A train with a mass of 1570 kg is moving at 3.2 m/s collides with a train at rest with a mass of 1224 kg. They stick together and move as one. What is the velocity of both trains together?
m1V1 + m2V2 = total total

Answers

Answer 1
For some reason when I type the answer in for you it says incorrect

Related Questions

Need this !!!! Badly

Answers

Answer:

78

Step-by-step explanation:

I NEED HELP ASAP

the table shows how much jose earns at his part-time job. at the rate he is paid,how much would jose make if he worked 9 hours

Answers

I think the answer is Class B

Answer:

Its B

Step-by-step explanation:

see if you divided all the classes money by their students you take the biggest amount from each class and that is your answer

A rectangle has a length of 16 inches, and the length of the diagonal is 20 inches. What is the width
of the rectangle, in inches?

Answers

Answer:

29

Step-by-step explanation:

Answer:

The width of the rectangle in inches is 12 inches.

Step-by-step explanation:

Hope this helps :)


Luis saved 5/8 of his pay. What percent of his pay did he save?

Answers

It’s 62.5%

Have a great day! The steps are down below

What would x equal for this equation

Answers

Answer:

15

Step-by-step explanation:

3*5

Help ASAP I give you a cookie after you answer:)

Answers

75. 36 is the answer!!!

64° (3x + 1)º Find the value of x. I need help!!
A 21
B 27
C 51
D 14

Answers

Answer:

Take away 1 from either side so the equation becomes 63=3x then divide both sides by 3 so it becomes 21=x which is your answer (option A)

Step-by-step explanation:

One scoop of ice cream weighs
about 3 ounces. Last Thursday the
ice-cream parlor used 18 pounds of
ice cream. About how many scoops of
ice cream were served last Thursday?

Answers

Answer:

96 scoops

Step-by-step explanation:

First, Convert 18 pounds to ounces and that is 288 ounces

Next, Divide 288/3=96

HELP PLEASE ASAP PLS PLS PLS

Answers

Answer:

Step-by-step explanation:

In the diagram, △ABC∼△CDE. Write an equation for line k

Answers

Answer:

Step-by-step explanation:

Line AB is parallel to line CD (k) so they have the same slope.

slope=m=(y2-y1)/(x2-x1)

m=(6-0)/(4-0)

m=6/4=1.5

y=mx+b, we know m=1.5 so

y=1.5x+b, and we know it passes through point (4,0) so we can solve for b

0=1.5(4)+b

0=6+b

b=-6 so line k is

y=1.5x-6

Someone plz help me giving brainliest

Answers

Answer:

1. ROUND

2. COMMUNITIVE

3. AREA MODEL

4. MIXED NUMBERS

FALSE

FALSE

TRUE

TRUE

Step-by-step explanation:

HOPE THIS HELPS YOU OUT! BE THE FIRST TO COMMENT /FREE ON THESE COMMENTS TO GET A FREE BRAINLIY AWARD! PLZ ALSO CONDISER MARKING ME BRAINLIEST AND THANKS! MY JOURNEY HAS JUST BEGAN ON BRAINLY SO ASK ME IF U HAVE ANY QUESTIONS! -BEACHVIBES23

Tracy works at Garcia’s Mexican restaurant every day from 12-8
p.m. She makes $7.25 per hour. How much money does Tracy make
in 8 hours?

Answers

I’m going to assume you aren’t deducting taxes from your total. so, your answer would be $58.

hope this helps
thanks for the free points;)

Write an equation in point-slope form of the line through point J(9,-8) with slope 2. y + 8 = 2(x 9) b. y + 8 = 2(3-9) 1 + 8 = 2(x +9) d. 1 - 8 = 2(x + 9)​

Answers

Answer:

y +8= 2(x-9)

Step-by-step explanation:

7a + b - 12 wich is the coefficient?

Answers

coefficient = 7 and 1
7 is the coefficient of a
1 is the coefficient of b
The coefficient is 7

Miles read 4 books in the first half of March. By the end of March, the library had added Miles to the top-readers board for reading more than 10 books in a month.Let x represent how many books Miles read in the second half of March. Which inequality describes the problem?

Answers

Answer:

[tex]x>6[/tex]

Here, [tex]x[/tex] denotes number of books read by Miles in the second half of March

Step-by-step explanation:

Given: Miles read 4 books in the first half of March.

Also, Miles read more than 10 books in a month.

[tex]x[/tex] denotes number of books read by Miles in the second half of March.

To find: inequality that describes the problem.

Solution:

Total number of books read in month of March = Number of books read by Miles in the first half of March + Number of books read by Miles in the second half of March =  [tex]4+x[/tex]

Also, Miles read more than 10 books in a month.

Therefore,

[tex]4+x>10\\x>10-4\\x>6[/tex]

need help on my geomrty homework

Answers

The first one is the correct answer

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

You like to lift weights!!!!

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

can someone please like pretty please help me with this? i seriously need help and my teacher won’t help me with it even after I’ve told him I don’t understand it and it’s about to be due and Emmy whole grade depends on it and I have no idea how to solve it ! I’ll mark you brainleist and give a 5.0 rating, PLEASE HELP !!

Answers

Answer:

She made $1230 more on printed shirts than plain shirts in 25 weeks.

Step-by-step explanation:

Hi,

Okay, I have to admit, this is pretty complicated. But, it's not impossible :) First things first, we know that the equation in the table is the number of shirts sold after W number of weeks. We know that we need to, first, find the total number of shirts sold in 25 weeks.

