A train travels 360 km at a uniform speed, if speed has been increased it will take one hour less for the same journey then find the speed of the train.​​

Answers

Answer 1

Answer:

Given distance=360 km.

Let the speed of the train be x km/hr.

Speed when increased by 5 km/hr =(x+5) km/hr

x

360

(x+5)

360

=1

x(x+5)

[360x+1800−360x]

=1

x

2

+5x−1800=0

x

2

+45x−40x−1800=0

x(x+45)−40(x+45)=0

(x−40)(x+45)=0

x=40,−45

The speed of the train is 40 km/hr.

Step-by-step explanation:

thanks... ☺️

A Train Travels 360 Km At A Uniform Speed, If Speed Has Been Increased It Will Take One Hour Less For

Related Questions

Roy guessed that there were 15 baseballs in the bag, but when he
counted, there were really 18. What is the percent error?

Answers

Answer:

I believe it’s 16.7 correct me if I’m wrong.

7
4
8
1
Write down the largest even number
you can using all four cards

Answers

Answer:

8

7

4

1

Step-by-step explanation:

8 is the answer

Someone help and please make sure it’s right

Answers

Answer:

67 Degrees

Step-by-step explanation:

180 = x+79+34

180-79-34=x

67=x

Which of the following is the equation of a line that is perpendicular to the graph of y = 2/5x − 1?

Answers

Y=5/2x-1 that’s the answer

lines s and t intersect so that the measure of angle 1 is 85 degrees. if angle 2 is supplement to angle 1 what is the measure of angle 2 ​

Answers

Answer:

95 degrees

Step-by-step explanation:

The sum of two supplementary angles is 180 degrees

Given

angle 1 = 85 degrees

If angle 2 is the supplement of angle 1, then

<1 + <2 = 180

85 + <2 = 180

<2 = 180 - 85

<2 = 95degrees

Hence the measure of angle 2 is 95 degrees

At the movies, Jill and Carly each buy a
box of gummy candy. Carly eats 3 gummies
every 15 minutes during the movie. The
number of gummies Jill has left based on the
amount of time is shown in the graph below.

Answers

Answer:

where is the graph?

Step-by-step explanation:

I can't see the graph so I can't answer!

Write 33 % as a fraction in simplest form.
3

Answers

Answer:

33/100

Step-by-step explanation:

33/100 bc percentage goes up to 100

33/100 is correct there right !

A bag contains 3 red marbles. The ratio of red marbles to blue marbles is 3 : 7. Find the number of blue marbles in the bag.

Answers

Answer:

7 blue marbles

Step-by-step explanation:

because 3:7 equals red:blue so blue = 7

3:7
3=red
7=blue
There are 7 blue marbles in a bag.

If x is 4, what is:
x + 5


3x:

Answers

Answer:

1) x+5

(4)+5 =

9

2) 3x

3(4)

12

Step-by-step explanation:

Write the equation for the table.

Answers

Answer: y=20x+120

Step-by-step explanation:

test all things if it works then it's that

the boy knows his own height and can measure the length of his shadow as well as the length of the tree shadow. which postulate will allow the boy to find the height of the tree



A. ASA


B.AA


C.SAS


D.AAS

Answers

Answer:

Option C is correct.

Step-by-step explanation:

Here, boy knows his height and shadow length

And he know the length of tree shadow.

We need to find height of the tree.

And tree and it's shadow makes right angle at the point of intersection.

So, S A S rule works here.

Which method presented by teams in problem 8-48 seemed able to help find the area of other regular polygons? Discuss this with your team. Then find the area of the two regular polygons below. If your method does not work, switch to a different method. Assume c is the center of each polygon.

