2 10 5 15 5 xThe median of the five numbers in the box is 10. The range is 12.a What is the value of x?b What is the mean?
1. 2 10 5 15 5 xThe median of the five numbers in the box is 10. The range is 12.a What is the value of x?b What is the mean?
Jawab:
Penjelasan dengan langkah-langkah:
[tex]R(X) = 12 = \text {Max(X) - Min(X)}\\\\\text{diasumsikan : Min(X) = 5, Max(X) = x}\\\\12 = x-5\\\\\boxed{x = 17 }[/tex]
[tex]M = 10, \;X_a = \{5,5\}, \; X_b = \{15,17\}\\\\\text{Total Jarak $X_a$ ke 10 = } 5\cdot 2 = 10\\\\\text{Total Jarak $X_b$ ke 10 = } 5 + 7 = 12\\\\\text{Mean dari X akan ditemukan bila Total jarak $X_a$ dan $X_b$ ke mean sama}\\\\\;X_a = \{5,5\}, \; X_b' = \{15,15\} \\\\M = \bar{X'} = 10\\\\\boxed{\bar{X} = \bar{X'} + \dfrac{17- 15}{2}= 10+0.4=10.4}[/tex]
2. x+ 10%= 75,000 what is the value of x?
[tex] = 75000 \times \frac{10}{100} \\ = 7500 \\ x + 10\% = 75000 \\ x = 75000 - 10\% \\ x = 75000 - 7500 \\ x = 67500[/tex]
3. what is the value of 7/7 x 7/4?
7/7 = 1
so,
1 x 7/4 means
7/4.
The answer is 7/4
Jawaban:
#backtoschool2019
maaf kalo salah
Penjelasan dengan langkah-langkah:
[tex] \frac{7}{7} \times \frac{7}{4} \\ = 1 \times \frac{7}{4} \\ = \frac{7}{4} = 1 \frac{3}{4} \\ \\ atau \\ \frac{7}{7} \times \frac{7}{4} \\ = \frac{49}{28} \\ = \frac{7}{4} = 1 \frac{3}{4} [/tex]
4. What is the missing value in the equivalent ratio of 42 : ______ = 7 : 10
Jawaban:
60
Penjelasan:
42:... = 7:10
42:7=6
The different of ratio is 6.
7:10 = 7(×6):10(×6) = 42:60
5. What is the value of x from the equation -8x=-56
Penjelasan dengan langkah-langkah:
[tex] - 8x = - 56[/tex]
[tex]8x = 56[/tex]
[tex]x = \frac{56}{8} [/tex]
[tex]x = 7[/tex]
6. What is the value of 3 - 7/8
Cara ada di foto. Okeehh
7. what is the value of x 1495=490 + x
Jawaban:
1005
Penjelasan dengan langkah-langkah:
1495= 490 + x
1495 - 490= x
1005= x
cmiiw
8. In 63.05, what is the value of the digit 5?
Jawaban:
200
Penjelasan dengan langkah-langkah:
Gtw tapi saya belum belajar kalo udah belajar baru saya jawab ya
9. Given that 4x : 9 = 7 : 3, the value of x is….5 521 12
Penjelasan dengan langkah-langkah:
4x : 9 = 7 : 3
3(4x) = 9(7)
12x = 63
x = 63/12
x = 5 ¹/₄
10. What is the value for f(4) if f(x)=2x What is the Value of f(-5) if f(x)=20x
1. f(x) = 2x
ㅤf(4) = 2(4)
ㅤf(4) = 8 ✔️
2. f(x) = 20x
ㅤf(-5) = 20(-5)
ㅤf(-5) = -100 ✔️
Jawaban:
[tex]1). \: f(x) = 2x \\ f(4) = 2.4 \\ = 8 \\ 2). \: f(x) = 20x \\ f( - 5) = 20.( - 5) \\ = - 100[/tex]
Penjelasan dengan langkah-langkah:
semogamembantuya^_^
11. If x = 5 + √3, what is the value of x2 − 10x + 25?
Jawab: 20√3 + 3
Penjelasan dengan langkah-langkah:
12. What is the value of 5/6 of 42?
[tex] \frac{5}{6} \times 42 = 5 \times 8 = 40[/tex]
Jawab:
5/6 × 42 = 42 ÷ 6 = 7 × 5 = 35
Jawaban terakhir:
35
13. √x + √9 = √64what is the value of x?
