23.A watermelon has a mass of 12.78 kg. Its mass is thrice the mass of a papaya. Find thetotal mass of the two fruits.
1. 23.A watermelon has a mass of 12.78 kg. Its mass is thrice the mass of a papaya. Find thetotal mass of the two fruits.
Jawaban:
mtk atau b inggris sih:)
2. a kitten and a basket has a mass of 3 kg . A hamster and a similar basket has a mass of 1.4kg . the mass of the kitten is 5 times the mass of the hamster .a. what is the mass of the hamster ? , b. what is the mass of the kitten ?
kitten = x ,hamster = y and baskest = z
x+z = 3 kg
y+z = 1,4 kg
z = x- y = 3 kg - 1,4 kg = 1,6 kg
x+y = 4,4 kg - 1,6 kg = 2, 8 kg
x = 5y
5y +y = 2,8 kg
6y = 2,8 kg
y = 2,8 kg /6
y = 0,47 kg
x = 5y
= 5 * 0,47 kg
= 2,35 kg
a. mass off hamster = 0,47 kg
b. mas off kitten = 2,35 kg
bonus...mass of basket = 1,6 kg
thank's
3. A kitten and a basket has a mass of 3 kg. A hanster and a similar basket has a mass of 1.4 kg. The mass of the kitten is 5 times the mass of the hamster. (a) what is the mass of the hamster? (b) what is the mass of the kitten?
hamster = x
kitten =y
basket=z
y=5x
x + z = 1,4
y+ z = 3. (+)
x-y = -1,6
x-5x=-1,6
6x = 1,6. x =0,267
y = 5x=5×0,267=1,335
4. 1. A bag of grapes has a mass of 4.55 kg. A bag of mangoes has a mass of 6.90 kg. What is the total mass of the two bags of fruits? *
Jawaban:
4.55 + 6.90 = 11.45
Penjelasan:
sorry if it's wrong, hope it helps^^
Jawaban:
4,55 + 6,90 = 11,45
Penjelasan:
total mass of the two bags of fruits is 11,45 kg
5. When loades with bricks,a lorry has a mass of 11,600 kg.if the mass of bricks is three times that of the empty lorry, find the mass of the bricks
lorry + bricks = 11,600 kg
if bricks = 3x mass of lorry, then,
lorry : bricks = 1:3
mass of bricks:
3/4 x 11,600 kg = 8,700 kg
6. A mass of 2 kg rotates at constant speed in a horizontal circle of radius 5 m and the time forone complete revolution is 3 s. The force acting on the mass is
Jawaban:
40phi^2 /9
Penjelasan dengan langkah-langkah:
Dik: m=2 kg
r=5 m
t=3 s
Dit: Fs=?
Jb: Fs= m.w^2.r
= m (2phi/T)^2 r
= 2 (2phi/3)^2 5
= 40phi^2/9
7. calculate the molar mass of a compound if 0.372 mol of it has a mass of 152g
Jawaban:
Massa molar suatu senyawa yang memiliki 0,372 mol dan massa 152g adalah 408.6g/mol
MENGHITUNG MASSA MOLAR :
Massa molar suatu zat dapat dihitung dengan membagi massa zat dengan jumlah molnya . Itu adalah;
Massa molar (g/mol) = massa (g) no. mol ( mol)
Berdasarkan pertanyaan ini, suatu senyawa memiliki 0,372 mol dan massa 152g, maka massa molar senyawa tersebut adalah sebagai berikut:
Massa molar = 152g 0,372mol
Massa molar = 408.6g/mol
Jadi, massa molar suatu senyawa yang memiliki 0,372 mol dan massa 152g adalah 408,6 g/mol.
Penjelasan:
8. The mass of a bag of rice is 3 times the mass of a bag of fruits. If the mass of the bag of the rice is 15 kg, find the mass of the bag of fruits. (please put the calculation)
Jawaban:
5kg
Penjelasan dengan langkah-langkah:
Mass of bag of rice : 3 = Mass of bag of fruit
15 : 3 = 5
Jawaban:
5 kilograms
Penjelasan dengan langkah-langkah:
15 divided by 3 equal to 5
because the weight of the bag of rice is 3 times the weight of the bag of fruit, so the weight of the bag of fruit is the weight of the bag of rice divided by three
gak tau mau ngomong apa lagi
9. A bag of grapes has a mass of 4.55 kg. A bag of mangoes has a mass of16.90 kg. What is the total mass of the two bags of fruits?
Jawaban:
total mass = grapes mass + mangoes mass
total mass = 4.55 kg + 6.90 kg
total mass = 11.45 kg
10. 5/9 of a piece of metal has a mass of 7 kg. What is the mass of 2/7 of the piece of metal?
Jawaban:
5/9 sepotong logam memiliki massa 7 kg. Berapa massa 2/7 dari potongan logam?
