En un parqueadero hay 50 vehículos. Pero si contamos sus llantas hay 140.¿Cuántos carros y motos hay? Por favor alguien que me ayude este tema es de matemáticas problemas lineales 2x2

Answers

Answer 1

Answer:

Carros = 20

Motos = 30

Step-by-step explanation:

Carros = x

Motos = y

x + y = 50

4x + 2y = 140

x = 50 - y

4 (50-y) + 2y = 140 (substitución)

200 - 4y + 2y = 140

- 2y = 140 - 200

y = -60/-2

y = 30

x + 30 = 50

x = 50-30

x = 20


Related Questions

Find the missing angle measures.
What is m∠2?
a 40
b 60
c 50
d 100

Answers

I think C.50 is the answer

Marc solves the equation Latex: (\sqrt[4]{x})^3=5\textsf{.} His work is shown below. Step 1: Latex: (\sqrt[4]{x})^3=5 ( √ [ 4 ] x ) 3 = 5 Step 2: Latex: x^{\frac{3}{4} }=5 x 3 4 = 5 Step 3: Latex: x^{\frac{3}{4} \cdot \frac{4}{3} }=5^{\frac{4}{3} } x 3 4 ⋅ 4 3 = 5 4 3 Step 4: Latex: x=\sqrt[3]{5 \cdot 5 \cdot 5 \cdot 5} x = √ [ 3 ] 5 ⋅ 5 ⋅ 5 ⋅ 5 Step 5: Latex: x=5\sqrt[3]{\not{5} \cdot \not{5} \cdot\not {5} \cdot 5} x = 5 √ [ 3 ] ¬ 5 ⋅ ¬ 5 ⋅ ¬ 5 ⋅ 5 Step 6: Latex: x=5\sqrt[3]{5} x = 5 √ [ 3 ] 5 Explain what Marc did in steps 4 and 5. Why did he do this? Create your own radical equation and explain how to solve it. Is there an extraneous solution to your equation?

Answers

Based on the calculation, we can say that there is an extraneous solution to the equation

Given the equation solved by Marc expressed as:

[tex](\sqrt[4]{x})^3=5[/tex]

We are to check if the indices equation has an extraneous equation.

According to the law of indices [tex](\sqrt[n]{m} )^a=m^{\frac{a}{n} }[/tex], the expression becomes:

[tex](\sqrt[4]{x})^3=5\\x^\frac{3}{4}=5\\[/tex]

Raise both sides to the power of 4/3 as shown:

[tex](x^\frac{3}{4} )^\frac{4}{3} = 5^\frac{4}{3}\\x^1 = 5^\frac{4}{3}\\x = 5^\frac{4}{3}\\[/tex]

This shows that there is an extraneous solution to the equation

Learn more here: https://brainly.com/question/12232011

Martin finds a shirt on sale

Answers

Hmmm how much is the shirt

-x^4+2x^3+8x=0. solve by factoring

Answers

2.93114246

Step-by-step explanation:

Solve the equation, y = 7x + 10, using the x-values, 3, 5, and 8.
Which of the following T-tables represents the ordered pairs?

Please help !!

Answers

Answer:

y=7%283%29%2B10

y=21%2B10

y=31

(3,31)

Step-by-step explanation:

Answer:

the answer is A

Step-by-step explanation:

Solve for x.

(x÷2)+6=50


x = 22

x = 28

x = 38

x = 88

Answers

The answer is x = 88

help is very much needed

Answers

Answer:

IT'S NEGATIVE 3. HOPE THIS HELPS...

If an area of a circle is 65.71cm*2 what is the radius? Round the answer to 2DP.

Answers

Answer:

4.57

Step-by-step explanation:

square root of 65.71 divided by pie

Please help! I need help T-T

Answers

Answer:

$130.00

Step-by-step explanation:

674-284=390

390/3=130

what that person said :(

GUYSSS PLSSS HELP ME WITH THIS QUESTION :))

Answers

Answer:

17

Step-by-step explanation:

1) if to solve the first inequation, tnen 3x<52; ⇔ x<52/3;

2) if to solve the seconde inequation, then 2x≥24; ⇔ x≥12.

3) according to the items 1 and 2 x∈[12;52/3);

4) the largest prime number is 17.

how do you do this, thanks for helping

Answers

Answer:

A: (-7, -4)

B: (-3, 8)

Step-by-step explanation:

Ordered pairs are (x,y).

Count the lines and see:

A is 7 to the left and 4 down so (-7, -4)

B is 3 to the left and 8 up so (-3, 8)

REMEMBER X IS ALWAYS FIRST!!

Does this answer make sense? YES! Because quadrant II all the pairs will be (-#, #) and in quadrant III the pairs will be (-#, -#)

Hope that helps!

Please help !!! Will mark as brainliest !!!

Answers

Answer:

So the answer would be (A.

Step-by-step explanation:

Does the graph represent a function? Why or why not? ​

Answers

Answer:

The vertical line test can be used to determine whether a graph represents a function. ... If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output. A function has only one output value for each input value.

