x + y = -7
-x+ 4y = 17
X=
y =

Answers

Answer 1

Answer:

x= -9,  y= 2

Step-by-step explanation:

5y=10

y=2

x+2=-7

x=-9

Answer 2

Answer:

x=-9y=2

Step-by-step explanation:

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

[tex] - x + 4y = 17[/tex]

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

[tex]x = 4y - 17[/tex]

[tex]y = - 7 - 4y + 17[/tex]

[tex]5y = 10 \\ y = 2[/tex]

[tex]x = 4y - 17 = 4 \times 2 - 17 = 8 - 17 = -9 \\ x = -9[/tex]


Related Questions

Find the percent decrease. Round to the nearest percent.
From 94°F to 70°F
The percent decrease is%

Answers

Answer:

-25.53%

Step-by-step explanation:

For the piecewise function, find the specified function value
if xs1,
(2x-4, if x > 1
f (x) = (-5,
a) Find f(1) =
(1) b) Find f(5) =
(1)

Answers

Answer:

f(1) = - 5, f(5) = 6

Step-by-step explanation:

(a)

f(1) with x = 1 is in the interval x ≤ 1 , thus

f(1) = - 5

(b)

f(5) with x = 5 is in the interval x > 1 , thus f(x) = 2x - 4 , so

f(5) = 2(5) - 4 = 10 - 4 = 6

An item has a listed price of $70. if the sales tax sales is 8% , how much is the sales tax ( in dollars ) ?

Answers

Answer:

$5.60

Step-by-step explanation:

$70 ⋅ 0.08 = $5.60

(I could be wrong. Sorry if I am. Don't get mad at me)

Hope I help :)

Please consider Brainliest :)

plz ive been stuck on this for an hour plzzz help?​

Answers

Answer:

2x<10

Step-by-step explanation:

Try to figure it out from there

Hint: division

Answer:

[tex]x < 5[/tex]

Look at attachment for graph.

Step-by-step explanation:

Solving the inequality just has us isolate the x value.

[tex]-9 + 2x < 1[/tex]

Add 9 to both sides to cancel out -9

[tex]2x < 10[/tex]

Finally, divide both sides by 2 to get rid of the 2 on the x.

[tex]x < 5[/tex]

To graph this, you will just add an open circle on 5 and shade every number to the left of it.

y = - 2x + 4 missing value

Answers

Answer:

Y= -2x+4

X= 1: -2(1) +4 = 2

X= 2: -2(2)+4= 0

X= 3: -2(3)+4= -2

Step-by-step explanation:

espero que esto ayude

please offering 8 points and brainilest awnser​

Answers

Answer: 2,6,10,14

Step-by-step explanation:

Answer:

2,6,10,14

Step-by-step explanation:

2,6,10,14 because X is input and the Y column is output

Which of the following are not polynomials?

Answers

D and c would be the answers


Hope this helps

Point JJ is located at (5,-3)(5,−3) on the coordinate plane. Point JJ is reflected over the yy-axis to create point J'J ′ . Point J'J ′ is then reflected over the xx-axis to create point J''J ′′ . What ordered pair describes the location of J''?J ′′ ?

Answers

Answer:

[tex]J" = (-5,3)[/tex]

Step-by-step explanation:

Given

[tex]J = (5,-3)[/tex]

Reflections: over y and x axis to create J"

Required

Determine J"

When reflected over y axis:

[tex]J'(x,y) = J(-x,y)[/tex]

We have that:

[tex]J = (5,-3)[/tex]

So:

[tex]J(-x,y) = (-5,-3)[/tex]

Hence

[tex]J' = (-5,-3)[/tex]

When reflected over x axis:

[tex]J"(x,y) = J'(x,-y)[/tex]

We have that:

[tex]J' = (-5,-3)[/tex]

So:

[tex]J(x,-y) = (-5,3)[/tex]

Hence

[tex]J" = (-5,3)[/tex]

Answer:

(5,3)

Step-by-step explanation:

I put it in and it came out right so

Help pls
2y - 3.5 = 6.5

Answers

Answer:

y = 5

Step-by-step explanation:

2y - 3.5 = 6.5

Add 3.5 to both sides.

2y = 10

Divide both sides by 2.

y = 5

(5y^4 + 2y^5)(-3y^6 + 7y^8)

Answers

Answer:

14[tex]y^2+35y^12-6y^11-15y^10[/tex]

Step-by-step explanation:

Simply by distributing 5y^4 to the first two terms and then distribute 2y^5 to the same two terms and then add the like terms.

What should I type in, in the box

Answers

Answer:

No

Step-by-step explanation: No, because each input is not compared to exactly one output. The ordered pair that would need to be removed is (5,7) or (5,8). This works because it means that one of the inputs got taken away and can go to exactly one output.

Please help I’ll give brainiest!!

Answers

Answer:

[tex]A.[/tex] [tex]y = \frac{5}{2}x + 1[/tex]

Step-by-step explanation:

Because if look closely at the top arrow it lines on 5 and 2 so that would be [tex]\frac{5}{2}[/tex] and then + 1 because it is also on the 1.

Hope I Helped! :)

Solve the equation and show your work. M+7-5=20

Answers

Answer

18

Step-by-step explanation:

m+7−5=20

Step 1: Simplify both sides of the equation.

m+7−5=20

m+7+−5=20

(m)+(7+−5)=20(Combine Like Terms)

m+2=20

m+2=20

Step 2: Subtract 2 from both sides.

m+2−2=20−2

m=18

Answer:

m=18

I thought of a number, multiplied it by 2 1/2, divided the result by 1 1/5, subtracted 7/18 from it, and got 1 5/6. What was my number?

