If q is directly proportional to p an q=28 when p=4,find the value of q when p=5,find the value of p when q=42
1. If q is directly proportional to p an q=28 when p=4,find the value of q when p=5,find the value of p when q=42
Jawab:
When p=5, q=35.
When q=42, p=6.
Penjelasan dengan langkah-langkah:
q = kp
28 = 4k
k = 7
a) q = 7 x 5 = 35
b) 42 = 7p
p = 6
2. If a square has 84cm as it's perimeter what is the side of the square and what is the area of that square
4s=84cm
side=84/4=21 cm
area=s x s =21 x 21 =441 cm2
3. y varies directly as x. If x = 5 when y = 12 find x when y = 30 .
Jawaban:
12.5
Penjelasan dengan langkah-langkah:
X=Y
5=12
X=30
X=5×30+12=12.5
The Value of X when Y=30 is 12.5
Maaf jika salah.Semoga membantu.>_<.
4. Math 1. The area of a square is 49 square centimetres. Find the perimeter of the square. 2. The length of a rectangle is 13 cm. What is the width if the area is 65 square centimetres? 3. The are of rectangle is 48 square centimeters, If its length is 8 cm, what is its perimeter?
Jawaban:
1. luas = sisi x sisi
49 = sisi ²
sisi = 7cm
perimeter = 7x4 = 28
2. luas = panjang x lebar
65 = 13 x lebar
lebar = 5cm
width = 5cm
3. luas = panjang x lebar
48 = 8 × lebar
lebar = 6
perimeter = 6x2 + 8x2
= 28
5. 19. If the area of a rectangle of width 6 cm is same as the area of a square of side 12 cm, then the length of the rectangle is …
Jawaban:
24 cm
Penjelasan dengan langkah-langkah:
Luas persegi = sisi² = 12² = 144 cm²
Luas persegi panjang = Luas persegi = 144
Luas persegi panjang = lebar×panjang
144 = 6×panjang
panjang = 24 cm
6. if the area of small square is 1cm2,then the area of shaded region is....
jika luas kotak kecil adalah 1cm2, maka area yang diarsir adalah ....
PQ = √(2² + 4²)
PQ = √(4 + 16)
PQ = √20
PQ = 2√5 cm
L.persegi = PQ² = (2√5)² = 20 cm²
L.persegi kecil = 2² = 4 cm²
L.arsir = L.persegi - L.persegi kecil
L.arsir = 20 - 4
L.arsir = 16 cm²
semoga membantu ^^
7. The midpoint of the diagonal of a square is 2 units from the vertex of the square. Calculate area of the square.
Jawaban:
Titik tengah diagonal persegi adalah 2 satuan dari titik sudut persegi. Hitung luas persegi.
8. The volume of a cuboid with a square base is 6.400 cm3. If the area of the square base is 40 cm2, what is the height of the cuboid?
Information:
[tex]Volume = 6400 cm^{3} \\Base = 40 cm^{2}\\Height = ?[/tex]
Solution:
The formula of cuboid's volume is length × width × height
We can conclude that length × width will result as the square base's area.
length × width × height = 6400
40 × height = 6400
height = 6400 : 40
height = 160
The height of the cuboid is [tex]160 cm^{2}[/tex] or [tex]0,016m^{2}[/tex]
9. Y varies as the cube root of (x+3) When the x=5, y= 1 Find the value of y when x=340
[tex]{\bf{Solution}} \\ y=n\sqrt[3]{x+3} \\ 1=n\sqrt[3]{5+3} \\ 1=2n \\ n=\frac{1}{2} \\ {\rm{If :\ x=340}} \\ y=\frac{1}{2}\sqrt[3]{340+3} \\ y=\frac{1}{2}\sqrt[3]{343} \\ y=\frac{1}{2}\times 7 \\ y=\frac{7}{2} \\ \blue{\boxed{y=3.5}}[/tex]
10. if q is directly proportional ti p and q = 28 when p = 4 express q in terms of p
Materi: Proportionality
q = 28 when p = 4, this means there is a constant factor which relating the value of p and q. Find it first by dividing q to p,
28:4 = 7. Now, we can express q by p that,
q = 7p. q is shown as directly proportional to p
11. Q.4³ × 2² = bkn Indo ;-;===============F varies jointly as q1 and q2 and inversely as the square of d. If F=8 when q1=2, q2=8, and d=4, find F when q1=28, q2=12, and d=2gk ush dijawab yg bawah ✅
Jawab:
256
Penjelasan dengan langkah-langkah:
4³ × 2² =
===============================
4³ x 2²
4 x 4 x 4 x 2 x 2
16 x 4 x 4
64 x 4
256
✨✨✨JAWABAN✨✨✨4³ × 2² = 256
Penjelasan dengan langkah-langkah:
[tex] = 4³ × 2² \\ = (4 \times 4 \times 4) \times (2 \times 2) \\ = 64 \times 4 \\ = 256[/tex]
✨ SEMOGA MEMBANTU ✨12. the number of people per unit of area usually per square kilometer is know as
======Jawaban=====
the number of people per unit of area usually per square kilometer is know as KEPADATAN PENDUDUK ARITMATIK ( arithmatic puncture density)
semoga manfaat
KELAS : 11
MAPEL : GEOGRAFI
MATERI : ANTROPOSFER
KATEGORI : KEPADATAN PENDUDUK
13. the figure below is made up of a rectangle and a square. the ratio of the area of the square to area of the rectangle is 2:5. if 0.25 of the square is shaded, what fraction of the figure is unshaded?
