Somebody pleaseee help :(

The table can be used to determine the solution of equations, 2x − 2y = 6 and 4x + 4y = 28.

natta225 [31]

we have

$2x-2y=6$ ------> equation $1$

$4x+4y=28$ ------> equation $2$

Multiply by $2$ the equation $1$

$4x-4y=12$ ------> equation $3$

Sum equation $2$ and equation $3$

$4x+4y=28\\ 4x-4y=12\\ ------\\ 8x=40\\ x=40/8\\ x=5$

Substitute the value of x in the equation $2$

$4x+4y=28$

$4*5+4y=28\\ 4y=28-20\\ 4y=8\\ y=8/4\\y=2$

therefore

the answer is the option B

$(5,2)$

7 0

3 years ago

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An item is priced at $13.26. If the sales tax is 5%, what does the item cost including sales tax?

mezya [45]

Answer:

13.92$

Step-by-step explanation:

13.26 times .05 (sales tax)

.66 + 13.26 = 13.92

7 0

3 years ago

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Brain was asked to round 4.44 to the nearest tenth and said it was 4.5 Is he correct?Why or Why not?

Annette [7]

Brian (I think you meant Brian haha..) is incorrect because the tenth place is the number right after the decimal which is a 4. If you are rounding to the tenth place that means that you have to look at the number to the right of that, which is 4. 5 and up means you round up and 4 and down means you round down. This is a 4, so you keep the 4 after the decimal and get rid of the last 4. Therefore, when rounded it would be: 4.4.
Hope this helped! Good luck! :)

5 0

3 years ago

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Can someone help me with B? I’m really bad at this kind of stuff. I need help ASAP

Vinil7 [7]

Answer:

D = .44P

Step-by-step explanation:

We need to find the slope of the line

m = (y2-y1)/ (x2-x1)

Using two points

m = (22-4.4) /(50-10)