Two trains leave towns kilometers apart at the same time and travel toward each other. One train travels slower than the other. If they meet in hours, what is the rate of each train

Answers

Answer 1

Complete question :

Two trains leave towns 1180 kilometers apart at the same time and travel toward each other. One train travels 19km/hr slower than the other. If they meet in 4 hours, what is the rate of each train

Answer:

138 km/hr ; 157 km/hr

Step-by-step explanation:

Distance apart, d = 1180

Let :

Speed of A = x

Speed of A, = x - 19

Meeting time = 4 hours

Distance covered by A + Distance covered by B = total distance

Distance = speed * time

4 * (x - 19) + (4 * x) = 1180

4x - 76 + 4x = 1180

8x = 1180 + 76

8x = 1256

x = 1256 / 8

x = 157 km/hr

Speed of other train : (x - 19) = 157 - 19 = 138 km/hr


Related Questions

How does changing the slope effect the parent function? How does changing the y-intercept effect the parent function?

Answers

Answer/Explanation:

When you change the slope, it will affect the steepness of the graph/line.

When you change the y-intercept (b) it will affect where the graph crosses the y axis.

-increasing the y-intercept will make the graph move up and

decreasing will make the y-intercept go down.

1. Find speed when, distance is 142 km and time is 2 hours.

Answers

Answer:

BROO IS THAT RM FOR YOUR PFP?!

Step-by-step explanation:

speed = 71km/hr .....

If x is a whole number which value for x will make 7 < 3x < 9 a true statement
a. 8
b. 2
c. 0
d. 1
e. none of the above

Answers

D is the correct answer

Elena got on 25 of her mom's nerves. Later, she gets on 7 more. How many nerves of her mother did Elena trigger?

Answers

Answer:

the last one lol- thats just how it works

I need help someone please help me

Answers

Answer: That's easy but you have to offer more points

Classify the following as a monomial, binomial, or trinomial: 4x - 10xy

Answers

Answer:

hey

Step-by-step explanation:

PLEASE ANSWER FAST
Zina borrows $560 at 0.3% interest compounded monthly
When Zina pays the loan back 8 months later, how much
interest does Zina pay?
A. $573.58
B. $13.58
C. $13.44
D. $1133.58

Answers

The answer is in the picture. Let me know if you have any questions.

Two cars leave the same parking lot, with one heading north and the other heading east. After several minutes, the eastbound car has traveled 2 kilometers. If the two cars are now a straight-line distance of 4 kilometers apart, how far has the northbound car traveled? (use){Pythagorean theorem}[tex]a^{2} +b^{2} =c^{2}[/tex]

Answers

Answer:

Step-by-step explanation:

G

Answer:

[tex]\sqrt{12}[/tex]

Step-by-step explanation:

[tex]\sqrt{4^2-2^2} =\sqrt{12}[/tex]

Hence, the answer is [tex]\sqrt{12}[/tex].

Please mark as Brainliest!

What is the solution to the trigonometric inequality 2sin(x)+3> sin^2(x)

Answers

Answer:

[tex]-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi[/tex]

Step-by-step explanation:

Given:

[tex]2\sin(x)+3> \sin^2(x)[/tex]

To Find:

The Solution of the above inequality

Explanation:

[tex]2\sin(x)+3> \sin^2(x).......(i)\\\text{let} \sin (x) = u\\\Rightarrow 2u+3> u^2\\\Rightarrow u^2-2u-3<0\\\Rightarrow u^2-3u+u-3<0\\\Rightarrow u(u-3)+1(u-3)<0\\\Rightarrow (u+1)(u-3)<0\\\Rightarrow -1<u<3\\\text{and since} \sin(x) = u\\\Rightarrow -1<\sin(x)<3[/tex]

[tex]\text{as if} \;a<u<b \Rightarrow a<u \;\text{and}\; u<b\\\Rightarrow -1<\sin(x) \; \text{and} \; \sin(x) <3\\-1<\sin(x) \; : -\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi\\\text{and}\; \sin(x) <3 : \text{true for all } x \in R\\\text{Now, combining the intervals we get}\\-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi \; \text{and} \; \text{true for all } x \in R\\-\frac{\pi}{2}+2n\pi<x<\frac{3\pi}{2}+2n\pi.[/tex]

help a g out plz I’ll give a brainliest ‍♀️

Answers

Answer:

(c-a,b)

Step-by-step explanation:

Bottom of shape is equal to 4a, or c.

R is to be located at (3a, b)

c-a=3a, ∴r: (c-a,b)

There are
windows for every 3penguins.
There are
windows for every 11 penguin.

Answers

Answer:

in the first 18 and the second 6

In the first 18 the second 6

Please help me with this question for brainliest.

Answers

Answer:

1)

proportional relationship )

2)unit rate

3)constant of proportionality

Step-by-step explanation:

The area of the rectangle is 34 square meters. Find the length and the width.
(x-4) meters
(x+11) meters

Answers

Answer:

2 and 17

Step-by-step explanation:

34=(x-4)(x+11)

34=[tex]x^{2} \\[/tex]+7x-44

x^2 +7x -78=0

x=6

6-4=2

6+11=17

[Function Composition] could someone help me with this answers or show work either is fine

Answers

Answer:

The required answer is 100 .

Step-by-step explanation:

Given function to us is ,

⇒ f(n) = 4n + 2 . And we need to find (f • f) (-3)

So , first let's find f•f , which will be ,

⇒ (f • f) = (4n + 2)(4n + 2)

⇒ (f • f) = 4n ( 4n + 2 ) +2 ( 4n + 2)

⇒ (f • f) = 16n² + 8n + 8n + 4

(f f) = 16n² + 16n + 4

====================================

Now we need to find (f • f)(-3) . So on substituting f = (-3) , we have :-

⇒ (f • f)(n) = 16n² + 16n + 4

⇒ (f • f)(-3) = 16*(-3)² + 16*(-3) + 4

⇒ (f • f) (-3) = 16* 9 - 48 + 4

⇒ (f • f)(-3) = 144 - 44

( f f) (-3) = 100

Hence the value of ( f f)(-3) is 100 .

