8/9 x 7/8 =
Jawaban:
Jawaban jelas di foto yaa
Semoga membantuu
9. mohon bantuan nya kakak, untuk di kumpulkan besok 1. 2 4/5 x 1 1/2 =2. 1 2/5 x 1 1/14 =3. 2 1/4 x 1 1/8 =4. 2 2/9 x 1 2/5 =5. 4 5/8 x 2 1/4 =6. 3 1/3 x 2 1/9 =7. 4 2/3 x 2 2/3 =8. 2 1/4 x 1 5/8 =9. 2 3/5 x 1 5/8 =10. 4 5/6 x 1 1/2 =
Jawaban:
jawaban sudah terlampir ya( beserta cara kok )
Penjelasan dengan langkah-langkah:
♤SEMOGA MEMBANTU♤
♡NO COPY♡
◇ SEMANGAT TERUS BELAJAR DARING◇
♧SEKIAN♧
☆ kalau jawabannya benar jadikan jawaban tercerdas ya ><✔️
10. maaf mau minta tolong yang bisa bantu jawab ya, untuk dikumpulkan besok (beserta dengan caranya)1. 2 4/5 x 1 1/2 =2. 1 2/5 x 1 1/14 =3. 2 1/4 x 1 1/8 =4. 2 2/9 x 1 2/5 =5. 4 5/8 x 2 1/4 =6. 3 1/3 x 2 1/9 =7. 4 2/3 x 2 2/3 =8. 2 1/4 x 1 5/8 =9. 2 3/5 x 1 5/8 =10. 4 5/6 x 1 1/2 =
Jawaban:
jawaban beserta cara ada di atas ya
Penjelasan dengan langkah-langkah:
♤SEMOGA MEMBANTU♤
♡NO COPY♡
◇ SEMANGAT TERUS BELAJAR DARING◇
♧SEKIAN♧
☆ kalau jawabannya benar jadikan jawaban tercerdas ya ><✔️
11. 1. 2 2/3 x 1/6 = 2. 2 4/5 x 1/8 = 3. 1 2/7 x 2/5 = 4. 1 2/7 x 2/3 = 5. 1 7/8 x 2/5 = 6. 2/3 x 1 5/9 = 7. 2/5 x 1 3/7 = 8. 3/4 x 2 3/10 = 9. 4/5 x 1 7/8 = 10. 5/8 c 1 3/4 =
Jawaban:
semoga membantu Ya ,Kalau Ada yg masih Bisa disederhanakan blh disederhanakan
Penjelasan dengan langkah-langkah:
1. 2 2/3 x 1/6 = 12/3 x 1/6 = 12/18 : 2/2 = 6/9 : 3/3 = 2/3
2.2 4/5 x 1/8 = 14/5 x 1/8 = 14/40 : 2/2 = 7/20
3.1 2/7 x 2x5 = 9/7 x 2/5 = 18/35
4.1 2/7 x 2/3 = 9/7 x 2/3 = 18/21 : 3/3 = 6/7
5.1 7/8 x 2/5 = 15/8 x 2/5 = 30/40 : 10/10 = 3/4
6.2/3 x 1 5/9 = 2/3 x 14/9 = 28/27 = 1 1/27
7.2/5 x 1 3/7 = 2/5 x 10/7 = 20/35 :5/5 = 4/7
8.3/4 x 2 3/10 = 3/4 x 23/10 = 69/40 = 1 29/40
9.4/5 x 1 7/8 = 4/5 x 15/8 = 60/40 : 20/20 = 3/2 = 1 1/2
10.5/8 x 1 3/4 = 5/8 x 7/4 =35/24 = 1 11/24
