Need help with solving this equation

Expressions can be expressed as equations or as inequalities.

The difference is that the variables in a system of equation have one solution each, while in a system of inequalities, the variables have a range of values.

Let the system of equation be:

[tex]\mathbf{ax + by = c}[/tex]

[tex]\mathbf{dx + ey = f}[/tex]

Let the system of inequality be:

[tex]\mathbf{ax + by < c}[/tex]

[tex]\mathbf{dx + ey > f}[/tex]

Both systems can be solved using the same method, such as: graphs, substitution and elimination.

However, the difference is that:

In a system of equation, the variables can have one solution each, while in a system of inequalities, the variables have a range of values.

Read more about system of equations and inequalities at:

https://brainly.com/question/11476486

Answer:

about 3.6

Step-by-step explanation:

pythagorean theorem

sqrt 13

Answer:

(images to help with graph are below)

Step-by-step explanation:

okay! so once you get the hang of this, it is super super easy.

so the y-intercept is a point on that long line going up and down on the graph. it shows where the line intersects the middle!

so here it says that the y-intercept (y-int for short) is 2. so we will simply mark a little point on 2.

now the slope. the slope is -4. this can be written as -4/1. the -4 is on the top so i represents the y values. and the 1 is on the bottom so it represents the x values.

we know that when graphing, x goes from side to side and y goes up and down.

if an x value is positive you move it to the right (forwards), if it is negative you move it to the left (backwards). if a y value is positive you move it upwards, if it is negative you move it downwards. so we want to start graphing with our x.

The x value is 1 (because it is in the bottom of the slope! -4/1!). So we will move one point from the y-int (the point we marked).

Now for the y values. The y value is -4 (again, taken from the -4/1. the top number is the y value). FROM THE PLACE WE LEFT OFF FOR THE X VALUES (we left off at point (1,2) because we moved it one to the right!), we will move 4 points DOWN because it is negative (-4). Mark this place with a dot!

We should now have the points (0,2) and (1,-2) marked with a dot. draw a line through the 2 dots! this is ur finished graph. notice how the line intersects the middle on the y-intercept!! that will always happen.

Lastly, the equation! the formula for slope intercept form is y=mx+b

m is always your slope. b is your y-int. and y and x stay blank (for now. in the future you might use those spots). so simply fill in m and b!

the slope is -4. so m = -4

the y-int is 2. so b = 2

the finished equation should look like this:

y = -4x + 2

I hope this helped !!!

Answer:

2 Miles per hour

Step-by-step explanation:

velocity (speed) formula is distance/time.

In this case, 6/3=2

Answer:

-1

Step-by-step explanation:

you do 1/1 which is 1. because the line is negative, the answer is -1

Answer:X=7

Step-by-step explanation:

Answer:

zp= 7,and py= 9

Step-by-step explanation

zp=7                  

(2)(2)+5

(2)(2)+5

py=9      

(4)(4)−9

(4)(4)−9

=7

Answer:

hope it helps

Step-by-step explanation:

...........

Answer:

the correct answer would be the 2nd one !! please make me most brainlessly!!!

Answer:

x = 6

Step-by-step explanation:

5x-3 = 2x+15

5x-2x-3 = 15

5x-2x = 15+3

3x = 15+3

3x = 18

[tex] \frac{3x}{3} = \frac{18}{ 3} [/tex]

[tex]x = 6[/tex]

Answer:

sorry bro I didn't understand

Answer:

the answer to you question is A

Answer:

Step-by-step explanation:

Multiply -3 for x and for 5

-3x-15=27

When you have this type of equation the first thing you do is take off the parentesis

Then you pass the 15 to the other side and you get -3x= 27 +15 . After that you divide that for -3 and you get the x . In this case x= -14

Sorry if the english is bad, i hope this helps

Answer:

2.0 , 2/1.

1.35 , 1  7/20.

1.52, 1 13/25

0.0003, 3/10000

0.0045, 9/2000

Step-by-step explanation:

1.35 =  1 35/100 = 1 7/20

1.52 = 1 52/100 = 1 13/25

0.0045 = 45/10000 = 1 9/2000.

Answer:

i cant choose any that applies to this question because there is no picture added to it and there are no choices to choose from. If i were to solve it though, it would be; yes, he will save enough money for his vacation.

Step-by-step explanation:

I know he would have enough--and in this case more than enough, because since he's planning to save $30 for a whole year just for $50, when he could simply make $60--which is in fact more than needed for his goal-- in just 2 months. If he were to stick with his plan though, he'd make $360. I got that by multiplying 30 by 12.

Answer:

its 1 like actually its 1

Step-by-step explanation:

Answer:

48.3

Step-by-step explanation:

6.9 times 7= 48.3

Answer:

x ÷ 8

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

Assuming that the question is asking for -1 to be plugged in as x

4(-1)-3≤5

-4-3≤5

-7≤5

Answer:

slope= -1/5

y-intercept=7

Step-by-step explanation:

y=mx+b is a linear equation

m=slope

b=y-intercept

Answer: 30 cm

Step-by-step explanation: Take note that ^2 means to the second power.

a^2 + b^2 = c^2 (hypotenuse)

18^2 + 24^2 = c^2

324 + 576 = c^2

900 = c^2

To find the length of c you have to find teh square root of 900.

√c^2 = √900

c = 30

The length of the hypotenuse is 30 cm!

Hope this helped!

Answer:

4

Step-by-step explanation:

4^2=8 8^2=64

4^3=64

Answer:

its D   7 2/5

Step-by-step explanation:

Answer:

Step-by-step explanation:

your mom

Answer:

9. 5

10. 3

11. 1

12. 7

13. 48

14. 24

15. 9

16. 6

Answer:

-3 (-6)+1

18 +1

19

-3 (-2) +1

6 +1

7

-3(0)+1

0+1

1

-3(2) +1

-6 +1

-5

-3(6) +1

-18 +1

-17

Step-by-step explanation:

you plug in the numbers for x into the equation and solve, and that's the value that goes into the box below the number you just plugged in

Answer:

1.close

2.fraction

3.word

5.nuimarator

Answer:

0 (I think)

Step-by-step explanation:

(1,6) (3,-6)

X1 Y1. X2 Y2

-6-6= 0

3-1=2

0/2= 0

Answer:

y=-12/2x + -6

Step-by-step explanation:

m= rise/run = y2-y1/x2-x1

m=  -6 - 6 / 3 - 1    

m= rise/run  -12/2

Answer:

(x+5) (x-3)

Step-by-step explanation:

5 times -3= -15

5 + -3 = 2

Answer:

$2 + $5p = $13.25

Step-by-step explanation:

Given that:

Initial purchase = $2

Pound of sliced turkey = p

Cost per pound of sliced turkey = 5$

Total amount spent = $13.25

Jennifers purchase from grocery store :

Initial purchase + (pound of sliced turkey * cost or pound) = total amount spent

$2 + $5p = $13.25