Answers

1 and 1/15

Work backwards, so add 7/18 to 1 5/6 first (I'm gonna add them in improper fraction form to make it easier) and you get 40/18 which is 20/9
Then multiply by 1 1/5 (or 6/5) to get 120/45 which simplifies to 8/3
Then divide by 2 1/2, or 5/2, which means you multiply by the reciprocal (2/5)
8/3 times 2/5 equals 16/15 or 1 1/15

Answer:

1 1/15

Step-by-step explanation:

Thanks to leafdapple18

Angles 3 and 5 are what type of angle pair?

Answers

Answer:

interior opposite angles

Step-by-step explanation:

they are inside of the shape but on opposite sides (and i did this freshman year)

Answer:

alternate interior angles

Step-by-step explanation:

∠ 3 and ∠ 5 are alternate interior angles.

These angles are on the opposite ( alternate ) sides of the transversal and are in between ( in the interior ) of the parallel lines.

A line is represented by the equation y = 3x
A The y-intercept is 7.
7. Which of the following statements about the line is TRUE?
B. The line has a positive slope.
C. The point (1,4) lies on the line.
D. This line is parallel to the line whose equation is y - 2x - 7.

Answers

Answer:

B

Step-by-step explanation:

the line has a positive slope. you can tell by comparing the equation of the line to y=MX+c where m=slope= coefficient of x.

In this case the coefficient of x is positive 3.

-4<-2(3x+9)+5<1 Please help

Answers

Answer: if ur looking for interval notation its (-7/3,-3/2) ; if ur solving for x then its -7/3<x<-3/2

Step-by-step explanation:

In ΔNOP, the measure of ∠P=90°, PN = 34 feet, and OP = 40 feet. Find the measure of ∠O to the nearest degree.

Answers

Answer:

40°

Step-by-step explanation:

7x=33 x= simplify your answer please

Answers

Answer:

Simplifying

7x = 33

Solving

7x = 33

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '7'.

x = 4.714285714

Simplifying

x = 4.714285714

Step-by-step explanation:

7x = 33

divide both sides by 7

x = 33/7

this fraction cannot be simplified so you can either leave it as

x=33/7

or

simplify to 4.71428571429

or

simplify the decimal to 4.7

reflect across the line x=-3​

Answers

Answer:

w 2,3 s2,1 p4,-2 r5,-1

Step-by-step explanation:

is simple you just have to swish the points to the other side to show a reflection

If you think teachers are annoying and when the bell goes off then u decide to leave but they say "the bell dont dismiss you i do" and you say what is it for then then you get sent to the office first to answere gets brainliest

Answers

Answer:

Bro I don't know. Maybe that teacher needs to pull that stick out of their butt.

Step-by-step explanation:

ikr man total bs they in sum

Solve the inequality.
y - (-5) < 7

Answers

Answer:

y > 2

Step-by-step explanation:

a double negative is basically a + sign, so its y + 5> 7, and we want Y alone so we subract 5 from 7 to get Y > 2

Answer:

[tex]y < 2[/tex]

Step-by-step explanation:

[tex]\begin{aligned}y-(-5)+(-5)&< 7+(-5)\\y& <7-5\\y&< 2\\\text{or}\\y-(-5) &= y+5\\\therefore\,y+5& <7\\y+5-5 &<7-5\\y&<2\end{aligned}[/tex]

if f(x)=x^2-5x+4, if is possible to find f(x+4) by replacing each occurrence of

Answers

Answer

It is possible to find f(x+7) by replacing each occurrence of

X by X+7

It is possible to find f(x+7) by replacing each occurrence of x in the function f(x) = x² - 5x + 4 and the function f(x + 4) becomes f(x + 4) = x² +3x.

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

f(x) = x² - 5x + 4

It is required to find the f(x + 4)

Replace x with x + 4

f(x + 4) = (x + 4)² - 5(x + 4) + 4

f(x + 4) = x² + 8x + 16 - 5x - 20 + 4

f(x + 4) = x² +3x

The function f(x + 4) is f(x + 4) = x² +3x  after plugging x = x + 4 in the f(x)

Thus, it is possible to find f(x+7) by replacing each occurrence of x in the function f(x) = x² - 5x + 4 and the function f(x + 4) becomes f(x + 4) = x² +3x.

Learn more about the function here:

brainly.com/question/5245372

#SPJ2

The table shows the proportional relationship between the cost in dollars (c) of salsa and the weight in ounces (w) at the farmer market.

Answers

Answer:

The answer is c

Step-by-step explanation:

18/6=3

For membership to an athletic club, it costs $110 to join and $25 per month of membership. Write an equation to show the situation

Answers

Answer:

110 + 25x = Total Cost (or any type of variable needed, like a,b,c, etc.)

Step-by-step explanation:

Since the monthly fee occurs more than once, and we don't have the number of months, we put an x to represent the amount of months. The $110 is the one time additional fee for the membership, so it doesn't need a variable.

what is 72 divided by 2 plus 80 equal?

Answers

Answer:

116

Step-by-step explanation:

What is the equation of this line?

Answers

Answer:

A

Step-by-step explanation:

Rise over run up one unit over 2 and the y int is at -3

Rosa bought some notebooks that cost $2 each. She also bought a compass that cost $3. She spent a total of $25. How many notebooks did she buy.

Answers

Answer:

10 notebooks

Step-by-step explanation:

Answer:

7 notebooks

Step-by-step explanation:

Please help me out on this! Would be greatly appreciated

Answers

the answer is "nonlinear association"

47100 was rounded to the nearest hundred.
What is the lower bound?
Help plz

Answers

Answer:

47,100.00

Step-by-step explanation:

Answer:

47050

Step-by-step explanation:

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