12. 1. 7/8 x (-2/13)=2. (-2/3) x 3/8=3. 9/5 x (-5/8)=4. 2 3/8 x (-3 2/3)=5.(-1 3/5) x 5 4/5=
1).0 2)2.0 3)1.125 4) 30.6 5) 0.0 maaf kalo salah
13. Tentukan hasil dari: a. 5/3 x 1/4 x 2/5 = b. (1 2/8 : 5/8) x 2/3 =
a. 5/3 × 1/4 × 2/5 = 10/60
= 1/6
b. (1 2/8 : 5/8) × 2/3 = (10/8 × 8/5) × 2/3
= 10/5 × 2/3
= 2 × 2/3
= 4/3
jawaban soal A
[tex]$\begin{align} \frac{5}{3} \times \frac{1}{4} \times \frac{2}{5} &= \frac{1}{3} \times \frac{1}{2} &= \frac{1}{6} \end{align}[/tex]
jawaban soal B
[tex]$\begin{align} (1 \frac{2}{8} : \frac{5}{8} ) \times \frac{2}{3} &= ( \frac{10}{8} : \frac{5}{8} ) \times\frac{2}{3} \\ \\ &= \frac{10}{8} \times \frac{8}{5} \times \frac{2}{3} \\ \\ &= \frac{20}{15} \\ \\&= 1 \frac{5}{15}\\ \\&= 1 \frac{1}{3} \end{align}[/tex]
14. 7/8 x 2 1/51. 7/8 * 2 * 1/5
Penjelasan dengan langkah-langkah:
[tex]1. \frac{7}{8} \times 2 \frac{1}{5} = ..[/tex]
[tex] = \frac{7}{8} \times \frac{11}{5} [/tex]
[tex] = \frac{7 \times 11}{8 \times 5} [/tex]
[tex] = \frac{77}{40} [/tex]
[tex] = \frac{137}{40} [/tex]
[tex]2. \: 62.5 \div 0.05 = ..[/tex]
[tex] = \frac{125}{2} \div \frac{1}{20} [/tex]
[tex] = \frac{125 \times 20}{2 \times 1} [/tex]
[tex] = \frac{2500}{2} \\ \\ = \frac{1250 \times 2}{1 \times 2} \\ \\ = \frac{1250}{1} [/tex]
[tex]3.5 \frac{1}{2} + 1 \frac{3}{4} - 2 \frac{5}{6} = [/tex]
[tex] = \frac{87}{12} - \frac{34}{12} \\ \\ = \frac{(87 - 34)}{12} \\ \\ = 4 \frac{5}{12} [/tex]
[tex]4. \frac{3}{4} \times 1 \frac{2}{3} \times \times \frac{4}{8} = [/tex]
[tex] = \frac{5}{4} \times \frac{1}{2} \\ \\ = \frac{5 \times 1}{4 \times 2} \\ \\ = \frac{5}{8} [/tex]
[tex]5. 3\frac{1}{3} \div 2 \frac{3}{8} = \\ \\ = \frac{80}{57} \\ \\ = \frac{1 \times 57 + 23}{57} \\ \\ = 1 \frac{23}{57} [/tex]
[tex] \sf{ \red{f}{ \blue{y}{ \pink{a}}}}[/tex]
15. 11. Apabila 2^x . 8(1/5) = 2(1/5) maka x sama dengan ....
