The cost of 6 refrigerators and 5 washing machines is $23 639.The cost of each refrigerator is $1650 more than the cost of a washingmachine. How much does a washing machine cost?
1. The cost of 6 refrigerators and 5 washing machines is $23 639.The cost of each refrigerator is $1650 more than the cost of a washingmachine. How much does a washing machine cost?
the cost of a washing machine is $1249
x = refrigerator
y = washing machines
6x + 5y = $23639
x = y + $1650
x = ?
6x + 5y = 23639
6(y + 1650) + 5y = 23639
6y + 5y + 9900 = 23639
11y = 23639 - 9900
11y = 13739
y = $1249
x = y + 1650
x = 1249 + 1650
x = $2899
2. Andre sells a batik cloth to her friend at a price IDR 240 000. Unfortunately loss of 15%. So, the cost price of that batik cloth is A. IDR 220 000 B. IDR 200 000 C. IDR 180 000 D. IDR 120 000
Penjelasan dengan langkah-langkah:
The cost is
= 240.000- (15/100 x 240.000)
= 240.000 - 36.000
= IDR 204.000
3. Ali buys a second watch in price IDR 320 000, then he repair it with cost IDR 140 000. If he sells it and with profit 25% , so the selling price of watch is .... A.IDR 598 000 B.IDR 540 000 C.IDR 575 000 D.IDR 400 000
Jawab:
Penjelasan dengan langkah-langkah:
Modal beli=320.000
Modal Service=140.000
Modal keselurhan=320.000+140.000
=460.000
Agar untung 25% maka:
harga Jual= Hagra Keseluruhan+(harga keseluruhan*25%)
=460.000+(460.000*25%)
=460.000+115.000
=575.000
Jadikan jawaban terbaik ya ehhe
Jawaban:
c. 575.000
Penjelasan dengan langkah-langkah:
Harga beli Rp320.000
perbaikan Rp140.000
Total harga+perbaikan = Rp460.000
Keuntungan = 25% x 460.000 = 115.000
Jadi, Harga jual = Rp460.000 + Rp 115.000 = Rp575.000
4. a packet of rice cracker cost $1,95 what is the gteatest number of packet of rice ajay can buy it with $10,00
10,00 : 1,95 = 5 packets
Hope this will be useful for you..... sorry if it is wrong :)5 packets,sorry if its wrong
5. A pair of shoes cost $82 more than a pair of cufflinks. If 3 pairs of shoes and 3 pairs of cufflinks cost $2904, find the cost of 1 pair of cufflinks.
Jawab:
A pair of cufflinks costs $443
Penjelasan dengan langkah-langkah:
Given that
shoes = s, cufflinks = c
shoes = cufflinks + 82
s = c + 82
→ s - c = 82
3 shoes+3 cufflinks = $2904
3s + 3c = 2904
factorise
3(s+c) = 2904
s+c = 2904÷3
→ s + c = 968
Find c (the price of cufflinks)
Using elimination :
→ s + c = 968
→ s - c = 82
------------------- -
...... 2c = 886
c = 886/2
c = $443
A pair of cufflinks costs $443
[[ KLF ]]
Jawaban:
$443
Penjelasan dengan langkah-langkah:
misal :
x = sepasang sepatu
y = sepasang cufflink
x = 82 + y................(1)
3x + 3y = 2904......(2)
Eliminasi keduanya
3x + 3y = 2904
x + y = 968
x + y = 968
x - y = 82
_________ _
2y = 886
y = $443
6. Shirley buys a fax machine and sells it to davi at a gain of 25% of the cost price.Davi sells the fax machine to amirah at a loss of 25% on the price at which she buys it from Shirley. If Amirah paid $360 for the fax machine how much did Shirley pay for it
Jawaban:
$360
Penjelasan dengan langkah-langkah:
The money Shirley spend = The money Amirah spend
because, Shirley sold it to Davi for 125% of the normal price and Amirah bought it from Davi for (125-25)% = 100%
7. Shirley buys a fax machine and sells it to davi at a gain of 25% of the cost price.Davi sells the fax machine to amirah at a loss of 25% on the price at which she buys it from Shirley. If Amirah paid $360 for the fax machine how much did Shirley pay for it
Jawaban:
$360
Penjelasan:
Amira paid : $360
Davi loss 25% : [tex]\frac{125}{100} x 360 = 450,[/tex] loss 25%= 25% x 350 = 90
Shirley gain 25%; [tex]\frac{100}{125} x 450 = 360,[/tex] gain 25%= 25% x 360 = 90
note:
Amira : $360
Davi: $450 - 90 = $360
Shirley: $360 + 90 = $450
8. A map is drawn a scale of 1 : 400 000 .What is the actual length, in km ,of a river with a length of 3.8cm on the map
Answer:
15.200 m
Step by Step Explanation:
400.000 cm x 3,8 cm = 1.520.000 cm or 1,52 km (15.200 m)
ndak bisa basa engres
9. A kilogram of rice cost $2.05. what is the cost of 30 kg of the rice?
30 x $2.05
= $61.50
hope it helps :)
10. (2) The cost of carpeting a room is $5 per square metre. How much would it cost to carpet a room with an area of 25 m??
