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
nalin [4]
2 years ago
13

Abriana claims that the solution to the system of linear equations y = 2x – 1 and –12x + 3y = 9 is (–2, –5). Select all methods

that could be used to prove Paige's claim.
Mathematics
1 answer:
EleoNora [17]2 years ago
7 0

Answer:

Substitution method can be used

Step-by-step explanation:

Given the system of equations

y = 2x-1 ....1

-12x + 3y = 9 ....2

The best method to use id the substitution method

Substitute equation 1 into 2;

From 2;

-12x + 3y = 9

-4x + y = 3

-4x + 2x-1 = 3

-2x -1 = 3

-2x = 3+1

-2X = 4

x = -4/2

x = -2

Substitute x = -2 into 1

y = 2x - 1

y = 2(-2)-1

y = -4-1

y = -5

Hence the solution to the system of equation is (-2, -5)

You might be interested in
A population of deer in an area is 2000 and is decreasing at a rate of 15% per year. At this rate what will the deer population
Pepsi [2]
2000 × 15% = 300
300 × 5 = 1500
2000 - 1500 = 500 population after 5 years
4 0
2 years ago
The current of a river is 4 miles per hour. A boat travels to a point 30 miles upstream and back in 4 hours. What is the speed o
Maurinko [17]
16 mph is the answer I found after doing the work

7 0
2 years ago
Marco is playing a game with a standard deck of cards. The first person to select a heart from the deck without looking wins. Wh
mestny [16]

Answer:

What is the theoretical probability that Marco will choose a card with a heart on it?  It will be 1/4

What is the theoretical probability that Marco will choose a card without a heart on it?  the answer to this is 3/4

Step-by-step explanation:

7 0
3 years ago
Determine the y-intercept of the following equation.<br> (x+5)(x - 1) = y
Darya [45]

Answer: Should be -5

Step-by-step explanation:

3 0
3 years ago
ricardo purchased a bunk bed for his children fora sale price of $276.25. The sale price was 65% of the original price. Calculat
nikklg [1K]

Use the formula S=P-PD

S is sale price, original price is P, and PD is discounted percent,

276.25=P-P(.65), I turned the percent into a decimal.

276.25=P(1-.65)

276.25=P(1-.65)

276.25=P(.35)

Now cross multiply.

\frac{276.26}{.35}=\frac{P(.35)}{.35}\\\\P=\frac{276.26}{.35}=789.31

Hope this helps, now you know the answer and how to do it. Stay healthy and safe and HAVE A BLESSED AND WONDERFUL DAY! :-)  

- Cutiepatutie ☺❀❤

6 0
3 years ago
Other questions:
  • Evaluate (–1)8 + (–1)7 + –16 + –14 – (–1)2.
    5·2 answers
  • Lines s and t are perpendicular If slope of line s is 5 what is the slope of line t
    10·1 answer
  • Ina a class of 30 children,60% can swim. how many children cannot swim?
    7·1 answer
  • A circle circumference is approximately 76 cm. estimate the radius diameter and area of the circle
    8·1 answer
  • What do you need to know?
    14·1 answer
  • Translate the equation into a verbal sentence. 2a = 7a - b
    7·1 answer
  • Simplify the expression.<br> - (m + 6n - 10)
    14·2 answers
  • type the correct answer in the box. The formula for the volume, V, of a cone having the radius, r, and the height, h, is shown b
    14·2 answers
  • The super cool X1400 will cost 60 per month to operate, while the Efficient Energy X2000 costs only $40 per month to operate?
    12·1 answer
  • If m ACD=100 degree,then m ECB=[?]
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!