Mathematics High School

Two trains leave stations 324 miles apart at the same time and travel toward each other. One train travels at 100 miles per hour while the other travels at 80 miles per hour. How long will it take for the two trains to meet? Do not do any rounding.​

Answers

Answer 1

Answer: The first train gets to the station in 3 hours 14 minutes, and 40 seconds if it is a consent speed of 100 mph The second train gets to the station in 4 hours and 3 minutes if it is a consent speed of 80 mph, so they would meet in 4 hours and 3 minutes.

Step-by-step explanation:

Related Questions

can someone do this for me i don't get it.

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1)
The answer is B, y=4x because the y column is always 4 times the x column

2)
Domain = (1,2)
Range = (5,6,7,8)
Function = there is no function because the x value has multiple y values associated with it

3) No
4) yes
5) Tia is correct because the y values are half of the x values

what is a domain in math?

Answers

Answer:

"In mathematics, the domain or set of departure of a function is the set into which all of the input of the function is constrained to fall."

Step-by-step explanation:

Ricky bought a jacket for $52.00. If the sales tax is 9.5%, how much did he pay in total?

A.$4.94

B.$61.50

C.$49.40

D.$56.94

Answers

Answer:

D. $56.94

Step-by-step explanation:

52 * 0.095 = 4.94

Add $52 + $4.94

What happens when we multiply conjugates
together?

Answers

basically when you foil inner terms cancel out

I need help pls !!!!!

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D is 77 and f is 55 yeah I don’t have an explanation

Solve the system below:
10x + y = 22
2x + x = -2

Answers

Answer:

x=negative 2/3,y= positive 86/3

Step-by-step explanation:

The gas tank holds a total of 15 gallons of gas.how many miles can the car travel with a full tank of gas

Answers

Answer:

....

Step-by-step explanation:

Answer:

If the car gets 30 in city miles per gallon it (MPG) would be 30×15 which would be 450 miles. If its a sportier car like the Chevrolet Camaro ZL1 which gets close to 18 miles per gallon (MPG) it would be 18×15 which would be 270 miles. There is also highway miles where a standard car would get about 40 or more miles per gallon (MPG) 40×15 which would be 600 Miles. For a car like the Toyota Prius which gets 50-58 miles per gallon (MPG) in a city but 48-53 miles per gallon 58×15=870 miles and 53×15=795 miles. It depends on the car's engine, tuning, transmission, aerodynamics, etc.

Step-by-step explanation:

Different cars get different miles per gallon (MPG).

Can someone help me please

Answers

The point at top will be -3,9
The point to the left will be -2,6
The point at the bottom will be 2,2
The point to the right will be 1,5

HELP PLZZ ITS DUE TODAY I WILL MARK BRAINEST

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i plotted the points in this photo. hope it helps :)

Can someone teach me how to do this im a good learner i just missed days

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I’m not very good at explaining but if we explain from the beginning the equation is y=m(x)+b and m means the slope while b means y- intercept so all you have to do is substitute these variables with the numbers in the problem basically it would be y=10x+10 also the picture attached is how you graph it. Hope this helped:)

Please help!! I'll give brainlist!

Answers

Answer:

-3/5

Step-by-step explanation:

-2/5+-1/5= -3/5

I used a calculator to ensure this answer was correct

Answer: A) -3/5
This is because -2 pulse -1 is -3. And you can’t add the denominator if it’s the same. In this case the denominators are the same so u keep it as 5. So the answer would be A

What is 3/4 raised to the power of 3

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[tex] ( { \frac{3}{4} })^{3} = \frac{ {3}^{3} }{ {4}^{3} } = \frac{27}{64} \\ [/tex]

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Will mark brainliest answer!
Ben wants to buy a new car stereo and he has already saved some money. He used this inequality to represent the amount he still has to save to be able to buy the stereo, where a represents the amount still left to save.

a + 212 greater-than-or-equal-to 365

If Ben saves $15 a week for the next 10 weeks, will he be able to buy the stereo and why?
No, because he needs to save at least $153, and he will only save $150 over the next ten weeks.
No, because he needs to save $577, and he will only save $150 more.
Yes, because he has already saved $365, and the stereo cost $212.
Yes, because he has already saved $212, and he will save another $150.

Answers

Answer:

No, because he needs to save at least $153, and he will only save $150 over the next ten weeks.

Step-by-step explanation:

Brainliest?