Jawaban:
[tex]log_{2}( \frac{11}{41} ) [/tex]
Penjelasan dengan langkah-langkah:
[tex] {2}^{x} \times 8 \frac{1}{5} = 2 \frac{1}{5} \\ {2}^{x} \times \frac{41}{5} = \frac{11}{5} \\ {2}^{x} \times 41 = 11 \\ {2}^{x} = \frac{11}{41} \\ x = log_{2}( \frac{11}{41} ) [/tex]
Nilai x dari [tex]\sf {2}^{x} \: . \: {8}^{ \frac{1}{5} } = {2}^{ \frac{1}{5} } [/tex] adalah [tex]\huge \red {\sf x = - \frac{2}{5} } [/tex]
_________________Pendahuluan: Bilangan berpangkat (eksponen)Bilangan berpangkat merupakan bilangan hasil dari perkalian berulang yang memiliki bilangan sama.[tex] \: [/tex]
Sifat-Sifat Pada Bilangan Berpangkat :
[tex] \sf a^m \times a^n = a^{(m+n)} [/tex][tex] \sf a^m \div a^n = a^{(m-n)} [/tex][tex]\sf (a^m)^n = a^{m\times n} [/tex][tex] \sf (ab)^n =a^nb^n [/tex][tex] \sf (\frac{a}{b})^n = \frac{a^n}{b^n} [/tex][tex] \sf a^{-n} = \frac{1}{a^n} [/tex][tex] \sf \sqrt[n]{ {a}^{m} } = {a}^{ \frac{m}{n} } [/tex][tex] \sf a^0 = 1 [/tex][tex] \: [/tex]
Pembahasan:Diketahui : [tex]\sf {2}^{x} \: . \: {8}^{ \frac{1}{5} } = {2}^{ \frac{1}{5} } [/tex][tex] \: [/tex]
Ditanya : nilai x ?[tex] \: [/tex]
Dijawab :[tex] \sf \: \: \: \: \: \: {2}^{x} \: . \: {8}^{ \frac{1}{5} } = {2}^{ \frac{1}{5} } \\ \sf {2}^{x} \: . \: {( {2}^{3}) }^{ \frac{1}{5} } = {2}^{ \frac{1}{5} } \\ \sf \: \: \: \: \: {2}^{x} \: . \: {2}^{ \frac{3}{5} } = {2}^{ \frac{1}{5} } \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: {2}^{x} = \frac{ {2}^{ \frac{1}{5} } }{ {2}^{ \frac{3}{5} } } \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {2}^{x} = {2}^{( \frac{1}{5} - \frac{3}{5} )} \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: {2}^{x} = {2}^{ - \frac{2}{5} } \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: { \cancel2}^{x} = {\cancel2}^{ - \frac{2}{5} } \\ \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = - \frac{2}{5} [/tex]
[tex] \: [/tex]
Kesimpulan:Jadi, nilai x dari [tex]\sf {2}^{x} \: . \: {8}^{ \frac{1}{5} } = {2}^{ \frac{1}{5} } [/tex] adalah [tex] \red {\sf x = - \frac{2}{5} } [/tex]
[tex] \: [/tex]
===================Pelajari lebih lanjut:brainly.co.id/tugas/16339101brainly.co.id/tugas/23266017brainly.co.id/tugas/23200792[tex] \: [/tex]
Detail Jawaban:Kelas : 9 SMPMapel : MatematikaMateri : Bab 1 - Bilangan BerpangkatKode kategorisasi : 9.2.1[tex] \: [/tex]
Kata Kunci : Perpangkatan, nilai x, persamaan eksponen.
16. 1. 3/ 5 x 8 =2. 2/5 x 6 =3. 1/5 x 5 =4. 1/8 x 12 =5. 1/6 x 16 =
1. 3/5x8= 4,5
2. 2/5x6= 2,4
3. 1/5x5= 1
4. 1/8x12=1,5
5. 1/6x16=2,66
17. 3/5 x 2 1/61 1/4 x 3 1/56/7 x 5/87 7/8 x 1 5/74 1/5 x 6 3/72/3 x 3 3/8 x 5/97 7/9 x 9 3/5 x 3 3/45/8 x 6 2/9 x 9 1/73 4/7 x 5 5/6 x 8 2/52 2/7 x 3/8 + 1 3/43 3/4 x 7/10 - 1 1/64 1/2 + 1 3/7 x 2 2/59 1/3 - 4 1/6 x 2 1/10
3/5 x 2 1/6
= 3/5 x 13/6
= 39/30 = 13/10
1 1/4 x 3 1/5
=5/4 x 16/5
=80/20= 20/5
=4/1= 4
6/7 x 5/8
=30/56 = 15/28
7 7/8 x 1 5/7
=63/8 x 12/7
756/56
4 1/5 x 6 3/7
= 1/5 x 45/7
=45/35
1).