gambar dibawah ini dibuat dari sebuah persegi panjang dan sebuah persegi. perbandingan daerah persegi dibandingkan dengan persegi panjang adalah 2:5 jika 0,25 dari persegi tersebut diarsir. berapa bagian dari gambar yang tidak diarsir?
14. If a square has an area of 64 square cm, find the correct perimeter for the square
Jawaban:
area of square = 64 cm^2
side length of square = √64 = 8 cm
perimeter for the square = 4 x 8 = 32 cm
15. The number of people per unit of area usually per square kilometeris known as
tingkat kepadatan penduduk ( population density )
16. If x varies directly as y, and x=27 when y= 6, find x when y = 2.
Jawab:
x = 9 when y = 2
Penjelasan dengan langkah-langkah:
x varies directly as y ⇒ y = kx
x = 27 when y = 6:
y = kx
6 = k×27
k = 6/27 = 2/9
When y = 2:
y = kx
2 = (2/9) × x
x = 2 ÷ (2/9)
x = 2 × (9/2)
x = 9
17. The area of square is 36cm. the perimeter of the square is ____cm.
Jawab:
24cm
Penjelasan dengan langkah-langkah:
Because the area of square is 36 cm it means that the square has 6cm for each side. Now to find the perimeter (keliling), we use 4x sisi as the formula= 4x 6 cm = 24 cm
Keliling persegi adalah 24cm
PendahuluanPersegi merupakan bentuk bangun datar yang memiliki 4 sisi dan membentuk sudut siku-siku. Jumlah besar sudut persegi adalah 90°. Sifat-sifat persegi, antara lain yaitu :
Memiliki 4 sisiMempunyai 4 sumbu simetriPerpotongan antar diagonalnya membentuk sudut siku-sikuPenyelesaianDiketahuiLuas persegi = 36 cm²DitanyakanKeliling persegi
JawabLuas = s²
36 = s²
s² = √36
s = 6
Keliling = 4 × s
= 4 × 6
= 24 cm
Pelajari lebih lanjutAPA yang dimaksud persegi : brainly.co.id/tugas/1357708Menentukan lebar dan keliling persegi ..diketahui panjang 22 dm dan luas 17.600cm persegi : brainly.co.id/tugas/20960870Sebutkan sifat-sifat Persegi! : brainly.co.id/tugas/2043135Detail jawabanKelas : 3
Mapel : Matematika
Materi : Bab 10 — Persegi dan persegi panjang
Kode Mapel : 2
Kode Kategorisasi : 3.2.10
18. Square A has a side of 6 m. Square B is made up of four Square As. Find the perimeter of Square B.
Square A has a side of 6 m. Square B is made up of four Square As. Find the perimeter of Square B.
Is known:
Square B is made up of four Square As Square A has a side of 6 masked:
perimeter of Square B = ?Answer:
perimeter of Square B = 4 × side
= 4(2.6)m
= 4.12m
= 48m
19. what is the side of square if the pherimeter is 200?
Jawaban:
50
Penjelasan dengan langkah-langkah:
The formula for the perimeter of a square is the sum of 4 sides
So if the perimeter is 200, the side is 50
50 + 50 + 50 + 50 = 200
sorry if wrong
20. Indah park is square. If its area is 361 square meter the perimeter of the park is
[tex]L= {s}^{2} \\ 361 = {s}^{2} \\ s = \sqrt{361} \\ s = 19[/tex]
[tex]K=4s = 4(19) = 76 \: m[/tex]
perimeter of park is 76 meter
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