Penjelasan dengan langkah-langkah:
maap banget klo salah atau gx tepat.
11. sliding of a mass of earth is called
sliding of a mass of earth is called landslide.
sorry kalau salah (:
12. the mass of pencil 115 grams the mass of a book is 385 grams what is the their total mass
Jawaban:
500 mass is the total mass
The total mass is115 grams + 385 grams=500 grams
So,the total mass is 500 grams
13. The mass of a dictionary is 1.28 kg. The mass of the dictionary is twice the mass of a storybook. The mass of an encyclopaedia is 1.4 kg more than storybook. What is the mass of the encyclopaedia?
Jawaban:
2.04 kg
Penjelasan dengan langkah-langkah:
Jika berat sebuah kamus 2 kali berat buku cerita, maka berat buku cerita adalah setengah dari berat kamus. Sehingga berat ensiklopedia adalah
1.4 kg + (1.28 ÷ 2) kg
= 1.4 kg + 0.64kg
= 2.04 kg
14. A basket with 42 watermelons has a mass of 81950 g.The same basket with 31 watermelon has a mass of 61105 g.If each watermelon has the same mass, what is the mass of the basket ?
42 watermelons + basket = 81.950 g
31 watermelons + basket = 61.105 g -
-----------------------------------------------
11 watermelons = 20.845 g
watermelon = 1.895 g
then,
31 x 1.895 + basket = 61.105 g
58.745 + basket = 61.105 g
basket = 2.360 g
15. Ron divided 207 kg of rice into 3 bags, A, B and C, the ratio of the mass of rice in Bag A to the mass of rice in Bag B was 1 : 2. The ratio of the mass of rice in Bag B to the mass of rice in Bag C was 4 : 3. a. Find the ratio of the mass of rice in Bag A to the mass of rice in Bag B to the mass of rice in Bag C. b. Find the mass of rice in Bag A dengan cara ya!!
Jawaban:
a. 2:4:3
b. 46 kg
Penjelasan:
a. A : B = 1 : 2
B : C = 4 : 3
multiply either equation so that both equations have the same value for B. i choose to multiply the first equation by 2. so,
A : B = 2 : 4
since both ratios have the same value for B, we can merge them together.
A : B : C = 2 : 4 : 3
b. mass A = A/total mass x total mass
since we have the ratio for A and the total mass = 2:(2+4+3),
mass A = 2/9 x 207
= 2 x 23
= 46 kg
16. The mass of a box with 2 marbles is 4.3 gram. The mass of each marbles is 1,3 gram. What is the mass of
Jawab:
the mass of a box is 1,7 gram.
Penjelasan dengan langkah-langkah:
17. The total mass of a block of butter and a box of cherries is 384 g. The mass of theblock of butter is twice the mass of the box of cherries. Find the mass of the blockof butter.
draw model: ∆∆∆
384÷ 3 = 128
cherries = 128 g
butter = 2x 128
butter = 256 g_____
semangat belajar....
18. The mass of an Encyclopaedia is 1.05 kg. The mass of the encyclopaediais thrice the mass of a storybook.The mass of a dictionary book is 0.72 kgmore than the storybook. What is the mass of the dictionary bookuse working
Jawaban:
Massa sebuah Ensiklopedia adalah 1,05 kg. Massa ensiklopedia adalah tiga kali massa buku cerita. Massa buku kamus adalah 0,72 kg lebih dari buku cerita. Berapa massa buku kamus?
Massa ensiklopedia = 1.05 kg
Massa buku cerita = ⅓ massa buku ensiklopedia
cara — ⅓ x 1,05 = 0,35 kg
Massa kamus = massa buku cerita + 0,72 kg
cara — 0,35 + 0,72 = 1,07 kg
semoga membantu
jadikan jawaban terbaik ya..
19. the mass of a watermelon is 7/1 kg. the mass of a apples is 2/5 kg less than the mass of the watermelona. what is the mass of the applesb.what is the total mass of the apples and watermelon
Diketahui:
Berat semangka = 7/1 kg
Berat apel = 2/5 kg kurang dari semangka
Maka:
a. Berat apel = 7/1 - 2/5
= 35/5 - 2/5
= 33/5 = 6 3/5
b. Berat apel dan semangka = 7/1 + 6 3/5
= 35/5 + 33/5
= 68/5 = 13 3/5
Maaf klo salah
Semoga membantu
Jadikan jawaban terbaik ya...
20. Find A is 5kg heavier than object B is and the mass of object C is twice the mass of object A . If the total mass of three object is 255kg.Find the mass of Object C
A + B + C = 255 kgs
( B + 5 ) + B + 2 ( B + 5 ) = 55
4B + 15 = 255
4B = 255 - 15
4 B = 240
B = 60
C = 2( B + 5 )
C = 130
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