1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoray [572]
3 years ago
15

1) 2x – y = 1

Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0

Answer:

1) (2, 3)

2) (2, -5).

Step-by-step explanation:

2x – y = 1

2x +2y = 10   Subtract to eliminate  the 2x:

2x - 2x - y - 2y = 1  - 10

-3y = -9

y = 3.

Plug this into the first equation:

2x - 3 = 1

2x = 4

x = 2.

2)

5x – y =15

x + y = -3     Adding to eliminate y:

5x + x - y + y = 15 + -3

6x = 12

x = 2

Plug this into the first equation:

5(2) - y = 15

-y = 15 - 10 = 5

y = -5.

You might be interested in
Carson can choose one vehicle (car or truck), one color (blue, red, or silver), and one type of transmission (standard or automa
77julia77 [94]

Answer:

12 possible outcomes

Step-by-step explanation:

Choosing 1 vehicle from 2 = 2C1 = 2

Choosing 1 color from 3 = 3C1 = 3

Choosing 1 type from 2 = 2C1 = 2

Number of possible outcomes :

2C1 * 3C1 * 2C1

2 * 3 * 2

= 12 different possible outcomes

5 0
3 years ago
If 0.5% of a number is 250, find the number
kaheart [24]

0.5% or 1/2% of say "x" is 250, whilst "x" is the 100%.

\begin{array}{ccll} \%&amount\\ \cline{1-2} \frac{1}{2}&250\\[1em] 100&x \end{array}\implies \cfrac{~~ \frac{1}{2}~~}{100}=\cfrac{250}{x}\implies \cfrac{1}{200}=\cfrac{250}{x}\implies x = 50000

6 0
2 years ago
Read 2 more answers
There is a spinner with 14 equal areas, numbered 1 through 14. If the spinner is spun one time, what is the probability that the
vfiekz [6]

Answer:

Probability that the result is a multiple of 4 or a multiple of 3=  0.428

Step-by-step explanation:

The spinner is divided into 14 equal areas.

Probability of an event=\frac{number of favourable outcomes}{total number of outcomes}

For favourable events,result should be a multiple of 3 or 4.

All the possible outcomes are=1,2,3,4,5,6,7,8,9,10,11,12,13,14

  • Multiples of 3=3,6,9,12
  • Multiples of 4=4,8,12

Hence the favourable outcomes are=3,4,6,8,9,12

Number of favourable outcomes=6

Total number of outcomes=14

Probability=\frac{6}{14}

                 =0.428

5 0
3 years ago
This is really hard please help
attashe74 [19]

Answer:

2/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Cd + ed = m solve for d
lakkis [162]

Answer:

677

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • A plane traveled 1176 miles to Phoenix and back. The trip there was with the wind. It took 14 hours. The trip back was into the
    8·1 answer
  • Does a equation only produces 1 solution
    12·1 answer
  • Please solve this problem 98x24(100-2)x24
    7·2 answers
  • One half of Heather's age two years ago from now plus one-third of her age three years ago is twenty years. How old is she now?
    15·1 answer
  • Claudia's father is 7 times as old as Claudia. 20 years from now, Claudia will be 1/2 as old as her father. How old is Claudia's
    6·1 answer
  • What is the place value of the 2 in 6,025
    11·1 answer
  • What is the distance between points L(5,7) and M(3,-8)​
    13·1 answer
  • Find the perimeter of triangle ABC
    9·1 answer
  • Help! i just need the answers. maybe some explanations would be good too :)
    9·1 answer
  • The price of shoes was reduced 20% if the original price of the shoes were $44, what is the sale price of the shoes?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!