-5x - 2y = 13
-4x + y = 0
Solve by substation

Answers

Answer 1

Answer:

(x,y)=(-1,-4)

Step-by-step explanation:

-4x + y = 0

+4x         +4x

y=4x

-5x - 2y = 13

+5x          +5x

-2y = 5x+13

-2(4x) = 5x+13

-8x=5x+13

-5x -5x

-13x/-13=13/-13

x=-1

Thus:

y=4x

y=4(-1)

y=-4


Related Questions

74°F, 65°F, 71°F, 65°F. 68°F, 78°F, 72°F. 67°F
What is the mean absolute deviation of this data set?

Answers

Answer:

3.75jgfbvuekdfb

Step-by-step explanation:

Two times the complement of an angle is 23 less than the supplementary of the angle. What is the measure of the angle?

Answers

Answer:

Step-by-step explanation:

Let the angles be x and y

If the two angles are complementary then their sum is 90 i.e x+y = 90

x = 90-y

If the two angles are supplementary, then their sum is 180 i.e x+y = 180

x = 180-y

If two times the complement of an angle is 23 less than the supplementary of the angle, this is written as;

2(90-y) = (180-y)-23

180-2y = 157-y

-2y+y = 157-180

-y = -23

y = 23

Hence the angle is 23°

4. Asma can iron 5 shirts in 14 minutes. How long will she take to iron 35 shirts?
n make a water tank emnty in 20 minutes. But 2 pumps are​

Answers

Answer:

Asma can iron 5 shirts in 14 minutes.

She can iron 1 shirt in 14/5 minutes.

she can iron 35 shirts in (14/5)×35 minutes.

=98 minutes i.e1 hour 38 minutes

between what two integers is √32

Answers

Answer:

5 and 6.

Step-by-step explanation:

5^2 = 25 and 6^2= 36

As we know, 32 is between 25 and 36, therefore √32 is between √25 and √36.

HELP PLEASE!!! Evaluate the expression 12 + {-4 + 2[1 + 3(-5 – 3)]} and enter your answer.

Answers

answer: -42
explanation: you start with the innermost parentheses and work out

Find the inverse of the following function g(x) = 2x+10/4

Answers

Answer:

Step-by-step explanation:

To find the inverse of the function you need to swap x and y

g(x)=y so therefore if you switch x and y, you get

x= 2y+ 10/4

Next, you need to get all of the values on the y side over to the x side. To do this you need to subtract 10/4 from the y side of the equation.

x-10/4=2y+10/4-10/4

The end product of this should be... (This is not your answer)

x-10/4=2y

Now you need to get rid of the 2 on the y side. To do this you need to divide both sides of the equation by 2

2/x-10/4=2y/2

So your answer is...

x-10/4 over 2 = y

OR

2/x + 5/4 = y

Lots of love,

-Kiddoo <3

ummmm whats (40 + 215 -77) x 9÷ 3 - 20 = ?

Answers

If you do PEMDAS correctly you’ll get the answer 514

-2/5 x 5/9 Make it a fraction please!

Answers

Answer:

-2/9

Step-by-step explanation:

Multiply both fractions: -10/45 and then simplify: -10 divided by 5 =-2

45 divided by 5 = 9

so....     -2/5 x 5/9 = -2/9

A gymnasium is 40 m long. Starting at one end lines are taped every 5 yd across the floor.
How many lines are taped across the floor?

Answers

Answer:

8 lines

Step-by-step explanation:

5 yards = 4.572 meters

40 m /4.572 = 8.7489063867

8 lines

Use the numbers 1 through 9(each number only once) in the following arrangement to make three equal fractions.

plz help ​

Answers

Answer:

[tex]\frac{3}{6}=\frac{7}{14}=\frac{29}{58}[/tex]

Step-by-step explanation:

By hit and trial method,

Given series of fractions will be,

[tex]\frac{3}{6}=\frac{7}{14}=\frac{29}{58}[/tex]

Since, [tex]\frac{3}{6}=\frac{3\times 1}{3\times 2}[/tex]

             [tex]=\frac{1}{2}[/tex]

[tex]\frac{7}{14}=\frac{7\times 1}{7\times 2}[/tex]

    [tex]=\frac{1}{2}[/tex]

[tex]\frac{29}{58}=\frac{29\times 1}{29\times 2}[/tex]

    [tex]=\frac{1}{2}[/tex]

Therefore, [tex]\frac{1}{2}=\frac{1}{2}=\frac{1}{2}[/tex] is the reduced form of the fractions.

