4/5 * N = 1, what is the value of N ?
1. 4/5 * N = 1, what is the value of N ?
4/5 * N = 1
=> (4/5) * (5/4) * N = 1 * (5/4)
=> N = 5/4
So, N = 5/4
2. 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!!
3. On a map the distance of 20 kilometers was represented by a length of 80 cm the scale of a map was 1 : n calculate the value of n
Jawaban:
20 km = 2.000.000 cm (multiply by 100.000)
MD = map distance
S = scale
AD = actual distance
[tex] \sf \: MD = S \times AD \\ \\ \sf \:80 = \frac{1}{n} \times 2.000.000 \\ \\ \sf \:80 = \frac{2.000.000}{n} \\ \\ \sf \:80n = 2.000.000 \\ \\ \sf \:n = \frac{2.000.000}{80} \\ \\ \sf \:n = 25.000[/tex]
The value of n is 25000
4. a. the value of nb. the measure of ROQ
Jawaban:
a. 25
b130
Penjelasan dengan langkah-langkah:
2n + 4n + 30
6n + 30
(180 -30):6=25
n=25
4 x 25 + 30=130
5. 1.The place value of digit 5 in 345.678 is... 2.The place value of digit 5 in 345.678 is...
Jawaban:
1. tens
Penjelasan:
Often these will just appear with letters on them to represent each position Millions, Hundred Thousands, Ten Thousands, Thousands, Hundreds, Tens, Ones, tenths, hundredths, and so on.
6. Scale of map is 1 : 300.000. if the distance of city A and city B is 180 km, then the distance both of city in map is
JP = JS x Skala
JP = 18.000.000 cm x 1/300.000
JP = 60 cm.180 km = 18000000 cm : 300.000 : 60
the distance both of city in map is 60
7. what is the decimal of 5 units 2 tenths
Jawab:
5,2
Penjelasan dengan langkah-langkah:
2 tenths = 0,2
5 + 0,2 = 5,2
8. 3. (a) What is the value of the digit 2 in the number 4.02?Draw a ring around the correct answer.2 hundreds 2 tens 2 units 2 tenths2 hundredth(b) What is the value of the digit 5 in the number 125 319?
Jawaban:
A. 2 hundredth
B. 5000 (five thousand)
Penjelasan dengan langkah-langkah:
A. 4.02=
0.02=
2/100
B. 125 319
5 = 5 000
9. 2,8 ÷ 0,4 = n, the value of n is ….
Penjelasan dengan langkah-langkah:
[tex]2.8 \div 0.4[/tex]
[tex] = \frac{28}{10} \div \frac{4}{10} [/tex]
[tex] = \frac{ \cancel{28}}{ \cancel{10}} \div \frac{ \cancel{10}}{ \cancel4} [/tex]
[tex] = \frac{7}{1} \times \frac{1}{1}[/tex]
[tex] \boxed{ = 7}[/tex]
10. 11. The force of attraction between two magnets is inversely proportional to the square of the distance between them. When the magnets are r сm apart, the force of attraction between them is F newtons (N). If the distance between the magnets is increased by 400%, the force of attraction between them becomes cF N. Find the value of c.
Jawab:
As we know, the formula for force of attraction is : k/r² for k the same to both force
The first force is F. hence ,
F = k/r²
The second DISTANCE is increased by 400%, then total Distance is 500%r or 5r
Hence,
cF=k/(5r)²
cF=k/25r²
we know that F=k/r², then
c(k/r²)=k/25r²
Eliminate k/r² on the both side, we get
c=1/25
Hope this will help you <3
#UrasekaiPicnic
11. 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
12. 4,8 ÷ 0,6 = n, the value of n is . . . . tolong saya
Jawaban:
4,8:0,6=n
n=8
Penjelasan dengan langkah-langkah:
jadi n adalah 8
semoga membantu ya terimakasih...
13. Alarde has a chrcumference of 50,24 unitsWhat is the radius of the circle
Jawaban:
alarde memiliki keliling 50,24 satuan adalah jari-jari lingkaran
14. A double with the value of 20. 5 is cast to an int. What is the value of the int?.
20 + 20 = 40
5 is cast to an int
40 - 5 = 35
What is the value of the int?
= 5 int
Penjelasan:
Good luck
15. the distance of two cities on the map is 15 cm. ife the scale of the map is 1:150.000, the actual distance of two cities is...
Jawaban:
150.000 ÷ 15 cm = 10.000 CM
IN KM:
10.000 ÷ 100.000 = 0,1 KM
Penjelasan dengan langkah-langkah:
HOPE THE ANSWER IS USEFULL
16. 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
17. What is the value of n in the equation 64 ÷ n = 8
Jawaban:
[tex]64 \div n = 8[/tex]
[tex] \frac{64}{n} = 8[/tex]
[tex]64 = 8n[/tex]
[tex]8n = 64[/tex]
[tex]8n \div 8 = 64 \div 8[/tex]
[tex]n = 8[/tex]
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18. 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
19. the ratio of A : B is 5 : 6. if the value of A is 20 find the value of B
Jawaban:
Perbandingan A Dan B Itu 5 : 6
Jadi Hitung Aja Rationya 1 Berapa
Kalo 5 = 20
Jadi 1 = 4
Value B = 6 ×4 = 24
20. The scale of map is 1:500.000. If the distance of m to n on the map is 5cm, the real distance of m to n is..... A.o,25km B.2,5km C.25km D.250km
S = 1 : 500.000
JP = 5 cm
JS = ......?
=============
Js = Jp/s
[tex]5 \div \frac{1}{500.000} [/tex]
[tex] = 5 \times \frac{500.000}{1} \\ = \frac{2.500.000}{1} \\ = 2.500.000 [/tex]
===========================
disederhanakan menjadi 25 Km (C)
Real distance = Distance on the map : Scale of the map
= 5 cm : 1/500.000
= 5 cm x 500.000/1
= (2.500.000 cm / 100000) km
= 25 km.
The answer is C. 25 km
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