Una avenida está siendo asfaltada por etapas. En la primera etapa se asfaltó la mitad; en la segunda, la quinta parte, y en la tercera, la cuarta parte del total. ¿Cuál es la longitud de la avenida si aún faltan 200 m por asfaltar?

Answers

Answer 1

Answer:

Sabemos que:

L es el largo de la avenida.

En la primer etapa se asfalto la mitad, L/2, entonces lo que queda por asfaltar es:

L - L/2 = L/2.

En la segunda etapa se asfalto la quinta parte, L/5, entonces lo que queda por asfaltar es:

L/2 - L/5 = 5*L/10 - 2*L/10 = (3/10)*L

En la tercer etapa se asfalto la cuarta parte del total, L/4, entonces lo que queda por asfaltar es:

(3/10)*L - L/4 = 12*L/40 - 10L/40 = (2/40)*L

Y sabemos que este ultimo pedazo que queda por asfaltar es de 200m:

(2/40)*L = 200m

L = 200m*(40/2) = 4,000m


Related Questions

Use the order of
operations to evaluate
the expression
(-8X14)-(-2X-10)

Answers

Answer:

the order of operations is .called BODMAS rule

B.brackets

O.of

D.division

M.multiplication

A.addition

S.subtraction

Step-by-step explanation:

= (-112)-(20)

= -132

Balloon A is released 5 feet above the ground. Balloon B is released at ground level. Both balloons rise at a constant rate. Which situation can you represent using an equation of the form y = kx? Explain.

Answers

Answer:

The situation of balloon B

Step-by-step explanation:

Balloon A is released 5 feet above the ground and our ground level be 0 feet. Let k be the rate at which it rises and t the time it takes to rise. Its height y, above the ground after time x is y = kt + 5

For Balloon B since it is released at ground level at which ground level is taken as 0 feet, let t be the time it takes to rise above the ground and k the rate at which it rises above the ground. Its height y above the ground after tie x is y = kt

Since the expression for Balloon B is y = kt and the expression for Balloon A is y = kt + 5, only the situation of Balloon B can be expressed in the form y = kx.

This is because the rate of rise of Balloon B follows a direct proportionality while the rate of rise of Balloon follow a joint proportionality since it starts from a point other than ground level.

120-2x=30, what’s x?

Answers

Step-by-step explanation:

-2x=30-120

-2x = -90

=x = -90/-2

=x = +45

3a+8 7 anyone know the answer?

Answers

It’s literally 3a plus 87 if you’re asking 3a plus 8 times 7 then it’s 3a plus 56

Answer:

if you put 3a+87 the answer is 3(a+29)... but if u put 3a+ 8/7 the answer is 1/7*(21a+8)

Step-by-step explanation:

Leah scored a total of 18 points in the basketball game, and she scored p points in the second half of the game. Write an expression to determine the number of points she scored in the first half of the game. Then, find the number of points she scored in the first half of the game if she scored 2 points in the second half of the game.

Answers

Answer: 16 points for the first half game

Step-by-step explanation:

1st half = ?

2nd half= p

Total = 18

The expressions to get the score of the 1st game is 18 -p

If she scored 2points in the second half game that means p=2

To get the 1st half of the game you should do 18-2=16

X -2/5=7 help please

Answers

Answer:

37

Step-by-step explanation:

14 + x = -9 What is the answer?​

Answers

Answer:

The answer is 23 my Dear random friend!

Step-by-step explanation:

:D

Answer:

See Below

Step-by-step explanation:

14 + x = -9

To isolate x, subtract 14 from both sides

14 + x =  -9

-14         -14

x = -(14+9)

x = -23

please help w qn 3!!

Answers

Answer:

a) 67.8m

b) 36.8m

(both answers rounded off to 3 s.f.)

Step-by-step explanation:

Please see the attached pictures for full solution.

*Instead of rewriting PF to QF +43 in part (a), you could also leave PF as it is and rewrite QF as PF -43 after the line I labelled as equation 2. The working would be about the same, just that you would not need to add 43 again in picture 3 because we would be working with PF. (PF would be factorised out instead)

Find the perimeter of the quadrillateral. If x=2, the perimeter is ___ inches.​

Answers

Answer:

129 inches

Step-by-step explanation:

31+4(2²)+8(2)+7(2)+30+3(2²)-5(2)+20=

31+16+16+14+30+12-10+20=

129 inches

Answer:

129 inches

Step-by-step explanation:

got it right on edgenuity

Find the measure of an angle if its measure is 26 degrees more than three times its compliment?
16
141
74
42

Answers

The complement = x

The angle we are finding = 3x + 26

Complementary angles are angles that add up to 90 degrees.

90 = x + 3x + 26

Combine like terms

90 = 4x + 26

Subtract 26 from both sides

64 = 4x

Divide both sides by 4

16 = x

The angle we are trying to find = 3(16) + 26 = 48 + 26 = 74 degrees

At a supermarket, a 6-ounce bottle of
Usalad dressing costs $1.56. A 14-ounce bottle costs $3.36. A 20-ounce
bottle costs $5.60. Which bottle has the lowest cost per ounce?
MP.1

Answers

Answer:

The 14 oz bottle has the lowest cost per ounce.

Step-by-step explanation:

$3.36/14

What number needs to be added to 5 and 3 so that the ratio of the first number to
the second becomes 3:2?

Answers

4 can be added to 5, and 3 can be added to 3. This should then give you a ratio of 9:6, which reduces to 3:2!

So this is late help?

