Two trains on opposite tracks leave the same station at the same time. one train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr. how long after they leave the station will they be 50 km apart?

Answers

Answer 1
I think the answer is 4 more hours or 5 more

Related Questions

Evaluate 150 - ( 2 +x)^ 3 when x - 2

Answers

Answer:

86

Step-by-step explanation:

(2+2=4) 4 to the 3rd power is 64. 150 minus 64 is 86

A bakery sold 210 vanilla cupcakes in a day, which was 42% of the total number of cupcakes sold that day. How many total cupcakes did the bakery sell that day?
PLEASE DONT SAY RANDOM ANSWERS ILL GIVE 15 POINTS

Answers

Answer:

88.2 is your answer.

Answer:500

Step-by-step explanation:on delta math

5.2 divided by what equals 0.052

Answers

the answer is .01 bc 5.2*.01= 0.052

find the area of the shaded region. geometry please help if your good at it. will mark brainlist

Answers

Area of shaded region = area of circle - area of segment

(where "segment" refers to the unshaded region)

Area of circle = π (11.1 m)² ≈ 387.08 m²

The area of the segment is equal to the area of the sector that contains it, less the area of an isosceles triangle:

Area of segment = area of sector - area of triangle

130° is 13/36 of a full revolution of 360°.  This is to say, the area of the sector with the central angle of 130° has a total area equal to 13/36 of the total area of the circle, so

Area of sector = 13/36 π (11.1 m)² ≈ 139.78 m²

Use the law of cosines to find the length of the chord (the unknown side of the triangle, call it x) :

x ² = (11.1 m)² + (11.1 m)² - 2 (11.1 m)² cos(130°)

x ² ≈ 404.82 m²

x = 20.12 m

Call this length the base of the triangle. Use a trigonometric relation to determine the corresponding altitude/height, call it y. With a vertex angle of 130°, the two congruent base angles of the triangle each measure (180° - 130°)/2 = 25°, so

sin(25°) = y / (11.1 m)

y = (11.1 m) sin(25°)

y ≈ 4.69 m

Then

Area of triangle = xy/2 ≈ 1/2 (20.12 m) (4.69 m) ≈ 47.19 m²

so that

Area of segment ≈ 139.78 m² - 47.19 m² ≈ 92.59 m²

Finally,

Area of shaded region ≈ 387.08 m² - 92.59 m² ≈ 294.49 m²

Write an algebraic expression for the word expression 9 less than the sum of x and 5

Answers

Answer:

X + 5 - 9

Step-by-step explanation:

Is your expression.

-4n>24 write a answer as an inequality

Answers

Answer:

n < -6

Step-by-step explanation:

-4n>24

Divide each side by -4, remembering to flip the inequality

-4n/-4 < 24/-4

n < -6

Answer:

n < -6

Step-by-step explanation:

We are given the following equation and asked to solve for n:

-4n > 24

Divide both sides by -4 to isolate n by itself, and since we are dividing/multiplying a negative number on both sides, we need to flip the inequality sign:

(-4n)/-4 < 24/-4n < -6

PLEASE BE REALLY QUICK ILL GIVE BRAINLYIST JUST HURRY I HAVE 5 MINUTES!!!

Match each equation to the property it illustrates.
associative property
8 X 4 = 48
identity property of multiplication
9 + 0 = 9
distributive property
(16)(1) = 16
identity property of addition
(2 + 6) + 3 = 2 + (6 + 3)
commutative property
2(3 + 7) = (2)(3) + (2)(7)
Checking Understanding
Quick
Check

Answers

Answer:

associative = (2 + 6) + 3 = 2 + (6 + 3)

commutative = 8x4=4x8

distributive is the one with 2(3+7)

identity of addition 9+0

identity of multiplication (16)(1)

A car is driven 600 miles and uses 20 gallons of gas. If gas is $1.05 per gallon, what is the gasoline cost per mile?

Answers

Answer:

hi

Step-by-step explanation:

find the value of find the value of a -7 when a equals 19 ​

Answers

Answer:

12

Step-by-step explanation:

You have to substitute a by 17 and then just subtract.

Olivia has 1/2 pound of raisins. She plans to eat them for snacks over the next 6 days. If she eats the same amount each day, What fraction of a pound of raisins will she eat each day

Answers

Answer :

1/12

Step by step :

Pounds of raisins : 1/2 = 0.5

Number of days : 6

Pounds of raisins she will eat every day :

0.5 ÷ 6 = 0.83333... = 1/12

CAN SOMEONE PLEASE DO THE MOST THEY CAN THIS IS URGENT

Answers

Answer:

1) 30

2) 1

3) 72

4) 0

5) 6

6) 2

7) 80

11) 16

12) 75

13) 31

14) 36

15) 0

16) 26

17) 52

Step-by-step explanation:

Answers:

____________________________

1.) [tex]\bold{x=30}[/tex]2.) [tex]\bold{x=1}[/tex]3.) [tex]\bold{x=72}[/tex]4.) [tex]\bold{x=0}[/tex]5.) [tex]\bold{x=6}[/tex]6.) [tex]\bold{x=2}[/tex]7.) [tex]\bold{x=80}[/tex]11.) [tex]\bold{x=16}[/tex]12.) [tex]\bold{x=75}[/tex]13.) [tex]\bold{x=31}[/tex]14.) [tex]\bold{x=36}[/tex]15.) [tex]\bold{x=0}[/tex]16.) [tex]\bold{x=26}[/tex]17.) [tex]\bold{x=52}[/tex]

____________________________

A circular flower bed in a botanical garden has a radius of 7 feet.

