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Shalnov [3]
1 year ago
8

How many solutions would the system of equations y=2x+2 and y=6x+2 have

Mathematics
2 answers:
Llana [10]1 year ago
8 0

Answer:

One solution

Step-by-step explanation:

Set the equations equal to each other and solve for x:

y=2x+2,y=6x+2\\\\2x+2=6x+2\\2=4x+2\\0=4x\\x=0

Therefore, there is only one solution

pickupchik [31]1 year ago
7 0

Answer:

Only one solution

Step-by-step explanation:

y = 2x + 2 -------------(I)

y = 6x + 2 --------------(II)

Substitute y =6x + 2 in equation (I)

6x + 2 = 2x +2

       6x = 2x + 2 - 2

       6x = 2x

6x - 2x = 0

       4x = 0

x = 0

Plugin x = 0 in equation (I)

y = 2*0 +2

y = 2

Solution: (0,2)

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777dan777 [17]

Answer:

6x <u>></u><u> </u> 3+4(2x -1)

6x <u>></u> 3+ 8x - 4

6x <u>></u> (-1) + 8x

6x - 6x <u>></u><u> </u> (-1) + 8x - 6x

subtracting 6x from both sides

0 <u>></u> 2x - 1

adding +1 on both sides

1 <u>></u> 2x

1/2 <u>></u> x

x <u><</u> 1/2

5 0
2 years ago
Read 2 more answers
Suppose that the halflife of a substance is 250 years . If there were ir 100 the substance , (a) give an exponential model for t
IgorLugansk [536]
After 500 years one would have N nuclei of the original substance.

N = 100 * exp ( -ln(4) ) = 25

LOL.

I guess it is exp( - lamda * t)

Lamda, the decay constant is the ln(2) over the half life.

So we get exp( -ln(2)/250 * 500) or exp ( -ln(4) )
690 viewsView 1 Upvoter
Related Questions (More Answers Below)
5 0
2 years ago
Find next two terms. 10, -40, 160, ?,?
bija089 [108]

Answer: -640, 2560

each number in the sequence is multiplied by -4 to get the next answer

3 0
2 years ago
Evaluate C(3, 3)<br><br> 1<br> 6<br> 24
Anestetic [448]

Answer:

1

Step-by-step explanation:

Using the definition

nC_{r} = \frac{n!}{r!(n-r)!}

where n! = n(n - 1)(n - 2) × 3 × 2 × 1

and 0! = 1

3C_{3}

= \frac{3!}{3!(3 - 3)!}

= \frac{3!}{3!(0!)}

= \frac{3!}{3!} = 1

4 0
3 years ago
Solve linear equations 1/2x+y=-6 and y=3/5x+5
ser-zykov [4K]
1/2x+y=-6   y=3/5x+5

substitute
1/2x+3/5x+5=-6

11/10x+5=-6

11/10x=-11
11x=-110
x=-10
5 0
2 years ago
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