[tex] \frac{3}{5} \times 2 \frac{1}{6} = \\ \frac{3}{5} \times \frac{13}{6} = \\ \frac{3 \times 13}{5 \times 6} = \\ \frac{39}{30} =1 \frac{9}{30} = 1 \frac{3}{10} [/tex]
2).
[tex]1 \frac{1}{4} \times 3 \frac{1}{5} = \\ \frac{5}{4} \times \frac{16}{5} = \\ \frac{5 \times 16}{4 \times 5} = \\ \frac{80}{20} = \frac{8}{2} = \frac{4}{1} = 4[/tex]
3).
[tex] \frac{6}{7} \times \frac{5}{8} = \\ \frac{6 \times 5}{7 \times 8} = \\ \frac{30}{56} = \frac{15}{28} [/tex]
4).
[tex]7 \frac{7}{8 }\times 1 \frac{5}{7} = \\ \frac{63}{8} \times \frac{12}{7} = \\ \frac{63 \times 12}{8 \times 7} = \\ \frac{756}{56} = 13 \frac{28}{56} = 13 \frac{1}{2} [/tex]
5).
[tex]4 \frac{1}{5} \times 6 \frac{3}{7} = \\ \frac{21}{5} \times \frac{45}{7} = \\ \frac{21 \times 45}{5 \times 7} = \\ \frac{945}{35} = \frac{27}{1} = 27[/tex]
6).
[tex] \frac{2}{3} \times 3 \frac{3}{8} \times \frac{5}{9} = \\ \frac{2}{3} \times \frac{27}{8} \times \frac{5}{9} = \\ \frac{2 \times 27 \times 5}{3 \times 8 \times 9} = \\ \frac{270}{144} = \frac{135}{72} = \frac{15}{8} = 1 \frac{7}{8} [/tex]
7).
[tex]7 \frac{7}{9} \times 9 \frac{3}{5} \times 3 \frac{3}{4} = \\ \frac{70}{9} \times \frac{48}{5} \times \frac{15}{4} = \\ \frac{70 \times 48 \times 15}{9 \times 5 \times 4} = \\ \frac{50400}{180} = \frac{5040}{18} = \frac{2520}{9} = \frac{840}{3} = \frac{280}{1} = 280[/tex]
8).
[tex] \frac{5}{8} \times 6 \frac{2}{9} \times 9 \frac{1}{7} = \\ \frac{5}{8} \times \frac{56}{9} \times \frac{64}{7} = \\ \frac{5 \times 56 \times 64}{8 \times 9 \times 7} = \\ \frac{17920}{504} = \frac{8960}{252} = \frac{4480}{126} = \frac{2240}{63} = 35\frac{35}{63} [/tex]
9).
[tex]3 \frac{4}{7} \times 5 \frac{5}{6} \times 8 \frac{2}{5} = \\ \frac{25}{7} \times \frac{35}{6} \times \frac{42}{5} = \\ \frac{25 \times 35 \times 42}{7 \times 6 \times 5} = \\ \frac{36750}{210} = \frac{3675}{21} = \frac{175}{1} = 175[/tex]
10).
[tex]2 \frac{2}{7} \times \frac{3}{8} + 1 \frac{3}{4} = \\ \frac{16}{7} \times \frac{3}{8} + \frac{7}{4} = \\ \frac{16 \times 3}{7 \times 8} + \frac{7}{4} = \\ \frac{48 \times 1}{56 \times 1} + \frac{7 \times 14}{4 \times 14} = \\ \frac{48}{56} + \frac{98}{56} = \\ \frac{48 + 98}{56} = \\ \frac{146}{56} = \frac{73}{28} = 2 \frac{17}{28} [/tex]
11).
[tex]3 \frac{3}{4} \times \frac{7}{10} - 1 \frac{1}{6} = \\ \frac{15}{4} \times \frac{7}{10} - \frac{7}{6} = \\ \frac{15 \times 7}{4 \times 10} - \frac{7}{6} = \\ \frac{105 \times 6}{40 \times 6} - \frac{7 \times 40}{6 \times 40} = \\ \frac{630}{240} - \frac{280}{240} = \\ \frac{630 - 280}{240} = \\ \frac{350}{240} = \frac{35}{24} =1 \frac{11}{24} [/tex]
12).