Answer:

the answer is A

Step-by-step explanation:

i got it right on the quiz

Please help
Please help please

Answers

dbhzhxgushshebnxjxjkxdhxhdh bdbdhxjdnbdbdb

Sushil was thinking of a number. Sushil divides by 7, then adds 12 to get an answer of 10. What was the original number?

Answers

Answer:

x=-14

Step-by-step explanation:

think the number is x

According to the question

x/7+12=10

=>x+84=70 (multiply both side by 7)

=>x=70-84

x=-14

PLEASE HELP WITH THE PIC

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D? Tell me if you got it right

What is the percent of change from 70 to 14?

Answers

Answer:

80%

Step-by-step explanation:

70-14=56

56/70=80%

Help me due in 5 minutes HELP ASAP

Answers

Answer:

J.

Step-by-step explanation:

It crosses through (0,0) and has a slope of 2.5 or rather 5/2 because when the x value is at 4 the y value is at 10 that simplifies to 5/2 or 2.5.

tell whether this sequence is arithmatic. If it is, what is the common difference. 10, 15, 21, 28

Answers

Answer:

No this is not arithmetic this is geometric

Step-by-step explanation:

10 to 15 is a increase of 5

15 to 21 is a increase of 6

21 to 28 is a increase of 7 arithmetic have to have steady increases

Answer:

Hola!

Step-by-step explanation:

State if the given functions are functions

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No, the functions shown are not inverses because the inverse for f(n)=-(n+1)^3would be f^−1(n)=−3√n−1.

Work out the size of x

Answers

Answer:

They are supplementary angles so they add up to make 180°

So you do the reverse

180°-100°=x

80°=x

Step-by-step explanation:

Please give me brainliest

Math question plz help me

Answers

Answer:

The required equation of the line is:

[tex]y=\frac{1}{4}x-1[/tex]

Step-by-step explanation:

Given the equation

[tex]y=-4x+3[/tex]

comparing the equation with the slope-intercept form

[tex]y=mx+b[/tex]

Here,

m is the slope y is the intercept

so the slope of the line is  -4.

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 1/4

Therefore, the point-slope form of the equation of the perpendicular line that also intersects the point (8, 1) is:

[tex]y-y_1=m\left(x-x_1\right)[/tex]

[tex]y-1=\frac{1}{4}\left(x-8\right)[/tex]

add 1 to both sides

[tex]y-1+1=\frac{1}{4}\left(x-8\right)+1[/tex]

[tex]y=\frac{1}{4}x-1[/tex]

Find the value y from the given figure

Answers

Answer:y=28

Step-by-step explanation:

40+3y+2y=180

Subtract 40

3y+2y=140

Combine like terms

5y=140

Divide

y=28

LM is the midsegment of trapezoid ABCD. If AB = 46 and DC = 125, what is LM?​

Answers

Answer:

LM = 85.5

Step-by-step explanation:

B1 + B2/2

46 + 125/2

LM = 85.5

Please answer correctly !!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!

Answers

Answer:

∠KNC = 99°

Step-by-step explanation:

∠JNM + ∠KNC = 180    (it is a straight line)

∠KNC = 180 - ∠JNM

∠KNC = 180 - 81

∠KNC = 99°

Answer: 99°

Step-by-step explanation: They are supplementary so 180 - 81 = 99

suppose 30% out of 500 students play an instrument describe one way to find 30% out of 500

Answers

Answer:

Multiply 500 by 0.30

Step-by-step explanation:

30% = 0.30 In Decimal Form

Multiply

500x0.30=150

150 Is 30% Of 500

30 x 100 = 3,000

3,000 divided by 500

Answer : 6

Solve for 3a:
a + 4 = 4a + 2
3a

Answers

Answer:

x = 2/3

2/3*3 = 2

Step-by-step explanation:

three more than the quotient of a number and 7 is at most 92. Find the number

Answers

Answer:

The number is 623.

Step-by-step explanation:

[tex]\frac{x}{7}+3 =92\\\frac{x}{7} =89\\x=623[/tex]

What is the prime factorization of 144? Be sure to show your strategy.

Answers

Answer:

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144. Prime factorization: 144 = 2 x 2 x 2 x 2 x 3 x 3, which can also be written 144 = (2^4) x (3^2)

Step-by-step explanation:

Which line below is parallel to the line that y = 1/2x - 2?
A) y = 1/2x + 2
B) y = -1/2x + 2
C) y = 1/2 - 2x
D) y= 1/2 + 2x

Answers

Answer:

The answer is b

Step-by-step explanation:

Bc it is just basicly the x and y axis

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