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Scrat [10]
3 years ago
7

I need help solving this thing.

Mathematics
1 answer:
blondinia [14]3 years ago
6 0

Answer:

x=-3  y=-1

(-3,-1)

Step-by-step explanation:

-1(2x-7y=1)

-7x-7y=28

-2x+7y=-1

-9x=27

x=-3

-2*-3-7y=1

y=-1

You might be interested in
If I buy a stereo for $245 and this includes GST of 10%, what is the pre-GST price?
Ivan

Answer:  $222.73

===========================================

Work Shown:

x = pre-GST price

10% of x = 0.10x = tax amount

x + 0.10x = 1.10x = post-GST price = 245

1.10x = 245

x = 245/1.10

x = 222.7272 approximately

x = 222.73 is the price before tax.

------------

Check:

10% of 222.73 = 0.10*222.73 = 22.273 = 22.27

The tax amount ($22.27) is added to the pre-GST price to get

22.27+222.73 = 245

which matches the post-GST price mentioned.

The answer is confirmed.

Or another way to confirm the answer is to calculate this

1.10*222.73 = 245.003 = 245

6 0
3 years ago
Read 2 more answers
Need help will give thanks and brainliest
Lina20 [59]

Answer : y = 11x + 24

7 0
3 years ago
Read 2 more answers
Hamburger heaven is having a lunch special where customers buy one 3/4 pounds cheese burger and get one free if they set aside 1
Yuri [45]

Answer:

49

Step-by-step explanation:

49 hamburguers (of 3/4 pound)

Step-by-step explanation:

3/4 pound is equal to 0.75 pound

37 1/3 pounds of meat is equal to

37 + 1/3 pound =  37.3333 pounds

To find how much hamburguers can be made, we need to divide

37.3333 pounds/ 0.75 pounds

37.3333 pounds/ 0.75 pounds = 49.777777

(We need to round to the lowest number)

This means that 49 hamburguers could be made

Plz mark brainliest

5 0
3 years ago
2^3 + 3(9-5) plz help
Romashka [77]

Answer:

The answer is 20

Step-by-step explanation:

6 0
3 years ago
This graph shows the water level in a bathtub, in inches, overtime (in minutes). what situation could match the graph?
user100 [1]

Answer:

Alison turns on the water and allows it to run in the tub for a few minutes. She then turns the water off while she runs to answer the front door. Alison comes back and allows water to run into the tub for a couple more minutes before she takes a short bath. After the bath, Alison allows the water to completely drain from the tub.

Step-by-step explanation:

took the k12 test hope this helps

4 0
3 years ago
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