PLEASE HELP!!-What two rotations would provide the following images.

Answers

Reflection and rotation

determine the function represented by the table is linear. Explain.
x: -12, -2, 6, 18
y: -3, -8, -11, -17

Answers

Answer:

i needs the points foo

Step-by-step explanation:

pLZZZZZ heLp me AN swer this questin!!!!!

1+1x2+3=

PLZZZZZ

Answers

Answer:

6

Step-by-step explanation:

Pls mark brainliest.

ANSWER: 6


Use PEMDAS hope this helps :)

Is your grade level (9th, 10th, etc.) independent of your height? Why or why not? Type your answer below.​

Answers

Hey there!

The answer is yes, because it does not depend on your height, because you can be any height in any grade (well, maybe not ANY height, because you can't be, like, 100 feet, or 1 inch, but you get the point...).

Hope it helps and have a great day!

I need some help on this, solution ?

Answers

Answer:

Step-by-step explanation:

180°(n - 2)

180°(5 - 2) = 540°

540° - (112° + 98° + 110° + 118°) = 102°

q = 28°

r = 32°

s = 78°

t = 118°

u = 50°

The population of a town was 25000 in the 2000 census and and 30000 in 2010 census. By what percent did the population increase

Answers

Answer: This means that the population increased a 20% between the year 2000 and the year 2010.

Step-by-step explanation:

In this case, we have that 25,000 is the 100%.

Now we want to know which percentage represents 30,000

Let's suppose that the percentage is X.

Then we can have a system of equations:

30,000 = X

25,000 = 100%

To find the value of X, we can take the quotient of these two equations:

30,000/25,000 = X/100%

(30,00/25,000)*100% = X = 120%

Then in the 2000 we had a 100%, and in the 2010 there was a 120%.

The difference is:

120% - 100% = 20%

This means that the population increased a 20% between the year 2000 and the year 2010.

What is the total cost of a $95.00 item with a sales tax of 6%

Answers

Answer: $100.70

Step-by-step explanation: 6% is equal to 0.06, so you can add multiply the price of the item by 1.06 because that is the base cost plus the tax. Then you get $100.70.

Answer:

100.70

Step-by-step explanation:

95.00*6%

95.00*.06=5.70

95.00+5.70=100.70

Find the area of this semi-circle with radius,

r = 10cm.
Give your answer as an expression in terms of
π

.

Answers

The answer is 314.16cm²

Answer:

is shown in figure

area of semi-circle= 157.14

where,

[tex]\pi = 3.141592654 \\ or \: \frac{22}{7} [/tex]

Lexi say that -68 feet is a greater depth than- 75 feet, since-68>-75. Is Lexi correct? Explain

Answers

Answer:

No

Step-by-step explanation:

When working with negative numbers in terms of depth, greater depth are depicted by values as we move farther to the left of the number line.

With this in mind, - 75 feets is farther to the left of the number line and as such represents a greater depth value Than - 68 feets

Therefore, when expressing depth or elevation distances, the values should be iewwd in absolute terms. Then |75| > |68|. While bearing in mind that depth is downward and thus negative

Help Please

An absolute value function with a vertex of (4,14) is negative on the interval (−∞,−2). On what other interval is the function negative?

(10,∞)

(14,∞)

(−2, 2)

(9,∞)

Answers

Answer:

Its (10,∞)

Step-by-step explanation:

Trust me I just took the exam and got it correct

At a bake sale, a total of 80 cookies were sold. If the ratio of chocolate chip cookies sold to oatmeal cookies sold was 9 : 1, how many chocolate chip cookies were sold?

Answers

Answer:

7,1

Step-by-step explanation:

80 divided by 9 times 8 i think

Help plssssss this is due today! This composite figure is made up of three simpler shapes. What is the area of the figure?

Answers

The correct answer is D- 55 square cm

Answer:

D 55 sqaure cm

Step-by-step explanation:

Which rectangles are similar?

Answers

Answer:

It should be 1 and 3, but for it to be perfectly correct, it should be 17.6 and not 17.4

the answer is 1 and 3. since it isn't exact.

Need help, describe in parts

Answers

Answer:

Step-by-step explanation:

1a= 6/14=3/7

1b= 5/18

2= 1/2 of 7/8=1/2 x 7/8=7/16

Kadeem is making two drawings of an oak leaf. The dimensions of the first drawing will be 1/3 the dimensions of the leaf. The dimensions of the second drawing will be 2 1/2 the dimensions of the leaf. If the oak leaf is 5 1/2 inches, will the length of each drawing be equal to, greater then, or less than 5 1/2 inches?

Answers

Answer: See explanation

Step-by-step explanation:

The dimensions of the first drawing will be 1/3 the dimensions of the leaf and the dimension of the oak leaf is 5 1/2 inches. Therefore, the dimensions of the 1st leaf:

= 1/3 × 5 1/2

= 1/3 × 11/2

= 11/6

= 1 5/6 inches

This is less than 5 1/2 inches

The dimensions of the second drawing will be 2 1/2 the dimensions of the leaf. This will be:

= 2 1/2 × 5 1/2

= 5/2 × 11/2

= 55/4

= 13 3/4 inches

Thus is greater than 5 1/2 inches

what expression is equivalent to 5-3(6x+2)

Answers

Answer: −18x-1

Step-by-step explanation: Hope this helps

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