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aksik [14]
4 years ago
9

When x = 1 ; (1) - y = 1

Mathematics
1 answer:
ioda4 years ago
3 0

I don't speak the language; I'm not even sure what language that is. I went to Indonesia in 1991 but all I can say now is "saya mau beli mango."


But math is math. It says "graf"; this is probably making a table to help draw the graph.


It looks like the curve we're trying to graph is


x - y = 2


That's


y = x - 2


That's a fairly straightforward table to make; unfortunately our first entry isn't consistent with the above equation. I'll assume the equation is correct and make a vertical table; that's easier to type:


x y (x,y)

0 -2 (0,-2)

1 -1 (1,-1)

2 0 (2,0)

3 1 (3,1)

4 2 (4,2)

5 3 (5,3)



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Answer:

Option (4)

Step-by-step explanation:

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4 years ago
A shopper purchased 4 tables and 2 chairs for $200 and 2 tables and 7 chairs for $400. What is the cost of each table and each c
I am Lyosha [343]
4t+2c=200
2t+7c=400

I will solve for c in terms of t first
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2c=200-4t
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Then I will substitute this in for c in the second equation to make it single variable
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2t+7(100-2t)=400
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t=25 
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Plug t back into one of the ORIGINAL equations to find the cost of chairs
4(25)+2c=200
100+2c=200
2c=100
c=50
Chairs cost $50 each

Hope this helps! :)


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4 years ago
The expression 3+1/9÷1+1/18 is equal to
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Step-by-step explanation:

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