Answers

Answer:

area is 22 i think sorry if this doesn't help φ(* ̄0 ̄)

BTW i like ur username

Step-by-step explanation:

Solve the equation 5x+(-2)=6x+4

Answers

Answer:

x = -6

Step-by-step explanation:

Step 1: Write out equation

5x + (-2) = 6x + 4

Step 2: Simplify

5x - 2 = 6x + 4

Step 3: Subtract 5x on both sides

-2 = x + 4

Step 4: Subtract 4 on both sides

-6 = x

Step 5: Rewrite

x = -6

Answer:

x = -6

Step-by-step explanation:

[tex]5x+(-2)=6x+4[/tex]

Open the parenthesis

[tex]+(-2) =-2\\\\5x -2 =6x+4[/tex]

Collect like terms and simplify

[tex]5x-6x =4+2\\-x =6[/tex]

Multiply through by -1

[tex]-1(-x)=-1(6)\\\\x = -6[/tex]

47.469 rounded to the nearest foot

Answers

Answer: 47 ft

Step-by-step explanation:

10. The area of a square lot is 900 square meters. What is the perimeter of the tot, in maters?

Answers

Answer: 9000

Step-by-step explanation:

The expression -120+13m represents a submarine that began at a depth of 120 feet below sea level and ascended at a rate of 13 feet per minute. What was the depth of the submarine after 6 minutes?

Answers

Answer:  The depth was 42 feet below see level after  6 minutes

Step-by-step explanation:

If m represents the minutes then input 6 for m into the expression and solve.

-120 + 13(6)

-120 + 78  = -42

Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4

Answers

Answer:

5

Step-by-step explanation:

Occurs most often

Please help i will mark you five stars and give you 20 points

Answers

That would be a reflection

Answer:

Reflection

Step-by-step explanation:

4. Find the range of the relation y = 3x + 1 for the domain -1,0,3).

Answers

Answer:

all is pictured and shown

PLEASE I NEED THE ANSWER LIKE IN THE NEXT 10 MINS!!!!!

What is f(-2) of the function given below? F(x)=3x^2-4x+1

Answers

Answer: F=(x-1) (3x-1/x =21

Step-by-step explanation: Fx/x=3x^2-4x+1/x

The pre-image is...
What does a pre image mean

Answers

Answer:

i think it means pre image (plural pre images) (mathematics) For a given function, the set of all elements of the domain that are mapped into a given subset of the codomain; (formally) given a function ƒ : X → Y and a subset B ⊆ Y, the set ƒ−1(B) = {x ∈ X : ƒ(x) ∈ B}. The pre image of under the function is the set .

Step-by-step explanation:

Answer:

I forgot what the letter was for this option but The Pre image is a geometric shape BEFORE a transformation occurs ( I think that's option B but u should read it to be sure)

Step-by-step explanation:

Hope this helps I was kinda paying attention

solve this please.
[tex]3(m - 5) + 11 = - 85[/tex]

Answers

Answer:

Bro this some alien hyroglyphics

Step-by-step explanation:

Answer:

m = - 27

Step-by-step explanation:

Given

3(m - 5) + 11 = - 85 ← distribute and simplify left side

3m - 15 + 11 = - 85

3m - 4 = - 85 ( add 4 to both sides )

3m = - 81 ( divide both sides by 3 )

m = - 27

Write the expression using a positive exponent 8^-5

Answers

Answer:

1/8^5 is the simplified answer  

Step-by-step explanation:

A line passes through the points (3,7) and (5,19) Part A: find the slope

Part B: what is a possible equation of a line parallel to the line through (3,7) and (5,19)

Y=mx + b

Answers

Answer:

The slope is 6. For the first line you could do y=6x+7, and the line parallel to that could be y= 6x+3

Step-by-step explanation:

For it to be parallel the slopes have to be the same and the y intercepts (b) have to be different. And I found the slope by doing y-y/x-x

plug in you numbers 19-7/5-3= 12/2 = 6

Please answer this !I will mark it the brainiest!!

Answers

Answer:

The answer would be B

Step-by-step explanation:

PLz hurry i really need this okay

Answers

Answer:

Step-by-step explanation:

perfect squares=9,64,49

non perfect squares=24,88,6

The midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8), what are
the coordinates of B?

Answers

Answer:

Step-by-step explanation:

(x - 3)/2= 1

x - 3 = 2

x = 5

(y - 8)/2 = -2

y - 8 = -4

y = 4

(5, 4) coordinates for B

The coordinates of B are (5, 4) if the midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8),

What is an ordered double?

It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).

[tex]\rm Area = |\dfrac{(x_1y_2-y_1x_2)+(x_2y_3-y_2x_3)....+(x_ny_1-y_nx_1)}{2}|[/tex]

It is given that:

The midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8).

Let the coordinate of B is (x, y)

From the midpoint theorem:

(x - 3)/2= 1

x - 3 = 2

x = 5

For y coordinate:

(y - 8)/2 = -2

y - 8 = -4

y = 4

(5, 4) coordinates for B

Thus, the coordinates of B are (5, 4) if the midpoint of AB is M(1,-2). If the coordinates of A are (-3, -8),

Learn more about the order double here:

brainly.com/question/10757890

#SPJ2

37.67 x 70.71 (please show the work) but I need u to explain with numbers ​

Answers

37.67
x
70.71
————
2663.6457
Is that how you want it?

1. Which conditional statement has a true truth value? a. If a shape is a quadrilateral, then it is a square. b. If the sum of two numbers is positive, then both the addends are positive. c. If an angle has a measure of 180 degrees, then it is an acute angle. d. If a figure is a square, then it has four sides.

Answers

Answer:

B I believe

Step-by-step explanation:

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