Solve using substitution. x+y=-9 and -2x-3y=17​

Answers

Answer 1
answer:
x = -10
y= 1
explanation:
x+y = -9
y = -9 - x
-2x -3 (-9 - x) = 17
-2x +27 +3x = 17
27 + x = 17
x = -10
y = -9 -(-10)
y= -9 + 10
y= 1
(This is just math i did real quick and didnt double check, tell me if its wrong please!)

Related Questions

Aşağıda alanı verilen karelerden hangisinin bir kenar uzunluğu 5 m ile 6 m arasındadır?

[tex] 18{m}^{2} [/tex]
[tex]24 {m}^{2} [/tex]
[tex]30 {m}^{2} [/tex]
[tex]42 {m}^{2} [/tex]

Answers

Answer:

Step-by-step explanation:

5 < √x < 6

25 < x < 36

Alan = 30m² olan karenin kenar uzunlukları 5m ile 6m arasındadır.


A.3/5
B.2/3
C.5/3
D.2

Answers

Answer:

The answer was d

Step-by-step explanation:

Please help me I’m stuck again:)

Answers

Answer:

I think the answer is 8, but i ain't sure so......

Step-by-step explanation:

2 + 8 = 10

10 + 8 = 18

18 + 8 = 26

26 + 8 = 34

Ben is three times as old as Kate. Kate is 6 years older than Jill. Jill is J years old. What is the combined age of the three people?

Answers

Answer:

the combined age of the three people  is

5 J + 24

Step-by-step explanation:

Jill (J)

Kate (J+6)

Ben 3(J+6)

J + (J+6) + 3(J+6)

J+J + 6 +3 J +18

5 J + 24

Susanna found a roll of fabric she wanted to use to make a pillow. The roll had of a yard of fabric left. Susanna needed of the remaining fabric. Which fraction represents how much fabric Susanna needed?

Answers

Answer:

1/4 of a yard

Step-by-step explanation:

Susanna found a roll of fabric she want to use to make a pillow. The roll had 3/4 of a yard of fabric left. Suzanne need 1/3 of the remaining fabric. Which fraction represents how much fabric Susanna needed?

Yard of fabric left = 3/4 of a yard

Yards needed by Susanna = 1/3 of the remaining fabrics

= 1/3 of 3/4 of a yard

= 1/3 × 3/4

= 1/4 of a yard

Therefore Susanna needs 1/4 of a yard of fabrics

The fraction which represents how much fabric Susanna needed is 1/4 of a yard

Can someone pls help me with this question?

Answers

Answer:

d

Step-by-step explanation:

the slope from month 4 to month 5 is positive so the money in his account is rising

Answer:

D. The bank balance in John's saving account increases from Month 4-5

Step-by-step explanation:

Lets go with one answer at a time

It talks about the fact that there is not change from Month 1 to Month 2

However, an entire $750 has changed therefore, option A would be incorrect.

This one also talks about the fact that there is no change from Month 2 to Month 3

When in fact it has changed more than $250 downwards, so option B would be incorrect.

This one talks about the bank account decreasing from Month 3 to 4

However, in that time period it stays the same therefore, option C would also be incorrect.

Now that should mean that D is the right answer, but, we should still check.

This talks about John's bank account increasing from Month 4-5

Yes it does change upwards. It increases $750 again.

Therefore, your answer would be D. The bank balance in John's saving account increases from Month 4 to 5.

Evaluate. 4 1/8 – 1 3/4

Answers

Answer:

3 2/8

Step-by-step explanation:

4 1/8 - 1 3/4 =

3/4 equals 6/8

4 1/8 - 1 6/8 =

do the math

4 1/8 - 1 6/8 = 3 2/8

hope this helps! Plz give brainlyest!

Answer please. will give b brainliest for correct answer​

Answers

Answer:

x = 51.3°

Step-by-step explanation:

Hope this helped!

Need 3 more questions giving brainless!! Help and giving 45 points!!

Answers

Answer: it's c

Step-by-step explanation: if you add them all up they equal 9

You buy 1 box of dog food and 2 cans of cat food for $25. Your friend buys 2 boxes of dog food and 1 can of cat food for $26.

Answers

a = dog food, b = cat food
1a + 2b= 25
2a + 1b = 26
simultaneous equations!!