Step-by-step explanation:

Can i get braineist pls

please help me with this

Answers

Answer:

Okay the answer is

Answer:

3+(4+5) - (3+4)+5

7 . (2 . 5) - (7 . 2) . 5

5 . 9 - 9 . 5

3+4 - 4+3

The Dot's mean multiplication

Step-by-step explanation:

What are the differences and similarities between the the graphs and equations of circles and ellipses?

Answers

Space Environment

A circle is a closed curved shape that is flat. That is, it exists in two dimensions or on a plane. In a circle, all points on the circle are equally far from the center of the circle. An ellipse is also a closed curved shape that is flat.

Make y the subject of this equation:
P-3=qy

Answers

Answer: (P - 3)/q = y

A square has a area of 121 square centimeters. what is the length of each side

Answers

Answer is so 100-8 is square root of 100

The table shows a set of values for x and y

Answers

a) Assume y = [tex]x^{2}[/tex]

[tex]1b=\frac{k}{1^{2} }[/tex] k = 1b

[tex]y=\frac{1b}{x^{2} }[/tex]

b) y = 25

[tex]x^{2}=\frac{16}{25}[/tex]

[tex]x=\sqrt{\frac{4}{5} ^{2} }[/tex]

x = ±[tex]\frac{4}{5}[/tex]

x > 0, x = 4/5

{ Equation }

y=16/x² is required equation for y in terms of x and x=4/5 when y=25.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The table of values are

x         1         2         3         4

y        16        4        16/9      1

Given that y is inversely proportional to square of x.

y=k/x²

Let us consider

y=16 and x=1

16=k/1

k=16.

y=16/x²

So y=16/x² is equation for y in terms of x

b) We need to find value of x when y=25

25=16/x²

Use cross multiplication

x²=16/25

Take square root on both sides

√x²=√16/25

x=±4/5

If x>0 , so x=4/5

Hence y=16/x² is required equation for y in terms of x and x=4/5 when y=25.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ5

Jon is 3 years younger than Laura. The product of their ages is 1,330. If j represents Jon’s age and represents Laura’s age, what value of j could be Jon’s age?

Answers

Answer:

35

Step-by-step explanation:

The factors chosen are 35 and 38 which multiplied = 1330(the product) Laura is 3 years older than jon so she is 38 and Jon is 35.

Round 11.036568047 to 4 decimal places.

Answers

Answer:

11.0366

Step-by-step explanation:

Look at the 5th digit after the decimal place. If it is a 4 or lower, round down. If it is a 5 or higher, round up:

11.03656 - 6 is higher than 5 so the number is rounded up to 11.0366

Hope this helps!

The number is rounded up to 11.0366.

How to identify the place value of a digit in a number?

The place values on left of decimal point start as ones, tens, hundreds, and so on...

The place value on right of decimal point starts from point and goes to right as tenths, hundreths and so on..

Thus, The tens means multiply by 10

Thus, The tenth means tenth part of that digit which is that digit divided by 10

If we Look at the 5th digit after the decimal place. it is a 4 or lower, round down. If it is a 5 or higher, round up:

11.03656 -

6 is higher than 5 so, the number is rounded up to 11.0366.

Learn more about the decimal here;

https://brainly.com/question/24064260

#SPJ2

Alex made 135 out of 540 cookies for the bake sale. What percent of cookies did Alex make for the bake sale?
A. 40%
B. 30%
C. 25%
D. 50%

Answers

Answer:

c) 25%

Step-by-step explanation:

135÷540=0.25

so 25%

Which inequality best represents that icecream at -3⁰C is cooler than icecream at 1⁰C?​

Answers

Answer:

Ice cream at -3 c is cooler than 1 C therefore since you are looking to know which one is cooler > would be the best option.

Step-by-step explanation:

Have a wonderful day!

Your classmate says the triangles below are not congruent by SSS. She explains that congruent sides do not correspond explain the error in her reasoning.

Answers

Congruent triangles are triangles with equal corresponding sides.

The triangles are congruent

From the question (see attachment), we have the following observations.

Two corresponding sides are marked with ITwo corresponding sides are marked with IITwo corresponding sides are marked with III

The above highlights mean that:

The corresponding sides are congruent by SSS theorem

Hence, your classmate's claim is incorrect.

Read more about congruence of triangles at:

https://brainly.com/question/20517835

solve please :3 will mark brainliest !!

Answers

>> Answer

__________

[tex] \: [/tex]

6f = $15

8f = $20

10f = ?

Soo :

2f = 5

f = 2,5

10f = 10(2,5) = $25

The cost of the wire of the third length in the table is, 25 dollars

We have to give that,

The cost of a certain type of wire varies directly with its length.

Now, From the table the equation between cost and length is,

y - 15 = (20 - 15)/(8 - 6) (x - 6)

y - 15 = (5/2) (x - 6)

y - 15 = 2.5x - 15

y = 2.5x

Where y represents the cost and x represent the length.

