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mote1985 [20]
3 years ago
6

4) Solve each pair of simultaneous equations.

Mathematics
1 answer:
Mkey [24]3 years ago
7 0
4) a. x+y=1–(1)
y=2x-8—(2)
(2) into (1)
x+(2x-8)=1
3x-8=1
3x=1+8
x=9/3
x=3—(3)
(3) into (2)
y=2(3)-8
y=-2

ans x=3, y=-2

b. x+y=19—(1)
y=5x+1—(2)

(2) into (1)

x+(5x+1)=19
6x+1=19
6x=19-1
x=18/6
x=3—(3)

(3) into (2)

y=5(3)+1
y=16

ans x=3, y=16

c.x+y=-2—(1)
y=x-10—(2)

(2) into (1)

x+(x-10)=-2
2x-10=-2
2x=-2+10
x=8/2
x=4–(3)

(3) into (2)
y=4-10
y=-6

ans x=4, y=-6


5) 3x=y—(1)
x=y-16–(2)

(2) into (1)

3(y-16)=y
3y-48=y
2y=48
y=48/2
y=24–(3)

(3) into (2)

x=24-16
x=8

ans x=8, y=24
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Kamran Company produces various types of fertilizer. No beginning units in process or finished units were on hand on January 1,
Sergeeva-Olga [200]

Answer:

Cost of Goods Manufactured   900,000

Step-by-step explanation:

Kamran Company

Cost of Goods Manufactured.

Total Materials Used  Rs 300,000

Direct Materials = 75% of Rs 300,000=  Rs 225,000

Direct Labor= 60% of 350,000=  Rs 210,000

Prime Cost = 435,000

Factory Overhead

Indirect Materials = 75,000

Indirect Labor = 90,000

Heat, light and power Rs. 115,000

Depreciation 78,000

Factory Taxes 65,000

Repairs and Maintenance 42,000

Cost of Good Available for Manufacture : 900,000

Add opening WIP  --- Nil

Less Closing WIP ---Nil

Cost of Goods Manufactured   900,000

Selling Expenses were Rs. 80,000 general and administrative expenses were Rs. 50,000 are used in making Profit & Loss or the income statement.

Beginning and Ending Finished Goods are used in the Cost of Goods Sold Statement.

4 0
3 years ago
? ( Ellen has 2 quarters 1 dime and 1 nickel how many different amounts of money can you make using 1 ore more of these clubs )
ohaa [14]

the answer to this is nine



7 0
4 years ago
Find the value of x<br><br><br><br><br><br><br><br> diicmabajamnfkwbxjxn
goldenfox [79]
Because the two lines parallel, so we have x+40=3x-10
Or 3x-x=40+10
And 2x=50, so we obtain x=25
That is the answer
8 0
3 years ago
What is the pattern 3.5 to 13
mars1129 [50]
Adding 9.5 every time

4 0
3 years ago
Solve a, b, c, &amp; d please &amp; I will mark you as Brainliest.
laila [671]

Answer:

Step-by-step explanation:

a) -2x-3y=5\\-5x+3y=-40\\-7x=-35\\x=5, y=-5\\\\b)5x+6y=-14\\x-2y=10\\Considering\ equation\ 2,\\3(x-2y)=3(10)\\3x-6y=30\\Hence,\\5x+6y=-14\\3x-6y=30\\8x=16\\x=2, y=-4\\\\c) -3x+3y=21\\-x-5y=-17\\Considering\ equation\ 2,\\3(-x-5y)=3(-17)\\-3x-15y=-51\\Hence, subtracting\ both\ the\ equations\ we\ get,\\-3x+3y=21\\3x+15y=51\\18y=72\\y=4, x=-3

d) Let the cost of one group lesson be x and one private lesson be y

12x+2y=110\\10x+3y=125\\By\ multiplying\ the\ first\ equation\ with\ -1.5\ in\ this\ system\ we\ get,\\-1.5(12x+2y)=-1.5(110)\\-18x-3y=-165\\Hence,\ by\ adding\ both\ the\ equations\ we\ get,\\-18x-3y=-165\\10x+3y=125\\-8x=-40\\x=5,y=25

8 0
4 years ago
Read 2 more answers
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