2a + 4b=50
2a + 1b = 26
subtract from each other

2a - 2a = 0
4b - 1b = 3b
50 - 26 = 24
3b = 24
b = $8

then sub into equation
1a + 2(8) = 25
25-16 = 9

a= $9

The cost of 1 box of dog food is $ 9 and cost of 1 can of cat food is $ 8  

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the cost of 1 box of dog food be = x

Let the cost of 1 can of cat food be = y

The cost of 1 box of dog food and 2 cans of cat food = $ 25

The cost of 2 boxes of dog food and 1 can of cat food = $ 26

So , the equation will be

1x + 2y = 25   be equation (1)

2x + 1y = 26   be equation (2)

Now , Multiply equation (1) by 2 , we get

2x + 4y = 50   be equation (3)

On Subtracting equation (2) from equation (3) , we get

3y = 24

Divide by 3 on both sides , we get

y = $ 8

Substituting the value of y in equation (1) , we get

x + 2 ( 8 ) = 25

x + 16 = 25

Subtracting 16 on both sides , we get

x = $ 9

Therefore , the value of x is $ 9 and value of y is $ 8

Hence , the cost of 1 box of dog food is $ 9 and the cost of 1 can of cat food is $ 8  

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ5

What is the VARIABLE in the expression 8p - 5?*

Answers

Answer:

p is the variable

Step-by-step explanation:

a variable is a letter that represents an unspecified number.

Answer:

p is the variable

Step-by-step explanation:

p is the variable because "p" is the only unknown

hope this helps :) have a nice day !1

The formula for the volume of a cylinder is V= ah, where Vis the volume, r
is the radius, and his the height. Solve the formula for r, and then use it to
answer the question.
A cylindrical bucket contains 452 cubic inches of water. The height of the
water is 4 inches.
What is the radius of the bucket, to the nearest whole number? Use 3.14 for
TT.
A. 8 inches
B. 5 inches
C. 7 inches
D. 6 inches

Answers

Answer:

volume=452in³

πr²h=452

r²=452×4/3.14=575.8

r=√575.8=23.99=24in is your answer

Find the answers please?

Answers

Answer:

<1 and <5 by the corresponding angles theorem

Answer:

1. corresponding angles theorem, 2. linear pair postulate, 3. definition of supplementary angles (I am not a %100 sure on number 3 though)

Step-by-step explanation:

Split 2m in the ratio 7:3​

Answers

Answer

1.4m:6m

Step-by-step explanation:

First let's covert 2m to cm, this will make it easier to split,

2m = 200cm

Then we add the ratio,

7 + 3 = 10

Then we divide by 200cm

200 ÷ 10 = 20

Then we multiply by the ratio,

20 x 7 = 140

20 x 3 = 60

Finally we convert back to meters!

1.4m:60m

Have a great day :)

Answer:1400000 : 600000or 1.4m : 0.6m ( this would also be right if 2m wasnt 2,000,000 )

Step-by-step explanation:add both sides of the ratio together witch would get 10now divide 2m by that to get 200000now to get the ratio we get 7 : 3then times 200000 by each side of the ratio7 x 200000 : 3 x 200000    1400000 : 600000

Note:if you meant 2m as 2,000,000 then this is right

find the inage of (-4, -2) obtained by translating 3 units up, followed by a reflection over the x-axis

Answers

Answer:

(-4, -1)

Step-by-step explanation:

3 up would be (-4, 1)

reflection over the x-axis means the y coordinate is opposite so it is (-4, -1)

90 POINTS AND A BRAINLIEST!!!!!!



A certain rectangular prism has a height of 6 m, a length of 5 m, and a width of 4 m. Give the dimensions of a SECOND rectangular prism that will have the same surface area of the first one.




Pls dont look up the question and copy and paste the same answer either
if you do i will report you
if anyone is wondering why im so "pressed' I've had LOTS of issues with arrogant people
Thanks!


PLS DON'T ASK FOR BRAINILEST UNLESS YOU TAKE YOUR TIME AND ACTUALLY DO THE QUESTION PLEASE :((((

Answers

Answer:

The surface area is 148

Step-by-step explanation:

Soooo i had to look up how to do it cause i completely forgot how. But once i did, i worked it out.

The formula i got was: A= 2(wl+hl+hw)

W= width                 h= height           l= length

From there i just replaced the corresponding numbers for the letters that represent them. (think of that as like you see someone that you think represents you and you try to replace them, with you. Same here just w/ numbers and letters)

A= 2 [ (4x5) + (6x5) + (6x4) ]

from here you do order of operations starting with what's inside the parentheses. Then you work your way out.

A= 2 [20+ 30+ 24]

A= 2 [74]

Anytime a number is next to parentheses or brackets (which are these: [ ] ) you multiply what is outside them by what's inside them. (for this think about kids. When you seperate them, they try to make more noise. When you seperate numbers, they multiply)

Final answer is

A= 148

if this is wrong i am so, so, so sorry. I hope this helps, and i hope you have an amazing day!! Be tiger fierce! :)

A length of 5.3, a width of 7, and a height of 3.  This would give you the same surface area of 148 as the 1st one. Good luck with your studies <3

Kenna's is earning money. The following equation models her earnings: y=55x+1300
Mike is also earning money. The following equation models his earnings. y=25x+1720
*x is the number of weeks, y is total earnings.
In how many weeks, they have the same earnings.