[tex]4 \frac{1}{2} + 1 \frac{3}{7} \times 2 \frac{2}{5} = \\ \frac{9}{2} + \frac{10}{7} \times \frac{12}{5} = \\ \frac{9}{2} + \frac{10 \times 12}{7 \times 5} = \\ \frac{9 \times 35}{2 \times 35} + \frac{120 \times2}{35 \times 2} = \\ \frac{315}{70} + \frac{240}{70} = \\ \frac{315 + 240}{70} = \\ \frac{555}{70} = 7\frac{65}{70} = 7 \frac{13}{14} [/tex]
13).
[tex]9 \frac{1}{3} - 4 \frac{1}{6} \times 2 \frac{1}{10} = \\ \frac{28}{3} - \frac{25}{6} \times \frac{21}{10} = \\ \frac{28}{3} - \frac{25 \times 21}{6 \times 10} = \\ \frac{28 \times 20}{3 \times 20} - \frac{525 \times 1}{60 \times 1} = \\ \frac{560}{60} - \frac{525}{60} = \\ \frac{560 - 525}{60} = \\ \frac{35}{60} = \frac{7}{12} [/tex]
Terima kasih
18. Selesaikan perkalian pecahan! 1. 2 1 2 - X - = 3 6 2. 4 1 2 - X - = 5 8 3. 2 2 1 - X - = 7 5 4. 2 2 1 - X - = 7 3 5. 7 2 1 - X - = 8 5 6. 2 5 - X 1 - = 3 9 7. 2 3 - X 1 - = 5 7 8. 3 3 - X 2 - = 4 10 9. 4 7 - X 1 - = 5 8 10. 5 3 - X 1 - = 8 4 Tolongin ya terima kasih :D
Jawaban:
maksutnya apa aku gak faham maaf ya
19. 1. 1 5/8 + 0,21 x 2 1/52. 1 5/8 : 0,25 x 2 1/5pakai cara yaa...
Jawaban:
1. 1 5/8 + 0,21 × 2 1/5
= 13/8 + 21/100 × 11/5
= 13/8 + 321/500
= 1.625/1000 + 642/1000
= 983/1000
2. 1 5/8 : 0,25 x 2 1/5
= 13/8 × 100/25 × 11/5
= 715/50
= 14 3/10
maaf kalo salah
20. tentukan himpunan penyelesaian dari : 1. 3(x+5)-2(x+2)=4(x-2) 2. 7(x-7)-8(x-2)=1/2(x+5) 3. 1/5 (x-3)=1/4(2x+8) 4. 2(x-7)=1/4(2x+8) 5. | x+5 | = 5
1.)3(x+5)-2(x+2)=4(x-2)
3x+15-2x-4=4x-8
-x+19=4x-8
-3x=-27
x=27/3
x=9
2.)7(x-7)-8(x-2)=1/2(x+5)
7x-49-8x+16=1/2x+5/2
-x-33=1/2x+5/2
-x-1/2x=33+5/2
-3/2x=66+5/2
-3/2x=71/2
x=71/2*-2/3
x=-142/6
x=-23,66
3.)1/5(x-3)=1/4(2x+8)
x/5-3/5=x/2+2
x/5-2/x=3/5+2
2x-5x/10=3/5+10/5
-3x/10=13/5
x =13/5*-10/3
x=-130/15
x=-8,66
4.)2(x-7)=1/4(2x+8)
2x-14=1/2x+2
2x-1/2x=14+2
3/2x=16
x=16/1,5=10,66
5.)|x+5|=5
x+5=5
x=5-5
x=0
² ≥7(3-x)-10 adalaha. x≤-1 atau 2≤x≤5 atau x≥8b. x≤1 atau 2≤x≤5 atau x≥8c. x≤1 atau -2≤x≤5 atau x≥8d. x≤...){kind=link}
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