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anastassius [24]
3 years ago
7

Answer this please and the first person to do it will get Branilest !! Don’t forget to explain

Mathematics
1 answer:
Mandarinka [93]3 years ago
7 0

Answer:

3g + 9g =  - 48 \\ 12g =  - 48 \\ g =  -  \frac{48}{12}  \\ g =  - 4 \\  \\   - 4m - 6m - 30 =  - 80 \\  - 4m - 6m =  - 80 + 30 \\  - 10m =  - 110 \\ m =  \frac{ - 110}{ - 10}  \\ m = 11 \\  \\ 12 =  - 8n - 24 - 4n \\ 12 + 24 =  - 8n - 4n \\ 36 =  - 12n \\ n =  \frac{36}{ - 12}  \\ n =  - 3 \\  \\ 5y + 2y +  \frac{1}{2}  =  -  \frac{1}{2 }  \\ 5y + 2y =   - \frac{1}{2}   -  \frac{1}{2}  \\ 7y =  - 1 \\ y =  -  \frac{1}{7}  \\  \\ 22x + 0.25 - 16x = 0.85 \\ 22x - 16x = 0.85 - 0.25 \\ 6x = 0.6 \\  x =  \frac{0.6}{6}  \\ x = 0.1 \\  \\ 17k + 6k + 11 = 80 \\ 17k + 6k = 80 - 11 \\ 23k = 69 \\ k = 3

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sveticcg [70]
<span>We want to check how many intersections line A and B have, that is, we want to check how many common solutions do these equations have:
</span>
i) 2x + 2y = 8

ii) x + y = 4
<span>
use equation ii) to write y in terms of x as : y=4-x, 

substitute y =4-x in equation i):

</span>2x + 2y = 8
2x + 2(4-x) = 8
<span>2x+8-2x=8
8=8

this is always true, which means the equations have infinitely many common solutions.


Answer: </span><span>There are infinitely many solutions.</span><span>

</span>
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3 years ago
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