√x + √9 = √64
√x + 3 = 8
√x = 8 - 3
√x = 5
x = 5²
x = 25
✍✍ ᑕᗩᖇᗩ ᑭEᑎGEᖇᒍᗩᗩᑎ ✍✍
[tex]\boxed{\colorbox{hotpink}{\bf{\red{ {Answer \: by : \: \boxed{ \colorbox{purple}{ \bf{ \green{Saputri \: { \pink{Canzzz \: }}}}}}}}}}}[/tex]
√x-3=-8√x=-8+3√x=-5x=√-5x=25✔✔[tex] \huge \color{c4faf8}{\underbrace{\textsf{\textbf{\color{pink}-{\color{skyblue}{S}{\color{pink}{a}{\color{skyblue}{p}{\color{pink}{u}{\color{skyblue}{t}{\color{pink}{r}{\color{skyblue}{i}{\color{pink}{C}{\color{skyblue}{a}{\color{pink}{n}{\color{skyblue}{z}{\color{pink}{z}{{\color{pink}-}}}}}}}}}}}}}}}}}} [/tex]
[tex]{ \blue{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed{ \boxed{UwU}}}}}}}}}} [/tex]
ÂѧWƏŘ BÝ :
◢█⬚█⬚█⬚█◣
✧⌔✧⌔✧⌔✧⌔✧⌔✧
[tex]{ \mathcal\color{hotpink}{{ \pink{ \underline{ \blue{ \underline {\mathcal\color{ff2589} {Sap{\tt\color{ff0961}{utriCanz}}}}}}}}}}[/tex]
✧⌔✧⌔✧⌔✧⌔✧⌔✧
◥█⬚█⬚█⬚█◤
ᴘᴀᴘᴀʏ!
14. if x = 4, then what is the value of 12/x + 3 ?
Penjelasan dengan langkah-langkah:
[tex]x = 4 \\ \frac{12}{x + 3} = \frac{12}{4 + 3} = \frac{12}{7} = 1 \frac{5}{7} [/tex]
Jawaban:
[tex]x = 4 \\ \frac{12}{x} + 3 \\ \frac{12}{4} + 3 \\ 3 + 3 = 6[/tex]
Penjelasan dengan langkah-langkah:
semoga bermanfaat dan semoga gak salah
15. The average of 5, 6, 8 and n is 7. What is the value of n?
Jawaban:
[tex]7 = \frac{5 + 6 + 8 + n}{4} [/tex]
[tex]7 \times 4 = 5 + 6 + 8 + n[/tex]
[tex]28 = 19 + n[/tex]
[tex]n = 28 - 19 = 9[/tex]
Jawaban:
*
value
5, 6 , 8 , n
*
the average = 7
*
7 = (5 + 6 + 8 + n)/4
7 x 4 = 5 + 6 + 8 + n
28 = 19 + n
n = 28 - 19
n = 9
16. what is the value of x?
Jawaban:
x = 4
Penjelasan dengan langkah-langkah:
[tex] \frac{ {2}^{x + 2} + {2}^{x + 4} + {?}^{x + 6} }{128} = \frac{21}{2} [/tex]
[tex] {2}^{x + 2} + {2}^{x + 4} + {2}^{x + 6} = \frac{21}{2} \times 128[/tex]
[tex] {2}^{x + 2} + {2}^{x + 4} + {2}^{x + 6} = 1344[/tex]
[tex](1 + {2}^{2} + {2}^{4} ){2}^{x + 2} = 1344[/tex]
[tex](1 + 4 + 16) {2}^{x + 2} = 1344[/tex]
[tex]21 \times {2}^{ x + 2} = 1344[/tex]
[tex] {2}^{x + 2} = \frac{1344}{21} [/tex]
[tex] {2}^{x + 2} = 64[/tex]
[tex] {2}^{x + 2} = {2}^{6} [/tex]
[tex]x + 2 = 6[/tex]
[tex]x = 6 - 2[/tex]
[tex]x = 4[/tex]
jadi, nilai x adalah 4
17. a=5 √2 2a = √2x What is the value of x
Penjelasan dengan langkah-langkah:
[tex]a = 5 \sqrt{2} \\ 2a = \sqrt{2} x \\ 2(5 \sqrt{2} ) = \sqrt{2} x \\ 10 \sqrt{2} = \sqrt{2} x \\ x = \frac{10 \sqrt{2} }{ \sqrt{2} } = 10[/tex]
18. 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!!
19. Look at the figure aboveWhat is the value of X?
Materi : Sudut
x = 180° - (55° + (180° - 83°))
x = 180° - (55° + 97°)
x = 180° - 152°
x = 28°
20. If 2x + 1 = 7 what is the value of x?
Jawaban:
x = 3
Penjelasan dengan langkah-langkah:
2x + 1 = 7
2x = 7 - 1
2x = 6
x = 6/2
x = 3 ✔️
Jawaban:
x=3
Penjelasan dengan langkah-langkah:
2x +1=7
2x =7 -1
2x =6
x =6\2
x =3
0 Komentar