[tex]\frac{3}{6}=\frac{7}{14}=\frac{29}{58}[/tex] will be the answer.

Help will give the brainliest answer 40 points!!!!

Answers

Answer:

y=-2x+6

\

Step-by-step explanation:

the LCM of 1 + sin a and 1 - sin is​

Answers

Answer:

gsscxcccvvccc aaaaawaaq

Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made? She forgot to move the decimal point to the left after she added. She lined up the front numbers instead of the decimal places. She lined up the last numbers instead of the decimal places. She didn’t carry correctly between place values.

Answers

without an explanation your answer is (B) She lined up the front numbers instead of the decimal places.

if you need an explanation here:

________________________________________

For a problem with a decimal in the numbers, you ALWAYS have to line them up or your answer will be incorrect.

She should have put: 13.47

                                 +  1.56

                                    15.03

therefore, 15.03 would have been her correct answer. :-)

                                   

Answer:

b

Step-by-step explanation:

edge 2021

Find x, when p(x) = -1,

Answers

Answer:

positive or negative 4

Step-by-step explanation:

p(x) is another form of saying y. plug in -1 as the y value. then look where on the graph it touches the line

HELP ME PLZZ I NEED HELLPPP!!!!!1

Answers

Answer:

-225 feet

Step-by-step explanation:

The submarine started at -40 feet and wend down 185 feet which means the submarine is now at -225 feet.

Work:

-40 + (-185)

-40-185

-225

Final Answer: -225 feet

Please help! This is due at 11:59pm (the problem is stated in the photo)

Answers

Answer:

y=-5x

Step-by-step explanation:

this is because slope intercept form is y=mx+b

if m= -5 and b=0 the answer would be

y=-5x+0

simplified it would be

y=-5x

Y=-5x , that is the answer for your problem

what does f(2)=14 mean

Answers

Answer:

f(x) = expression

f(2) = 14 means that your x-value is 2. when you plug in 2 for x, you get 14 as y.

(F=7) shzgdgshdndtddh sshdnxhdne my gdshz hmmm d gn shdhd

GEOMETRY HELP!!

19. What is the coordinate of the midpoint of the segment formed by the two points you found in Exercises 17 and 18?

Please explain

Answers

Answer:

0

Step-by-step explanation:

To find the coordinate of the midpoint of segment QB, first, find the distance from Q to B.

QB = |4 - 8| = |-4| = 4

The coordinate of the midpoint of QB would be at ½ the distance of QB (½*4 = 2).

Therefore, coordinate of the midpoint of QB = the coordinate of Q + 2 = 4 + 2 = 6

OR

Coordinate of B - 2 = 8 - 2 = 6

Coordinate of the midpoint of QB = 6

Coordinate of W = -8

Coordinate of A = 0

distance from W to A (WA) = |-8 - 0| = |-8| = 8

The coordinate of the midpoint of WA would be at ½ the distance of WA = ½*8 = 4.

Therefore, coordinate of the midpoint of WA = the coordinate of W + 4 = -8 + 4 = -4

Or

Coordinate of A - 4 = 0 - 4 = -4

Coordinate of the midpoint of WA = -4

Now, let's find the midpoint between the two new coordinates we have found, which are -4 and 4

Distance of the segment formed by coordinate -4 and 4 = |-4 - 4| = |-8| = 8

Midpoint = ½*8 = 4

Coordinate of the midpoint = -4 + 4 = 0

Or

4 - 4 = 0

yesterday Jenny had c baseball cards. Today she gave 5 away. Using c, write an expression for number of cards Jenny has left.​

Answers

Answer:

C - 5

thats like the only one i know sorry

Ari is jogging at an average rate of 2.25 meters per second. Find the time it will take him to jog 270 meters.