The equation for the plain shirts is 5w -4. Let's start with that.

Plugin 25 for w to find the total number of plain shirts sold after 25 weeks.

5w - 4

5(25) - 4

= 121

She sold 121 plain shirts after 25 weeks. But we're not done yet, we still have to see how much money she made after selling 121 plain shirts. To do this, we have to multiply the total number of plains shirts sold by 15. (we know that each plain short costs $15, that's why we're multiplying it by 121)

When you do this...

121 x 15

You get...

$1815

She got $1815 after 25 weeks just for selling plain shirts.

Now, let's find the total cost of printed shirts after 25 weeks.

The equation for the printed shirts if 8w + 3.

8w + 3

8(25) + 3

= 203

She sold 203 printed shirts in 25 weeks. Let's find the cost. Each printed shirt costs $15 so we need to multiply 203 by 15.

203 x 15

You get...

$3045

She made $3045 by selling printed shirts in 25 weeks.

Now, we have to subtract $3045 by $1815 to find how much more she made. You get...

3045 - 1815

= $1230

She made $1230 more on printed shirts than plain shirts in 25 weeks.

I really hope this helps :)

Which expression is equivalent to (8m + 6) + (3m - 2) ?

Answers

Answer:

(11m-4)

Step-by-step explanation:

8m+3m=11m

6-2=4

The answer to the question is 11m+4

1
4
Solve
+
6 3
Plzzzzzzz helllllpppppppppppp

Answers

Answer:

77

Step-by-step explanation:

 14

+63

____

  77

Need help with this trigonometry word problem
From the top of the tower 30 m height a man is observing the base of a tree at an angle of depression measuring 30 degree. Find the distance between the tree and the tower.
Please show your work

Answers

Answer:

  30√3 m ≈ 52 m

Step-by-step explanation:

The side ratios in a 30°-60°-90° triangle are 1 : √3 : 2. The long leg of the triangle is √3 times 30 m, or about 51.96 m.

The distance between the tree and the tower is about 30√3 m ≈ 52 m.

__

If you haven't memorized the ratios of this special triangle, you can use the relation ...

  Tan = Opposite/Adjacent

  tan(30°) = 30/d

  d = 30/tan(30°) = 30√3 = 51.96 . . . . same as above

Find the area of triangle ABC (I’ll give you the branliest answer if correct) :)

Answers

I can't see pictures T^T.

To find the are of a triangle, you multiply the dimensions as you would a rectangle, but divide the product by 2.

Example:

The dimensions of triangle B are 4 and 9.

4x9=36

Now divide.

36/2=18

So the area of triangle B is 18.

---

hope it helps

A gift box measures 8 inches by 10 inches by 3 inches. what is the surface area of the box?

Answers

Answer:

If I am correct then the answer should be 268 in2

Step-by-step explanation:

I don’t get this can someone explain please

Answers

Answer:

2^4/4^2 will be 1, I will explain after answering,

2 x 3^1 = 6

(4 - 2) ^2 = 4

First. Evaluate the exponents in the fraction above

2 x 2 x 2 x 2 = 16

4 x 4 = 16

and 16 over 16 would equal 1 whole

3 to the power of 1 means just 3 so 2 x 3 = 6 (easy multiplication)

Evaluate in the parenthesis first: 4 - 2 = 2 then 2 to the power of 2 would be   2 x 2 = 4

for the system {3x-2y=4, 4x-3y=7,
which is the solution to the system?
A. (-2, -5)
B.(2, -5)
C.(-2,5)
D. (2,5)

Answers

Answer:

x=-2 y=-5

Step-by-step explanation:


Two angles are complementary. The measure of angle W is four times the
measure of angle N plus 10 degrees. What is the measure of angle N?

Answers

W=4N+10
N+4N+10=90
5N=80
N=80/5=16

Help me with this pls I’ll give brainliest

Answers

Answer:

Step-by-step explanation:

-1/2 is a rational number but not integer

6.66.. is an irrational number

-2 is an integer

-sqrt3 is an irrational number

150 is an integer

Two rabbits land on deserted Salt Island; they breed,and the number of rabbits on the island doubles every 4 weeks. Two other rabbits arrive on deserted Pepper Island; these rabbits triple every 4 weeks. At the end of the 12 weeks, one python arrives on each island. As each python grows, the number of rabbits it can eat each week doubles. The first week, each eats 1 rabbit, the second week, 2, and so forth. How long will it take the python to wipe out the rabbits on each island?

Answers

Answer:

It will take it 7 weeks

Step-by-step explantion

need help with this please

Answers

Answer:

-2/5

Step-by-step explanation:

Exactly the opposite of the sign, opposite of + is negative (-)

.
Sydney has a points card for a movie theater,
She receives 35 rewards points just for signing up.
She earns 5.5 points for each visit to the movie theater,
She needs at least 90 points for a free movie ticket.
Which inequality can be used to determine w, the minimum number of visits Sydney
needs to earn her first free movie ticket?

Answers

Answer:

35+5.5w>90

Step-by-step explanation:

35+5.5x>90

it would be this sign > but with a line under it..the amount of points she racks up can be greater or equal to 90

             

What is m∠X to the nearest degree?

Answers

Thinking bout 46



Step by step:
Use inverse cos law to get 44 degrees!! Hope this helps :)
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