The value of 1 1/2 + 2 2/5 is... The value of 3 5/12 - 1 2/3 is... The value of 3 3/8 - 1 1/2 is... The value of 4 5/6 + 2 1/2 is... The value of 2/5 x 40 is.. The value of 5/12x2/3 is... Tolong di bantuuu!
1. The value of 1 1/2 + 2 2/5 is... The value of 3 5/12 - 1 2/3 is... The value of 3 3/8 - 1 1/2 is... The value of 4 5/6 + 2 1/2 is... The value of 2/5 x 40 is.. The value of 5/12x2/3 is... Tolong di bantuuu!
Jawab:
1. 1 1/2 + 2 2/5= 19/5
= (1×2+1 ) + (2×5+2)
= 3/2 + 12/5
= 3/2 × 2,5
= 7,5/5 + 12/5
= 19/5
2. 3 5/12 - 1 2/3 = 21/12
= (3×12+5) - (1×3+2)
= 41/12 - 5/3
= 5/3 × 4
= 41/12 - 20/12
= 21/12
3. 4 5/6 + 2 1/2 = 44/6
= (4×6+5) + (2×2+1)
= 29/6 + 5/2
= 5/2 × 3
= 29/6 + 15/6
= 44/6
4. 2/5 × 40 = 80/5
= 2/5 × 40/1
= 80/5
5. 5/12 × 2/3 = 10/36
= 5/12 × 2/3
= 10/36
Semangat belajar!!
2. 1. The value of 2 1/2+1 2/3 is... ( In English ) 2. The value of 2 5/3-1 1/2 is.... ( In English ) 3. The value of 5/3 x 9 is... ( In English ) 4. The value of 5/3 x 1/2 is... ( In English ) 5. 5/2:3/4 ..... TOLONG DIJAWAB CEPAT DAN LENGKAP!
Jawaban:
1. 25/6
2. 13/6
3. 45/3
4. 5/6
5. 20/6
3. The value of 1/2 + 1/3 - 1/4 is? Pakai cara
1/2 = 6/12
1/3 = 4/12
1/4 = 3/12
6 + 4 - 3/12
7/121/2+1/3-1/4
= (6/12+4/12)-3/12
=10/12-3/12
= 7/12
4. 1. The equation of a funtion is y = 4x+ 1, find the value of y when x = 2 5 poin a. 8 b. 9 c. 10 d. 11 2. The equation of a function is y = 7 - 2x, find the value of x when y = 5 5 poin a. 1 b. 2 c. 3 d. 4
1. Cause x=2, therefore
y=4x+1
y=4(2)+1
y=8+1
y=9 (b)
2. Cause y=5, therefore
y=7-2x
5=7-2x
2x=7-5
2x=2
x=2/2
x=1 (a)
5. 1.The value of 4+(-5)+(-3)is A.4 B.-4 C.3 D.-7 2.The missing number of -8-() =10 is A. 0 B.-4 C.3 D.-7 3.The value of (-8)-(-2)+(-28):4 is A.-1 B.3 C.2 D.-13
Jawaban:
1.D-7
2.C.3
3._1
maaf kalo salah
6. The coefficient of x² in the expansion of (4 + ax)(1 + x/2)⁶ is 3. Find the value of the constant a.
[tex]a = - 4[/tex]
STEP :[tex]( {x + y})^{6} = {x}^{6} + 6 {x}^{5} y + 15 {x}^{4} {y}^{2} + 20 {x}^{3} {y}^{3} + 15 {x}^{2} {y}^{4} + 6 x {y}^{5} + {y}^{6} [/tex]
[tex](4 + ax)( {1 + \frac{x}{2} })^{6} = [/tex]
[tex](4 + ax) ({1}^{6} + 6( {1})^{5}( \frac{x}{2}) + 15( {1})^{4} ( {\frac{x}{2}})^{2} + 20( {1})^{3} ( {\frac{x}{2}})^{3} + 15( {1})^{2} ( {\frac{x}{2}})^{4} +6( {1}) ( {\frac{x}{2}})^{5} + ( {\frac{x}{2}}^{6} ) )[/tex]
[tex] = (4 + ax)(1 + 3x + \frac{15 {x}^{2} }{4} + \frac{ 20{x}^{3} }{8} + \frac{ 15{x}^{4} }{16} + \frac{ 6{x}^{5} }{32} + \frac{ {x}^{6} }{64} )[/tex]
unit that contains x² is :
[tex] = 4( \frac{15 {x}^{2} }{4} ) + ax(3x)[/tex]
[tex]= 15 {x}^{2} + 3a {x}^{2} [/tex]
[tex] = (15 + 3a) {x}^{2} [/tex]
The coefficient of x² is 3, so :
[tex]15 + 3a = 3[/tex]
[tex]3a = 3 - 15[/tex]
[tex]3a = - 12[/tex]
[tex]a = - 4[/tex]
7. 3) Find the value of ", if 8⁴ ÷ 4³ = 2"
Jawaban:
6
Penjelasan dengan langkah-langkah:
8⁴ ÷ 4³ = 2"
=> (2³)⁴ ÷ (2²)³ = 2"
=> 2¹² ÷ 2⁶ = 2"
[tex] = > {2}^{(12 - 6)} = 2"[/tex]
=> 2⁶ = 2"
=> 6 ="
so,thevalueof"is6
8. Find the value of 3/6 x 2 1/5 ?
Jawaban:
[tex] \frac{3}{6} \times 2 \frac{1}{5} \\ = \frac{3}{6} \times \frac{11}{5} \\ \\ = \frac{33}{20} [/tex]
Semoga bermanfaat
Jangan lupa follow dan jadikan jawaban tercerdasya :)
[tex] \beta \gamma \: johan \: sembiring[/tex]
Penjelasan dengan langkah-langkah:
[tex] \frac{3}{6} \times 2 \frac{1}{5} [/tex]
[tex] = \frac{3}{6} \times \frac{11}{5} [/tex]
[tex] = \frac{3 \times 5}{6 \times 5} \times \frac{11 \times 6}{5 \times 6} [/tex]
[tex] = \frac{15}{30} \times \frac{66}{30} [/tex]
[tex] = \frac{990}{30} [/tex]
[tex] = \frac{99}{3} [/tex]
[tex] = 99 \div 3[/tex]
[tex] = 33[/tex]
9. 1. Find the value of x.5x + 24x + 32.x - 3
Jawaban:
5x+2
5x= -2
×= -⅖
4x+3
4x= -3
×= -¾
2x-3
2x= 3
x= 3/2= 1½
10. Given of function f(x) = 1/2x - 3 1/2 the value of f(-2) + f(4) =
f(x) = 1/2x - 3 1/2
f(-2) + f(4)
(1/2(-2) - 3 1/2)) + (1/2(4) - 3 1/2))
(-1 - 3 1/2) + (2 - 3 1/2)
(-4 1/2) + (- 1 1/2)
-5 2/2
-6
11. pertanyaan random: 1. 6/8=...... 2. What is 7/9 of 108? 3. Find the value of each of the following. a. 1/4 of 16=___ b. 3/5 of 25=___ c. 2/7 of 77=___
Jawab:
Penjelasan dengan langkah-langkah:
1. [tex]\frac{6}{8}[/tex]
[tex]\frac{6}{8} : 2 = \frac{3}{4}[/tex]
2. 7/9 of 108
[tex]\frac{7}{9}[/tex] × [tex]108 = 7[/tex] × 108 ÷ 9
108 ÷ 9 = 12
7 × 12 = 84
3a)
1/4 of 16 = 16/4 = 4
3b)
3/5 of 25 = 3 × 25 ÷ 5 = 3 × 5 = 15
3c)
2/7 of 77 = 2 × 77 ÷ 7 = 2 × 11 = 22
Jadikan Jawaban Terbaik Ya :)
12. Find the value of 7 x 1/2
Jawaban:
7 x 1/2 = 7/2 = 3 1/2
Penjelasan dengan langkah-langkah:
......................
