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Juliette [100K]
3 years ago
11

I need help with this!

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0

Answer:

(-7, -8)

Step-by-step explanation:

To start we have to isolate a variable to get an equation for it.

Let's get an equation for x from the first equation:

x - 2y = 9

x = 2y + 9

Now that we know what x is in terms of y, lets plug it into our second equation:

3(2y + 9) - 5y = 19

6y + 27 - 5y = 19

y + 27 = 19

y = -8

Now that we know what y equals, let's plug it into our first equation and solve for x:

x - 2(-8) = 9

x + 16 = 9

x = -7

Now that we have x and y, we make our ordered pair, in terms of (x, y):

(-7, -8)

Hope this helps!

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You spent $88.50 at Target. You happen to have a $25 gift card from your birthday. If the sales tax rate was 6.5%, how much did
Nonamiya [84]

Answer:

67.6275

Step-by-step explanation:

ok so 88.5-25=63.50

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63.50+4.1275=67.6275

3 0
4 years ago
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(03.02 MC)The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:
IgorLugansk [536]

Answer:

Juan

Step-by-step explanation:

The number of pages that Ana, Hillary, Roger, and Juan can read in a day is shown below:

For Ana

Ana read 15% of her 46-page book.

= 15% × 46 pages

= 6.9 pages

For Hillary

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= 11% × 72 pages

= 7.92 pages

For Roger

Roger read 12% of his 68-page book.

= 12% × 68 pages

= 8.16 pages

For Juan

Juan read 14% of his 69-page book.

= 14% × 69 pages

= 9.66 pages

The person who can read greatest number of pages in a day also means the person who read the highest number of pages in a day.

From the calculation above, that person in JUAN because she can read 9.66 pages of her book in one day.

5 0
3 years ago
Which of the sets of ordered pairs represents a function.
Lana71 [14]

So what makes a function a function is that each input (x) only has one output (y).


Set A is not a function because when x = 2, y = -2 and 3.


Set B is not a function because when x = 9, y = 3 and -3.



In short, the correct option is "Neither A nor B".

5 0
3 years ago
Please Help Me. Brainliest :3
Lina20 [59]

I beleive that x would equal 50

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3 years ago
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Mariana [72]
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