What is the area of the flower bed?

Use 3.14 for π.

Question 8 options:

153.86 feet


43.96 feet


21.98 feet

Answers

I think it would be 153.86 feet

help 10 points to solve please

Answers

Answer:

A, B, & C are true.

Hope this helps & have a great rest of your day!

Answer:I believe the answer is A,B,C

Step-by-step explanation:

3x^2+xy factorise it ​

Answers

Answer:

The factorized expression is [tex]x(3x + y)[/tex]

Step-by-step explanation:

We are given the following expression:

[tex]3x^2 + xy[/tex]

Factorizing:

We place the common factor in evidence.

The common factor of both elements of the sum is x. So

[tex]3x^2 + xy = x(\frac{3x^2}{x} + \frac{xy}{y}) = x(3x + y)[/tex]

The factorized expression is [tex]x(3x + y)[/tex]

Please help me find this

Answers

Answer:

i think 178 or 156

Step-by-step explanation:

10x6= 60

6x8=48

6x8=48

6x5=35

add all answers= 191

please help !! find the missing sides

Answers

I had this question once in a test as well but instead 30° was there instead of 60° but I’m guessing the answer will be the same too. I’m pretty sure the answer is the last one “x=14 y=7”

Factorise
7lm - 21lmn​

Answers

Answer:

7lm - 21lmn

taking common 7lm

7lm(1-3n)

PLEASE HELP! What is the largest number represented on the stem and leaf plot ?

Answers

Answer:

44

Step-by-step explanation:

remember stem equal tens place and leafs equal the ones place

so we can conclude that the largest number would be 44

Answer:

44

Step-by-step explanation:

To read a stem leaf plot, the stem portion will represent the tens place and the leaf portion represents the ones place. Therefore, the largest number represented by this plot would be 44.

Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?
a.
$4,080
b.
$3,180
c.
$3,060
d.
$2,820

Answers

The answer is B, because 0.06*45000 + 0.08(51000-45000) = 3,180

Answer:

Sally earns graduated commission on her sales each month. She earns 6% commission on the first $45,000 in sales and 8% on anything over that. If Sally had $51,000 in sales this month, how much commission did she earn?

a. )  $4,080 b. )  $3,180 <<<CORRECT c. )  $3,060 d. )  $2,820

Step-by-step explanation:

Edge 2021

Sandra earns $3 for each bead necklace that she makes. She spends all the money she earns from selling 8 necklaces on 4 books. Each book costs the same amount.

Answers

Answer:6

Step-by-step explanation: if she earns 3 per 1 necklace, 8 times 3 is 24 and if she spends ALL the money then right now she has 24 and 4 books to spend it on. 24/4 is 6

7) Taylor has a bag of marbles that are all the same size. Of all the marbles
in the bag, there are 5 red, 6 pink, 7 blue, 3 green, and 4 yellow marbles.
Using a probability model for this experiment, predict how many times
Taylor would pick up a red marble if she choses a marble 300 times. *
I

Answers

Answer:

60 times

Step-by-step explanation:

There are a total of 5+6+7+3+4=25 marbles

Out of those 25 marbles, 5 are red.

Since there would be a 5/25=1/5 chance of selecting a red marble one time, then we can set up a proportion to find out how many red marbles Taylor will select out of 300 marbles.

1/5=x/300

(1)(300)=(5)(x)

300=5x

60=x

x=60

Therefore, using a probability model for this experiment, Taylor would pick up a red marble 60 times if she chooses a marble 300 times.

07:5
Which pair of angles must be supplementary?
VX
2.
6
3
4
5
21 and 26
22 and 25
0 25 and 24
Z6 and 22

Answers

Answer:

∠1 and ∠6

Step-by-step explanation:

Supplementary angles are two or more angles added together make 90°.

Right angles indicated by the small square at the corners.

∠2 and ∠5 are right angles.

So, any pair with ∠2 and ∠5 are not supplementary.

The only pair of angles that are not associated with ∠2 and ∠5 is: ∠1 and ∠6.

How do you simplify 1 1/3

Answers

Answer:

4/3

Step-by-step explanation:

In a sale the price of a bike is reduced by 40% the sale price of the bike is £192 how much did the bike cost before the sale?