Hence, At x = 10 feet

y = 2.5 (10)

y = 25 dollars

So, The cost of the wire is, 25 dollars

To learn more about the equation visit:

brainly.com/question/28871326

#SPJ6

answer po plss plssplsss

Answers

Answer:

I'll answer 6 to 10 cuz that's only what I'm able to see

Step-by-step explanation:

6.

Y-Z

= {6,4,7,2,8,3} - {2,7,8,9,10}

= {6,4,3}

7.

( Y ∪ Z ) ∩ X

= ( {6,4,7,2,8,3} ∪ {2,7,8,9,10} ) ∩ {1, 2,3,5,8}

= { 2,3,4,6,7,8,9,10} ∩ {1, 2,3,5,8}

= {2,3,5,8}

8.

( X ∪ Y ) ∩  ( Y ∪ Z )

= ( {1, 2,3,5,8} ∪ {6,4,7,2,8,3} ) ∩ ( {6,4,7,2,8,3} ∪ {2,7,8,9,10} )

= {1,2,3,4,5,6,7,8} ∩ {2,3,4,6,7,8,9,10}

= {2,3,4,6,7,8}

9.

( X ∩ Z ) ∪ ( X ∩ Y )

= ( {1,2,3,5,8} ∩ {2,7,8,9,10} ) ∪ ( {1,2,3,5,8} ∩ {6,4,7,2,8,3} )

= {2,8} ∪ {3,8}

= {2,3,8}

10.

( X ∪ Y ) ∩ Z

= ( {1,2,3,5,8} ∪ {6,4,7,2,8,3} ) ∩ {2,7,8,9,10}

= {1,2,3,4,5,6,7,8} ∩ {2,7,8,9,10}

= {2,7,8}

Mmmmm help HELPPPPP,,,,,,

Answers

Answer:

I guess it's 63degrees

I hope it will help

The points ​(​18,21​) and ​(42,​49​) form a proportional relationship. Find the slope of the line through the points. Then use the slope to graph the line.

Answers

Answer: 5/2

Step-by-step explanation: 49 - 42/ 21 - 18

What is the value of 5+6−32(8÷14)?

Answers

Answer:

-7.3

Step-by-step explanation:


Find the 11" term of the following geometric sequence.
5, 15, 45, 135, ...

Answers

5*3^0 = 5,

5*3^1 = 15,

5*3^2 = 45,

5*3^3 = 135,

5*3^4 = 405
1.9K viewsView upvotes

5




Related Questions (More Answers Below)
the 11th term is 295,245.
I did the calculations

Clay gave four friends seven ball cards
each. How many cards did he give to his
friends?

Answers

Gave 4, kept 3. You can’t split the cards.
Other Questions
how does the placement of the section "prison abuses" supports the author's argument 82 x3 +4 +8 +5 +3I KNOW THE ANSWER JUST SOME POINTS FOR FREE pls explain Encourage families to plan ways to increase stability and security For example, parents may have to meet the needs of their young children while also caring for an older relative in failing health. Nevertheless, they can set aside time for a bedtime routine that involves reading a story and talking about the days events. what is the answer to this Cu 1Mark the letter A, B, C or D on your answersheet to indicate the correct answer to eachof the following questions. He told me hea student.A.was;B. be;C. were;D. is; what does this transformation refer to, who invented the first telescope Which of the following statements is true?a. An ion is negative if it has more protons than ithas electrons.b. An ion is negative if it has more electrons thanit has protons.c. An ion is neutral if it has an equal number ofelectrons and protons.d. An ion is positive if it has more electrons than ithas protons.e. An ion is positive if it has more protons than ithas neutrons. Someone plz help me :( examples of foods that are rich sources of phytochemicals include what other animals belong to the same group of invertebrates as jellyfish? Maya Is a carrier for albinism, a recessive tralt that results in the absence of the skin plgment melanin In halr and eyes. She marries Jack, and they have four children: Zach, Olivia, Sophla, and Veronica. Veronica expresses the tralt for albinism, but her three siblings are unaffected by the recessive tralt. Draw a pedigree that Illustrates the famlly's tralts, and upload your pedigree. Explain what is meant by the term antibiotic. 7 times a number plus 3 is 38. find the number what major piece of voting legislation was passed in 1965? Will mark brainliest for the answer Explain how the basic units are combined to give the derived units of force, velocity and pressure and work ano uri ng pagkain ang maaaring ibigay para sa manok na nagsisimulang mangitloga. starting mashb. growing mashc.laying mashd.finisher mash Read the short speech.Turn off your television, and talk to your family. You will be surprised at how much your siblings have to say. Turn off your television, and step outside. You will be surprised at how the cool air will refresh you. Turn off your television, and connect with the world around you. Your efforts will be rewarded.The author repeats the phrase "turn off your television to According to British sociologist and biologist ____________________________, Charles Darwin's theories of evolution meant that the fittest in society would demonstrate their superiority through economic success, while state welfare and private charity would encourage survival of the weak.