Jawaban:
[tex]7 \times \frac{1}{2} = \frac{7}{2} = 3 \frac{1}{2} [/tex]
13. The values of the expression ax^2+bx+1 are 1 and 4 when x takes the value of 2 and 3 respectively. Find the value of the expression when x=4
Jawab:
9
Penjelasan dengan langkah-langkah:
Given : ax^2 + bx + 1 = y, (x,y) = (2,1) and (3,4)
if x = 2 , y = 1
then 4a + 2b + 1 = 1
4a + 2b = 0
-2a = b........(1)
if x = 3, y =4
then 9a + 3b + 1 = 4
9a + 3b = 3
3a + b = 1........(2)
(subtitute (1) to (2))
3a -2a = 1,
a = 1 and b = -2
so, the new equation is x^2 -2x + 1
x = 4, then 16 - 8 + 1 = 9
14. 1.the theme of the song2.the purpose of the song3.what the song is about4.moral value of the songtolong yaa kakkk
Jawaban:
the theme of the song is hero
the purpose to remind us to always remember what a big thet did to us to taked a glory
this song about some hero
we have to remeber cause of all hero did all everyting to our country
15. What is the value of 3 - 7/8
Cara ada di foto. Okeehh
16. the mean of 5 numbers (x+1),11,(x^2+5)+(x^2+1)+(3x+1) is x^2+3. the value of x^3 is?
(x+1)+11+(x^2+5)+(x^2+1)+(3x+1)/5 =x^2+3
2x²+x+19 = 5x²+15
5x²+15-2x²-x-19=0
3x²-x-4=0
(3x -4)(x+1)=0
x= 4/3 or x = -1
value x³
if x = 4/3 then x³=4/3³= 64/27
if x = -1 then (-1)³=-1
17. What is the value of 1 3/5 + 2 4/9
[tex]1 \frac{3}{5} + 2 \frac{4}{9} = \frac{8}{5} + \frac{22}{9} \\ \\ \frac{72 + 110}{45} = \frac{182}{45} \\ \\ 4 \frac{2}{45} [/tex]
18. . 9 + 5p = 24 ; the value of p is ….4 + m = 3 x 2 ; the value of m is …
Jawaban:
ᴊᴀᴡᴀʙᴀɴ ᴅᴀɴ ᴘᴇɴʏᴇʟᴇꜱᴀɪᴀɴ₊˚ˑ༄ؘ
nomor 19 + 5p = 24. nilai p = ?
→ 9 + 5p = 24
→ 5p = 24 – 9
→ 5p = 15
→ p = 15/5
→ p = 3nomor 24 + m = 3 x 2. nilai m = ?
→ 4 + m = 3 x 2
→ 4 x m = 6
→ m = 6 – 4
→ m = 2⊱ ────── {⋆⌘⋆} ────── ⊰
Detail JawabanMapel :Matematika
Kelas :VIII (8 SMP)
Materi :Sistem Persamaan Linear Dua Variabel (SPLDV)
Kode soal :2
Kata kunci:Menentukan nilai p dan m dari SPLDV
19. Find the value of × in the following! 7 : 2× = 14 : 1
Jawab:
- 1
Penjelasan dengan langkah-langkah:
[tex]\frac{7}{2^{x} } = \frac{14}{1} \\[/tex]
kali silang
[tex]7. 1 = 14. 2^{x}\\7 = 7. 2. 2^{x}\\1 = 2. 2^{x}[/tex]
[tex]2^{0} = 2^{x+1}\\0 = x+1\\x = -1[/tex]
20. The value of lim x→4 x—4 per 1—√x—3
limx→4 x—4 per 1—√x—3
limx→4 x—4 per 1—√x—3 × (1+√x—3/1+√x—3)
limx→4 (x—4) × (1+√x—3) / 1-(x—3)
limx→4 (x—4) × (1+√x—3) / 4 - x
(x—4) / (4 - x) = -1
ini kenapa -1 karena kedua bilangan tersebut saling invers satu sama lain
jadi,
limx→4 -(1+√x—3)
-(1+√4—3)
-(1+√1)
-(1+1)
-2
semoga membantu dek
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