Answers

The original price was £320 before the 40% sale price

PLZ HELP!! WILL MAKE BRAINLIEST!!!​

Answers

Answer:

formula is 6a²= surface area

but since one side is not being painted it is

5a²= surface area

5(3.2)²

=51.2cm

(-4)-(-2)-{(-5)-[(-7)+(-3)-(-8)]}

Answers

Answer:

1

Explanation:

I used the calculator.

Need help with one more thing. Find the value of y.

Answers

Answer:

12 or 13

Step-by-step explanation:

one of the two from my knowledge

Answer:

y = 11.82

Step-by-step explanation:

use cos:

⇒ cos = [tex]\frac{adjacent}{hypotenuse}[/tex]

⇒ cos 10 = [tex]\frac{12}{y}[/tex]

cos of 10 is 0.9848

⇒ 0.9848 =  [tex]\frac{12}{y}[/tex]

multiply 12 on both sides

⇒ 0.9848 x 12 =  [tex]\frac{12}{y}[/tex] x 12

⇒ 11.82 = y

Thinking about the table...Why does this
table start at zero? Why aren't there any
negative numbers in the DOMAIN?

Answers

Answer:

Why does this table start at zero?

The vertical axis on trending charts should almost always start at zero. The reason it's almost always is because you may have trending data that contains negative values or fractions. In those situations, it's generally best to keep Excel's default scaling.

Why aren't there any negative numbers in the DOMAIN?

There are no domain restrictions, even though there is a variable under the radical. Since , can never be negative. The least it can be is , so there is no danger of taking the square root of a negative number.

Step-by-step explanation:

Hope it is helpful....

You are buying a new internet service. The service costs $75 per month. In the equation below, d is the
total number of dollars that you pay for your service, and t is the time (in months) that you keep the
service.
The relationship between these two variables can be expressed by the following equation:
d = 757
Identify the dependent and independent variables.
Help!!!

Answers

Answer:

The total number of dollars you pay:  Dependent

The time in months you keep your service:  Independent

1 inch x 3/4 inch x 1/2 inch

Answers

Answer:

3/8

Step-by-step explanation:

Other Questions
Please do 37,39,41 kskdkjdnd sorry please and ty!!!! 5) Last week, you sold 375 tacos, but.this week you only sold 250 tacos. Whatis the percent of change? A strand of DNA reads: ATGGCGCTTGACA. What is the sequence of the complimentary (opposite) strand? Which of the following is a true statement about bacteria, based on what Tim and Moby explained??A: Bacteria exist in only a few environments on Earth.B: Bacteria can grow to extremely large sizes.C: Mast bacteria are harmful to humansD: Bacteria can be both harmful and helpful to humans.Extra points for help I WILL GIVE BRAINLIEST!!!! PLEASE ANSWER AND NOT TROLL help will mark b if right Factor 35y+40z please help. Which are examples of maintaining homeostasis? Select all that apply.probiotic bacterial growth on the surface of the skinsweat production on a hot summer dayburns on the surface of the skindilation of the skin's blood vesselsinfections on the surface of the skinconstriction of the skin's blood vessels Question 1 of 14 Which of the following statements describes a perfectly inelastic collision? O A. An ice hockey player picks up a trophy as he slides past it. O B. A baseball bat hits a baseball into the outfield. O C. A surfer falls off of his surfboard when a wave hits him. D. Two birds collide in midair and fly off in different directions. the profits from eds plumbing company increased by 14,460, or 30% this year. what profit did the company esrn last year? Write a letter of appreciation to the People of China. Describe what you learned about Ancient China, including the dynasties, philosophers, inventions and many other great facts you may have discovered. The letter should be at four to five paragraphs long, neatly printed or typed 10 OR 11 FONT. PLS HELP ASAPPhilosphers are Buddha, Lao Zi, Shang Yang, ConfuciusDynasties are Shang Dynasty, Zhou Dynasty, Qin Dynasty, Han Dynasty What is the important role of research in the field of science to reduce the negative impact of pandemic on Filipinos? List two things you could do now to further explore the career clusters you are interested in. please help will give brainliest How do the Game makers lure Katniss out of the cave? Find the measure of the given angles 1 (2/9) divide 1 (5/6) John wants to invite around 78,000 college students to a tournament. Which of the following sets of college student populations has a sum closest to 78,000? A. 18,432; 32,761; 27,390 B. 15,791; 47,318; 27,522 C. 22,109; 38,569; 32,780 D. 27,420; 47,338; 22,183 Want to choose 2 letters ,without replacement, from 5 letters what makes sherbet fizzy HELP ME ASAP!!!! DUE AT 11:59 AM!!!!!1 I NEED A 5 PARAGRAPH ESSAY ABOUT HOW CAN WE PREVENT OR REDUCE GUN VIOLENCE IN SCHOOLS? PLEASE HELP!!!!!I NEED A 5 PARAGRAPH ESSAY ABOUT HOW CAN WE PREVENT OR REDUCE GUN VIOLENCE IN SCHOOLS?