consider the following systems of equations y=3x-7  y-3x=5  what can you conclude about the system of equations

Answers

Answer 1
Answer: Take the second equation [ y - 3x= 5 ] and add 3x to each side:  [ y = 3x + 5 ].

Now you can see that the graphs of both equations have the same slopes.
This tells you clearly that their graphs are parallel lines which never intersect.
Therefore, the 'system' of equations has no solution.

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PLEASE HELP I'LL GIVE BEAINLIEST!!!!! ​

Answers

Answer:

9 2/3

Step-by-step explanation:

50=6a-8

+8     +8

58=6a

/6    /6

9  2/3=a

Vlad spent 20 minutes on his history homework and then completely solved x math problems that each took 2 minutes to complete. What is the equation that can be used to find the value of y, the total time that Vlad spent on his homework, and what are the constraints on the values of x and y?y=2x+20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20.
y=2x+20; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20.
y=20x+2; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20.
y=20x +2; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20.

Answers

Answer:

The answer is A. y = 2x + 20; x is any integer greater than or equal to, 0 and y is any integer greater than or equal to 20

Step-by-step explanation:

You can buy 2 songs on I-Tunes for $ 2.58, or 3 songs for $ 3.87. Write an equation to show the relationship between the number of songs, s, and the total cost, c.

Answers

Answer:

for the first pack, 1 Itune song would be 1.29 and for the other pack, for one Itune song would be 1.29 also, the relationship between these problem is that they are the same price for 1 song. The total cost for 1 is $1.29 hope this helps, have a great day! ツ

Step-by-step explanation:

0
What is the value of 12?

Answers

Answer:

1

Step-by-step explanation:

[remember: any number raised to the power of 0 is 1]

∴ 12^0 = 1

hope it helps you!!

12 0 has the value of 1

If f(x) = 2x3 – 2, what is the value of f(2)?

Answers

Answer:

f(2) = 14

Step-by-step explanation:

Step 1: Define

f(x) = 2x³ - 2

f(2) = x = 2

Step 2: Substitute and evaluate

f(2) = 2(2)³ - 2

f(2) = 2(8) - 2

f(2) = 16 - 2

f(2) = 14

Three fourths of a number p less subtracted by 2 is 5 sixths of a number r plus 5

Answers

Three fourths of a number p less subtracted by 2 is 5 sixths of a number r plus 5

3/4 of  p subtracted by 2 is 5/6 of a r plus 5

3/4 of p - 2 is 5/6 of r + 5

(3)/(4) p-2= (5)/(6) r+5   <--- answer?

(3)/(4) p= (5)/(6) r+7    

(3p)/(4) = (5r)/(6) +7

(3p)/(4)* (6)/(5r)  = 7

(18p)/(20r) = 7

(9p)/(10r) = 7

(p)/(r) = 7* (10)/(9)

(p)/(r) = (70)/(9)   <-- answer?

Hope this helps