Train A leaves the station traveling east at 50 mph while train B leaves the station 30 minutes later traveling west at 65 mph. Choose the equation below that represents the distance in miles between the two trains, D, as a function of T, the time in hours after train B has departed.

Answers

Answer 1

Answer:

Change 45 min to .75 hrs

Distance = speed * time

Train A's distance = 55(t+.75)

Train B's distance = 70t

The equation

D(t) = 70t + 55(t+.75)


Related Questions

Find the slope of the line.
The slope of the line is
(I have 10 min left pls help asap)

Answers

Answer:

8/4 = 2

Step-by-step explanation:

I NEED HELP PLEASE THANK YOU ​

Answers

Answer:

d

Step-by-step explanation:

if you tried to do the d you would end up with this

/_)

Which is equivalent to (4 x y minus 3 z) squared, and what type of special product is it
question answer choices are:
A. 16 x squared y squared + 9 z squared, the difference of squares
B. 16 x squared y squared + 9 z squared, a perfect square trinomial
C. 16 x squared y squared minus 24 x y z + 9 z squared, the difference of squares
D. 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial

Answers

Answer:

The answer is option D

Step-by-step explanation:

When factored out option C and D are the same but it is a perfect square, not the difference of squares.

Option (D) 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial is the correct answer.

What is an algebraic expression?

An expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Algebraic expressions include at least one variable and at least one operation.

For the given situation,

The expression is (4xy-3z)^2.

This expression can be expand by using the formula,

[tex](a-b)^{2} = a^{2} -2ab+b^{2}[/tex]

Here, a = 4xy and b = 3z

⇒ [tex](4xy)^{2} -2(4xy)(3z)+(3z)^{2}[/tex]

⇒ [tex]16x^{2} y^{2} -24xyz+9z^{2}[/tex]

Hence we can conclude that option (D) 16 x squared y squared minus 24 x y z + 9 z squared, a perfect square trinomial is the correct answer.

Learn more about algebraic expression here

https://brainly.com/question/19245500

#SPJ2

if you bought a stock last year for the price of $54 it and it risen 1.9 since then how much was the stock worth now to nearest cent​

Answers

The answer to this question is $66.7

PLS HELP ASAP! GIVING BRAINLY!!

Answers

Answer:

A

Step-by-step explanation:

1-0.045=0.955

Shane works at an electronics store. he earns 13% comission on his sales. Shane's comission this month $780. what are his total. sales for this mounth?​

Answers

Answer:

$6000

Step-by-step explanation:

let's find the unit rate first

we know that 780 is 13% of all his sales so what we can do is find the unit rate

780/13=60 so 1% of all the money is $60

Now we just do simple multiplication; 60*100=6000

So the original sale was $6000

Hope this helped, have a good day!

Answer:

6000

Step-by-step explanation:

780/13 = 60 (100)

           = 6000

What is the measure of angle P?

Round only your final answer to the nearest hundredth.

Answers

Answer:

i think its 130

Step-by-step explanation:

hope this helps? :|

please help me


The lengths of a triangle are 50 m, 120 m, and 130 m. Which formula could be used to show that the triangle is a right triangle?

A. 502 + 1302 = 1202
B. 1202 + 502 1302
C. 1302 + 1202 = 502
D. 502 + 502 1202​

Answers

Answer:

Step-by-step explanation:

1302 + 1202 = 502

Answer:

1302 + 1202 = 502

Step-by-step explanation:

Cant really explain. 1302 + 1202 = 502

Please help me I just don't understand!!!!!!!!!!!!!

Answers

Answer:

Oh the answer is C

Step-by-step explanation:

Answer:

Volume of a Cylinder - h(pi)(r)^2

V=15(3.14)(4^2)

V=15(16)(3.14)

V=240(3.14), or 240 pi

The answer is D. 240pi or 753.98

Let me know if this helps!

I need help, I’ve been stuck on this question plz

Answers

Answer:

when distributing the first equation 1/4(8y+24) it is actually 2y+6 because 1/4*24= 6 not 8

Step-by-step explanation:

help me please it's due today

Answers

Answer:

15, 16,31

Step-by-step explanation:

The rule is that each time you add by 7, like in the first 2.  4+7=11 and 7+7=14

hopefully this helps! 8-15 16-23 24-31

Solve for c, giving brainliest. please show your work/explain, i got to the point of square rooting 185, but i don't understand where to go from there if it cannot be simplified. Thanks.