Answers

Answer:

120 seconds/2 minutes

Step-by-step explanation:

divide the distance (270 m) by the rate (2.25 m/s) and you have 270/2.25 = 120 seconds, or 2 minutes.

It will take Ari 120 seconds to jog 270 meters.

To find the time it will take Ari to jog 270 meters at an average rate of 2.25 meters per second, we can use the formula:

Time = Distance / Rate

where:

Distance = 270 meters

Rate = 2.25 meters per second

Time = 270 meters / 2.25 meters per second

Time = 120 seconds

Therefore, it will take Ari 120 seconds to jog 270 meters.

To know more about jog:

https://brainly.com/question/14495883

#SPJ2

-3x + 9 = 5(x - 3)

please help solve this​

Answers

Answer:

x =3

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Three times the sum of
4 and t is the same as the
difference of t and 2

Answers

Answer:

3(4 + t) = t - 2

Step-by-step explanation:

Symbolically, we have:

3(4 + t) = t - 2


find the missing angle

Answers

Answer:

I don’t have the answer but I recommend downloading socratic I use this app and it is so helpful

Step-by-step explanation:

It helps me with all my questions

George put 25 mL of water into a graduated cylinder. After adding a solid object, the water level in the cylinder rose to 45 mL. What is the volume of the object?

Answers

Answer: 20 mL

Step-by-step explanation:

According to Archimedes, the upward force exerted on a body immersed in a fluid is equal to the weight of the fluid the body displaces.

i.e. weight of the object = weight of the fluid displayed

Given: George put 25 mL of water into a graduated cylinder. After adding a solid object, the water level in the cylinder rose to 45 mL.

So, the volume of the object = New volume - Original volume

= 45 mL - 25 mL

= 20 mL

Hence, the volume of the object =20 mL

True or False: by using the additive inverse property -64 - (-17) can be rewritten as -64 + 17

Answers

Step-by-step explanation:

Additive inverse is when you have a positive number, for example, and it becomes a negative.

Example: 8

The additive inverse of 8 is -8.

So the answer is false.

-64+17 and -64-(-17) is an example of communative property.

Hope it helps!

What is the slope of the following equation? 5x - 2y = 13

Answers

Answer:

[tex] \frac{5}{2} [/tex]

Step-by-step explanation:

[tex]5x - 2y = 13 \\ 5x - 13 = 2y \\ 2y = 5x - 13 \\ y = \frac{5}{2} x - \frac{13}{2} \\ equating \: it \: with \\ y = mx + b \\ slope(m) = \frac{5}{2} [/tex]

Which of the following is the rule for the geometric sequence 1, 3, 9, 27, . . .?

Answers

Answer:

[tex]a(n) = 1 \times {3}^{n - 1} [/tex]

Step-by-step explanation:

We started at 1And it seems that index after index it multiplies by 3The formula for the geometric sequence defined implicitly is a(n) =a(1)r^(n-1)

[tex]a(n) = a(1) {r}^{n - 1} \\ a(n) = 1 \times {3}^{n - 1} [/tex]

Answer:

D

Step-by-step explanation:

A 9-foot roll of wrapping paper costs $15.12. What is the price per inch?

Answers

Answer:

$0.14

Step-by-step explanation:

$15.12/9

ans/12

Need Help! 10 points!

Answers

Answer:

Lenora can make 15 batches if she has 5 cups of oil.

Step-by-step explanation:

I hope this helps you :)

In a bag there are 3 red marbles, 2 yellow marbles, and 1 blue marble. What are the odds of a yellow marble being selected on the first draw? CHOICES ------> ( 4:2 1:5. 3:3. 2:4) SOS

Answers

Answer:

1:3

Step-by-step explanation:

To find the probability of selecting a certain type of item from a collection, simply divide the number of items of that type by the total number of items.

There are 3 + 2 + 1  = 6 marbles in total. There are 2 yellow marbles, so the probability of choosing a yellow marble on the first draw is 2/6. This can be further simplified to 1:3.

Answer:

i would say 2:4

Step-by-step explanation:

think about them as basketball teams

The yellow team has two players

the mix team has 4 players

so the game is 2 players on 4 players

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