what is the solution to the system of equations?
A. (-7, -6)
B. (-6, -7)
C. (0, 2)
D. (2, -5)

Answer:

Wohho Mark he/she brainliest

Step-by-step explanation:

Answer:

its option 2

step-by-step explanation:

Answer:

When (-1,-4) is substituted into the second equation, the equation  is true.

The ordered pair (-1,-4) is a solution to the system of linear  equations.

When (-1,-4) is substituted into the first equation, the equation is  true.

Step-by-step explanation:

Given

[tex]x - y = 3[/tex]

[tex]7x - y = -3[/tex]

Required

What is true about [tex](x,y) = (-1,-4)[/tex]

To do this, we substitute -1 for x and -4 for y in both equations;

For [tex]x - y = 3[/tex]

[tex]-1 - (-4) = 3[/tex]

[tex]-1 + 4 = 3[/tex]

[tex]3 = 3[/tex]

Hence: [tex](-1,-4)[/tex] is true for [tex]x - y = 3[/tex]

For [tex]7x - y = -3[/tex]

[tex]7(-1) - (-4) = -3[/tex]

[tex]-7 +4 = -3[/tex]

[tex]-3 = -3[/tex]

Hence: [tex](-1,-4)[/tex] is true for [tex]7x - y = -3[/tex]

Answer:  2 7/9

Step-by-step explanation:

too lazy to show the work lol, but hope this helped!

Answer the first is opposite and other is same

Step-by-step explanation:

Answer:

3.3507/ 3.35 (round off)

Step-by-step explanation:

Hope it helps :)

Answer:  False

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Explanation:

To see if the x value is a solution or not, we plug it into the equation given

2x+7 = 30 .... original equation

2*3 + 7 = 30 .... replace every x with 3, since we claim that x = 3

6 + 7 = 30 .... multiply 2 and 3 to get 6

13 = 30 ...... add 6 and 7 to get 13

We get two different numbers on either side, so the last equation is not true. We get a contradiction or false statement. So the original equation is false when x = 3. Therefore, x = 3 is not the solution.

That's why the overall claim is false.

Answer:

No

Step-by-step explanation:

When you plug in the numbers, you get:

9>6+3

9 is equal to 9, not greater than.

Answer:

Yesenia is 0.25t+4 inches tall after August.

Step-by-step explanation:

Given that:

Height of Yesenia in August = 4 feet tall

Growth rate since August = 0.25 inches

Number of months after August = t

According to given statement;

Height after August = Growth rate * Number of months + Height in August

Height after August = 0.25t + 4

Hence,

Yesenia is 0.25t+4 inches tall after August.

Answer:

Answer:

35 square feet

Step-by-step explanation:

Answer:

49i^3u−21i^3x+9x

Step-by-step explanation:

Answer:

[tex]C=69.1^{\circ}[/tex]

Step-by-step explanation:

The Law of Cosines is given as:

[tex]c^2=a^2+b^2-2ab\cos C[/tex].

Plugging in given values, we get:

[tex]16^2=8^2+17^2-2\cdot 8\cdot 17\cdot \cos C,\\\cos C=\frac{-97}{-272},\\C=\arccos(\frac{97}{272}),\\C=\fbox{$69.1^{\circ}$}[/tex].

Step-by-step explanation:

Ummm D

Answer:

Hello, hope you had a good day your, answer is 2.511 Miles.

Step-by-step explanation:

so first lets take 2.7/100 = .027

then take .027 times 93 which gives you 2.511.

Answer:

10 years

Step-by-step explanation:

Step-by-step explanation:

Original x-value = 21

New x-value = 21 * (-1/7) = -3.

Original y-value = 28

New y-value = 28 * (-1/7) = -4.

Hence the coordinates of the new point is (-3,-4).

Answer:

Original value of x-axis =21

New value of x-axis = 21×(-1/7) = -3

Original value of y-axis =28

New value of y-axis = 28×(-1/7) = -4

Hence, the new coordinate is (-3,-4).

Answer:

1/56

Step-by-step explanation:

ploz brainliestt

Answer: he baked 69 muffins

Step-by-step explanation:

Answer:

y=-5x+3

Step-by-step explanation:

5x+y=3

sub 5x from each side

y=-5x+3

Answer:

g=-4

Step-by-step explanation:

Answer: No, this is not a function.

In a function, there can be no overlapping on the y-axis.

Answer:

BANANA CREME PIEEEE

Step-by-step explanation:

the answer is 7

Answer:

Most people when asked, “What is the equation of a line?”, will answer, “y = mx + b”. This is the

equation of a line in what is called slope-intercept form where “m” is the slope and “b” is the yintercept. So, how do you find the equation of a line? There are several different ways that you can find

the equation of a line. I find the equation of a line everytime by following the same three steps:

Step 1: Find the slope of the line.

Step 2: Use the slope to find the y-intercept.

Step 3: Use steps 1 and 2 to write the answer.

I will explain these steps by looking a several examples. Please understand that there are often several

different ways to complete each math problem, but I have found through the years that students are most

successful when the do problems the same way each and every time they attempt the problem. If you

know a different way to find the answer that is great, but I am going to show how to do the problem one

way and use the same technique everytime I see this problem.

Step-by-step explanation:

Answer:

Mike pays the most.

Step-by-step explanation:

Joe pays 30%, given, and Mike pays 2/5, also given. You can covert 2/5. into a percentage by multiply both the numerator and denominator by 20 which gives you 40/100 = 40%. If Mike and Joe combined pay 40%+30% = 70%, then Tony only pays 30%. Therefore Mike would pay the most.

Answer: 73

Step-by-step explanation:

so i took what the angle was for the 107 and subtracted it from 180 because that's always how I did it i'm not positive if its correct but I think that's how you do it since there all the same angles on the bottom so M and Q match and the two top angles match so I think it would end up being 73 sorry if this isn't to much help.

Given:

Amount spent on 2 DVDs = $41.75

Sales tax = $3.15

Coupon = $1.00 off

To find:

The cost of each DVD.

Solution:

Let x be the cost of each DVD.

Then, cost of two DVDs = 2x

Amount spent of 2 DVDs = Cost of 2 DVDs + Sales tax - Coupon discount

[tex]41.75=2x+3.15-1.00[/tex]

[tex]41.75=2x+2.15[/tex]

[tex]41.75-2.15=2x[/tex]

[tex]39.6=2x[/tex]

Divide both sides by 2.

[tex]\dfrac{39.6}{2}=x[/tex]

[tex]19.8=x[/tex]

Therefore, the cost of each DVD is $19.8.