Answers

Answer:

In 14 weeks, they will have the same earnings.

Step-by-step explanation:

y = 55x + 1300 -------- (1)

y = 25x + 1720 -------- (2)

(2) = (1)

55x + 1300 = 25x +1720

55x - 25x = 1720 - 1300

30x = 420

30x ÷ 30 = 420 ÷ 30

x = 14

An observatory is shaped like a cylinder standing on one of its bases with a dome on top. The diameter of the floor of the observatory is 64 feet, as shown in the diagram. What is the measurement of the circumference of the base of the observatory in feet to the nearest hundredths place?

Answers

Answer:

201.14 ft

Step-by-step explanation:

C = 2 π r = π d

C = [tex]\frac{22}{7}[/tex] × 64 ≈ 201.14 ft

Answer:

3215.36

Step-by-step explanation:

C=πr²

C=3.14(32)²

C=3.14(32·32)

C=3.14(1024)

C=3215.36

Find the domain of the graphed function!

Answers

Answer:

a

Step-by-step explanation:

Here are four digits.
8 2 4 3
(a) (1) Use two of these digits to make the smallest possible two-digit number

Answers

Answer:

23

sorry if I'm wrong, I just guessed..

The expression (y-20)(y5)3 is equivalent to ya. What is the value of a?

Answers

Answer:

y¹⁵-20y¹⁴

Step-by-step explanation:

I'm going to assume that your problem looks like this

[tex](y-20)(y^5)^3[/tex]

[tex](x^n)^y=x^{n*y}[/tex]

which means we have

[tex](y-20)*y^{15}\\\\y^{16}-20y^{15}=ya\\\\*y^{15}-20y^{14}=a[/tex]

3.4 greater than 110%

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

111

Step-by-step explanation:

It costs Jesse $1600 to maintain and drive his car for 32 000 km.
find the cost in $ per km.

Answers

Answer:

$20

Step-by-step explanation:

32000 divided by 1600 is 20

so the answer will be $20.

thank you, and if this is right, please let me know!

Answer:

$0.05 per km.

Step-by-step explanation:

1600/32000

= 16/320

= 1/20

= $0.05.

HELP ASAP 9) Determine the Volume of Triangular Prism;
6 in.
10 in.
12 in.

Answers

the answer is: V= 720 in^3

Find the slope
(19, -16) (-7, -15

Answers

Answer:

Y-Intercept (-3,4) , (19,7). (−3,4) ( - 3 , 4 ) , (19,7) ( 19 , 7 ). Find the value of the slope.

Step-by-step explanation:

Sam put 3000 into saving it earned 6% simple interest annually after 6 years how much will Sam have

Answers

Answer:

the future value is 4,080

Step-by-step explanation:

The computation of the future value under the simple interest is shown below:

As we know that

Future value = Present value × (1 + rate of interest × time period)

= 3,000 × (1 + 6 × 6%)

= 3,000 × (1 + 0.36)

= 3,000 × 1.36

= 4,080

Hence, the future value is 4,080


How many teaspoons are in
400 milliliters? 1 tsp = 5 ml
400 mL = [?] tsp

Answers

81.153654 Teaspoons!

find the values; is a parallelogram

Answers

9514 1404 393

Answer:

  (x, y, z) = (2, 31°, 60°)

Step-by-step explanation:

Opposite sides have the same length, so ...

  x + 8 = 10

  x = 2 . . . . . . . . subtract 8

__

Consecutive angles are supplementary, so ...

  (3y +10°) +(2y +15°) = 180°

  5y = 155° . . . . . . subtract 25°

  y = 31° . . . . . . . .divide by 5

__

Opposite angles are congruent, so ...

  z +17° = 2y +15°

  z = 2y -2° = 2(31°) -2°

  z = 60°

What's the slope? (-19, 12), (-9,1)

Answers

Answer: 21/-20

Why?
To find skip you do the difference of Y/ the difference of x. So...
12+9/ -19-1 = 21/-20

Hope this helps :D

Answer:

Slope: -11/10

Step-by-step explanation:

always do    y2 - y1/x2 - x1

12 - 1 / -19 + 9 = -11/10

4 cm
5 cm
2 cm
2 cm
What is the area of the shaded region?
A 4sq cm
B 24sq cm
C 30sq cm
D 20sq cm

Answers

Answer:

20sp cm alomejor es esa la respuesta

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