Answers

Create a poster or transparency that shows the two different methods that your team used to find the area of the regular hexagon in part (b) of problem 8-43. Then, as you listen to other teams present, look for strategiesthat are different than yours. For each one, consider the questions below. •Which geometric toolsdoes this method use? •Would this method help find the area of other regular polygons (like a pentagon or 100-gon)?8-45. Which method presented by teams in problem 8-44 seemed able to help find the area of other regular polygons? Discuss this with your team. Then find the area of the two regular polygons below. If your method does not work, switch to a different method. Assume Cis the center of each polygon.a. b. 8-46. So far, you have found the area of a regular hexagon, nonagon, and decagon. How can you calculate the area of anyregular polygon? Write a Learning Log entry describing a general process for finding the area of a polygon with nsides. 8-47. Beth needs to fertilize her flowerbed, which is in the shape of a regular pentagon. A bag of fertilizer states that it can fertilize up to 150 square feet, but Beth is not sure how many bags of fertilizer she should buy. Beth does know that each side of the pentagon is 15 feet long. Copy the diagram of the regular pentagon below onto your paper. Find the area of the flowerbed and tell Beth how many bags of fertilizer to buy. Explain how you found your answer. 15 ft 5 C 11 C

30 mins left please help 50 points

Answers

Answer:

B is the answer.

Step-by-step explanation:

Trust me.

1) calcula a.b , si 120 =1+2+3+... +ab ​

Answers

Answer:

ab=195

Step-by-step explanation:

F a student drives 30 miles north, the 40 miles east, then 60 more miles north and finally 80 more miles east, exactly how far is she from her starting point? (As the crow flies.)

Answers

Answer:

150 miles

Step-by-step explanation:

The movements are represented as:

[tex]N1 = 30miles[/tex]

[tex]E1 = 40miles[/tex]

[tex]N2 = 60miles[/tex]

[tex]E2 = 80miles[/tex]

Required

Determine the distance from the starting point

The student's movement is illustrated with the attached image.

First, calculate the total distance towards North.

[tex]N = N1 + N2[/tex]

[tex]N = 30 + 60[/tex]

[tex]N = 90[/tex]

Next, calculate the total distance towards East

[tex]E = E1 + E2[/tex]

[tex]E = 40 + 80[/tex]

[tex]E = 120[/tex]

The total distance from the starting point is calculated using Pythagoras theorem.

[tex]D^2 = N^2 + E^2[/tex]

[tex]D^2 = 90^2 + 120^2[/tex]

[tex]D^2 = 22500[/tex]

[tex]D = \sqrt{22500[/tex]

[tex]D = 150[/tex]

−2x=x2−6 Rewrite the equation by completing the square.

Answers

Answer:

(x + 1)² = 7

Step-by-step explanation:

Given:

-2x = x² - 6

We'll start by rearranging it to solve for zero:

x² + 2x - 6 = 0

The first term is already a perfect square so that's fine.  Normally, if that term had a non-square coefficient, you would need to multiply all terms a value that would change that constant to a perfect square.

Because it's already square (1), we can simply move to the next step, separating the -6 into a value that can be doubled to give us the 2, the coefficient of the second term.  That value will of course be 1, giving us:

x² + 2x + 1 - 1 - 6 = 0

Now can group our perfect square on the left and our constants on the right:

x² + 2x + 1 - 7= 0

x² + 2x + 1 = 7

(x + 1)² = 7

To check our answer, we can solve for x:

x + 1 = ± √7

x = -1 ± √7

x ≈ 1.65, -3.65

Let's try one of those in the original equation:

-2x = x² - 6

-2(1.65) = 1.65² - 6

- 3.3 = 2.72 - 6

-3.3 = -3.28

Good.  Given our rounding that difference of 2/100 is acceptable, so the answer is correct.

pls help question is in the picture

Answers

Answer:

x = 5

Step-by-step explanation:

Sum up all the angles in a triangle is 180 degree, so 4x + 135 + 25 = 180, solve for x get x = 5

36/2^5 over 8+7x(3+11)

Answers

Answer:

119.25

Step-by-step explanation:

36/32 simplified is 9/8.

8 + 7(3+11), I'm assuming it's not x.

8 + 7(14) = 106

(9/8)/106 = 9/8*106 = 954/8 = 119.25

Hope this helps, lmk if the "x" is actually a variable instead of multiplication :)

y/7=2
helpppppppppppppp

Answers

Answer:

y=14

Step-by-step explanation:

1.Multiply all terms by the same value to eliminate fraction denominators

2. Simplify it and it gives you 14

may someone please help?