Jawaban:
cara membuat kue kering lebaran yang sangat besar
Penjelasan dengan langkah-langkah:
untuk membuat sebuah karya seni rupa
25x5=125
Penjelasan dengan langkah-langkah:
I hope this helps :)
11. The total cost of 2 similar televisions and 5 similar washing machines is $7215.Each washing machine costs $216 less than a television. How much do3 televisions cost?
2 Television = ?
5 Washing Machine x $216 = $ 1.080
$7215-$1.080=$6.135
$6.135 : 2 Television = 3.067,5
3 Television x 3.067,5 = 9.202,5
CMIIW
12. THE TOTAL MASS OF MACHINE A AND MACHINE B IS 80.5 KG. THE MASS OF MACHINE B IS 4 TIMES THE MASS OF MACHINE A. WHAT IS THE MASS OF MACHINE B? EXPRESS YOUR ANSWER IN GRAMS!
A + B = 80,5
A + 4A = 80,5
5A = 80,5
A = 80,5 : 5 = 16,1
B = 4A = 4(16,1) = 64,4 KG = 64.400 GR
13. ..... is a price of something (quality/cost) *pilih quality/cost
Jawaban:
cost krn cost itu biaya sm hal nya dgn price yaitu harga
.
Jawaban:
cost
Penjelasan:
because cost is a price of what is you want to choose and buy it
14. Pada penjualan jam tangan miliknya seharga Rp 792 000, Yuyun mengalami kerugian 12%. Berapakah besar kerugian Yuyun? * 1 point Rp 120 000 Rp 1 200 000 Rp 108 000 Rp 900 000 Sebuah gitar bekas, terjual dengan harga Rp 1 000 000. Jika penjual gitar mengalami kerugian 20%, berapakah harga awal gitar tersebut. * 1 point Rp 1 600 000 Rp 3 000 000 Rp 2 000 000 Rp 4 000 000 A toy with cost price of Rp 120 000 is sold at profit of 40%. Calculate the selling price. * 1 point Rp 162 000 Rp 174 000 Rp 156 000 Rp 168 000 tolong bantuannya
Jawaban:
1) Rp 108.000
2) Soal Tidak Jelas
3) Rp 168.000
15. 1. A mooncake with two egg yolks costs $2 more thana mooncake with one egg yolk. The cost of6 mooncakes with two egg yolks and 5 mooncakeswith one egg yolk is $130.80. Find the cost of amooncake with two egg yolks.
Jawab:
Penjelasan dengan langkah-langkah:
Mooncake with one= x
Mooncake with two =y
From problem, y=x+2
6y+5x=130.80.
6(x+2)+5x=130.80
6x+12+5x=130.80
11x=130.80-12
x=10.8
y=x+2=12.8
16. A cake cost $34.40.A box of bizcuits cost $5.97. what was the total cost of the cake and the box of biscuit?
Jawaban:
$40.37
Penjelasan:
maaf klo salah
Jawaban:
$40.37
Penjelasan:
semoga bermanfaat :v
17. Chiang heng went to a store with $235. a water bottle cost $33, a keyboard cost $34 and a dictionary cost $35. chiang heng spent all of his money to buy seven items. how many of each item did he buy?
bottle (b), keyboard (k), dictionary (d)
[tex]33b+34k+35d=235\\b+k+d=7 \implies 33b+33k+33d=231\\\\k+2d=4[/tex]
bagi kasus :
Jika [tex]k=0,\ d=2[/tex], maka [tex]b=5[/tex]
Jika [tex]k=2,\ d=1[/tex], maka [tex]b=4[/tex]
Jika [tex]k=4,\ d=0[/tex], maka [tex]b=3[/tex]
18. A pear cost x cents. An orange cost y cents less than pear . Find the cost of 4 pears and half a dozen of oranges Please answer with the working
Jawab:
10x-6y
Penjelasan dengan langkah-langkah:
1 Pear = x
1 Orange = x - y
the cost of 4 pears and half a dozen of oranges
a dozen = 12, half a dozen = 6.
4(x) + 6(x-y)
4x + 6x - 6y
= 10x - 6y.
19. 8.The total cost of 2 similar televisions and 5 similar washing machines is $7215.Each washing machine costs $216 less than a television. How much do3 televisions cost?
Jawab:
Penjelasan dengan langkah-langkah:
20. Find the cost of fencing a circle with radius 7cm at rupees 30per m
Jawab:
6.8₹
Penjelasan dengan langkah-langkah:
circumference of cirle = [tex]2\pi r[/tex]
= 2 x 11/7 x 7 cm
= 22/7 x 7
= 22 cm
fencing cost = 30₹ / m
100 cm = 1m
= (22/100) x 30
= (11/50) x 30
= 330/50
= 33/5
= 6 3/5
= 6.8₹
Given:
Radius : 7cmCost of fencing per metre: 30m²ToFind:-
Cost of fencing with radius: 7cmSolutionwithStepbyStepExplanation:-
Circumference of Circle = 2πr
= 2 × 22/7 × 7
= 44cm
1 m = 1000cm =
so, 1000/44 = 0.44m
Hence, The circumference of Circle is 0.44m
Now, we have to find the Cost of Fencing!
Cost of fencing at m² = 30m²
Cost of fencing at 0.44m = ₹13.2
.°. Cost of Fencing at 0.44m is ₹13.2
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