Answers

Answer:

13.6 in

Step-by-step explanation:

Please refer to the attachment

Dave purchased 3 notebooks for a cost of $6.29 each before tax. He gave the cashier
$20.00. If the sales tax on his purchase was 6%, how much money should Dave have
received back from the cashier, to the nearest penny?

Answers

$0=20-3*6.29*1.06
(Actually he’s short 2 thousandths of a penny)

(I’M MARKING BRAINLIEST)


Plzzz help meeeeee!!!

Answers

0,0 1,6 2,12 3,18 and the second graph. have a great day

Describe these points with a double inequality

Answers

Answer:

E

Step-by-step explanation:

so much words sis sossy

Answer:

Step-by-step explanation:

[tex]-3$<$ x\le 13[/tex]

The following triangles are congruent by____

AAS
SAS
ASA
Can't determine

Answers

Answer:

hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm ihnc

Step-by-step explanation:

Can someone please help mee

Answers

it’s B

you want to get the x by itself on one side. so subtract 71 from both sides. 5x>=-85. divide both sides by 5, and x>= -17

This is proportional, true or false? (Proportional means it has an equivalent ratio/constant rate of change/the same rate) (True=yes, it's proportional, false means it is not proportional) y = 12x

Answers

Answer:

Yes/True

Step-by-step explanation:

The given expression is :

y = 12 x

We know that, Proportional means it has an equivalent ratio / constant rate of change / the same rate.

Here,

y ∝ x

12 is the constant of proportionality

Hence, the given expression is proportional.

please help me Find the quotient of 24 and 12.

Answers

Answer:

2

Step-by-step explanation:

24/12 = 2

Answer:2??????? Are you dividing 24 by 12????

Step-by-step explanation:

If f(x) = 5x – 2 and g(x) = x+1, find (f = g)(x).
OA. 5x - x-3
B. 5x2 +1
O C. 5x® - X-1
D. 5x4 - 2

Answers

Answer: Choice A) 5x^3 - x - 3

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

Work Shown:

We subtract the two functions like so

(f - g)(x) = f(x) - g(x)

(f - g)(x) = ( 5x^3-2 ) - ( x+1 )

(f - g)(x) = 5x^3 - 2 - x - 1

(f - g)(x) = 5x^3 - x - 3 ..... choice A

Note: be sure to remember to distribute the negative to every term inside (x+1), and not just to the x only.

What is 25% of 14 I need help ASAP

Answers

Answer:

3.5

Step-by-step explanation:

25*14= 350

350/100

3.5

Answer:

25% of 14 =

3.5

Step-by-step explanation:

hope this help have a good day

answer this in 40 seconds for brainiest:)

Answers

Answer:

15

Step-by-step explanation: multiply 3x5 lol

I need help with this please !

Answers

Answer:

1 or 2

Step-by-step explanation:

Both look wrong, but 1 seems worse. Sorry if this is wrong.

Answer:

step 2 is wrong...-4-3=-7

Step-by-step explanation:

Write an equation that you can use to solve for x.

Enter your answer in the box.

Answers

Answer:x= 40

Step-by-step explanation:

x+80+60= 180 (angles on a straight line)

10 times the difference of y and 5?

Answers

Answer:

10(y-5)

Hope this helped!!

A circular trampoline has a radius of 8 feet. Wendy wants to buy a cover for the trampoline. What will be the area of the cover?
8 square feet
16 square feet
645 square feet
2560 square feet

Answers

The answer is b- 16 square feet.

What is the power of 15?
PLS ANSWER QUICKLY! :(

Answers

Answer:

165

Step-by-step explanation:

165 shoukd be

Look at the number line.
+++
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5
Which absolute value expression represents the distance
shown on the number line?
OA) 12.5 + 5
OB) 12.5 - 5
OC) 12.50 – 151
OD) 12.5] + 151

Answers

This is so confusing. I don’t understand it

hello someone help please

Answers

Answer:

b. the y-intercept is 2

Step-by-step explanation:

i hope this helps :)

Answer:

I think it's b

Step-by-step explanation:

I remember doing this before

Rewrite 0.361 as a fraction in lowest terms.

Answers

Answer:

361/1000

Step-by-step explanation:

this should be the answer

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