Answers

(-7,3) here is the answer, easy one

Answer:

B' = (-7,3)

Step-by-step explanation:

B = (7,3)

mirrored would be:

B' x position would be -7

B' y position would not change

B' = (-7,3)

Please help! ill give 50 brainly points!
4/sqrt10-sqrt6

Answers

Answer:

-1.18

Step-by-step explanation:

4/√10 - √6

= (4-√60) /√10

= -1.18 (3 sig. fig.)

Answer:

−8+2/5√10(Decimal: -6.735089)

Step-by-step explanation:

Thats the answer ._.


Please help me ASAP



What is 7/16 x 1/2

Answers

Answer: 7/32

Step-by-step explanation:

Multiply straight across the numerator and do the same for the denominator.

7x1=7 (numerator)

16x2=32 (denominator)

Answer is 7/32

Brian drew these angles. He uses the equation 180-Y=50. To find the measure of angle Y. What is the measure of angle Y?

Answers

Answer:

130

Step-by-step explanation:

180-130=50  

For this item, complete the choice matrix by clicking the appropriate answer in each row.

Consider polygon
UVWXY

Polygon UVWXY is reflected across the y-axis to form polygon U′V′W′X′Y′. Determine the measures of the following angles.
Determine the measures of the following angles.
m∠V′
m∠X′
m∠Y'
the measurements are 76∘, 102∘, 133∘, and 136∘ match the measurement to the angles when reflected across the y-axis

Answers

Answer:

hi i suck at math

Step-by-step explanation:

A group of friends were working on a student film. They spent all their budget on props and equipment. They spent $912 on props, and 24% of the total budget on equipment. What was the total budget for their student film?

Answers

Answer:

Total Budget: $1200

Step-by-step explanation:

76% = 912

1% = 12

100% = 12 x 100 = $1200

I brute forced till I got the number which multiplied by 76 came out to 912 from there I had what was 1% of the budget then I multiplied that by 100 for the answer.

The total budget for their student film is $1200.

What is the percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100.

A group of friends were working on a student film.

They spent all their budget on props and equipment.

They spent $912 on props, and 24% of the total budget on equipment.

Let us represent the total budget of the film as: x

The amount spent on equipment = $870

The amount spent on props = 24% of x

Total budget = Amount spent on equipment + Amount spent on props

x = 912 + 24% of x

x = 912 + 0.24x

x - 0.24x = 912

0.76x = 912

x= 912/0.76

x = $1200

Hence, the total budget for their student film is $1200.

Learn more about percentage here;

https://brainly.com/question/19389772

#SPJ2

Rewrite in simplest terms: -3(-10d+8)+3d

Answers

Answer:

-27+33d

Step-by-step explanation:

-3 is the multiplier for the numbers in the bracket

-3+30d-24+3d

-3-24+30d+3d

-27+33d

Identify the rule in each sequence (1 & 2 in sentence form only) and extend the sequence with three more terms

1. 1, 3/2, 2, 5/2, 3... __, __, __
2. 1, 4/3, 5/3, 2, 7/3... __, __, __
3. 3/2, 2, 5/2, 3, 7/2... __, __, __
4. 1, 4, 16, 19, 76... __, __, __


Note: In number 3 and 4, the rule may be written in sentence form or in terms of n, wherein n = 1, 2, 3, 4, 5...

Answers

Answer:

steps below

Step-by-step explanation:

1. 1 + 1/2*(n-1) : 3, 7/2, 4, 9/2

2. 1 + 1/3*(n-1): 7/3, 8/3, 9/3, 10/3

3. 3/2 + 1/2*(n-1): 4, 9/2, 5

4. 1, 4, 16, 19, 76...79, 316, 319, 1276  ...  

Which values are solutions to the inequality below?
Check all that apply.
Sqrt x > 8

Answers

Answer:

64 is the right answer of your question

Please help me with my work

Answers

Answer: A

Explanation: If you solve by graphing, you get one intersection which is (14, 2).

please help me on this !

Answers

Answer:

x[tex]\leq[/tex]-3

Step-by-step explanation:

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