PLZ NEED HELP NOW TAKING TEST 40 POINTS
Two trains are traveling between city A and city B a distance of 4000 kilometers (km). The regular train travels at a speed of 80 kilometers per hour (km/h). The express train leaves at the same time on a parallel track and travels at 100 km/h. The formula for speed (S) is S=D/T where S is speed, D is distance and T is time. How much earlier will the express train arrive at city B?


10 HOURS

40 HOURS

50 HOURS

90 HOURS

Answers

Answer 1

Answer:

40 hours

Step-by-step explanation:

first i want to know the answer i think it is 40 hours or 10 hours or 50 or maybe 90 hours


Related Questions

Two athletes Or training over a two week period to increase the number of push-ups each can do consecutively . Athlete a can do 16 push-ups to start and increase his total by each to each day. Athlete b can do 12 push-ups to start an increase he's so tall by three each day. Compare the initial values for each what does the initial value mean in the situation

Answers

Answer:

Initial values of Athlete a and b is 16 and 12 respectively. That means, Athlete a start with more push-ups as compared to athlete b

Step-by-step explanation:

Athlete a perform 16 push-ups  to start and increase 1 push-up each day for 14 days

⇒ number of push-ups at the end of x days is for Athlete A is

n = number of push-ups for athlete A= 16 + x

Athlete b perform 12 push-ups  to start and increase 3 push-up each day for 14 days

⇒ number of push-ups at the end of x days is for Athlete B is

m = number of push-ups for athlete B = 12 + 3x

where x is the number of days

thus, total number of athletes at the end of 14 day is

n = 16+14 = 30 push-ups for athlete A and m = 12 + 42 = 54 push-ups for athlete B at the end of 14th day

Now similarly for the initial day x = 0

thus, total number of athletes at the starting of 1st day is

n = 16+0 = 16 push-ups for athlete A and m = 12+0 =12 push-ups for athlete B at the starting of 1st day.

That means, Athlete a start with more push-ups as compared to athlete b, But at the end of 14th day Athlete b do more push-ups then athlete a

Answer: The initial value for Athlete A is greater.

Pay attention for the keyword initial value.

I got no explanation D:

Sam builds 360 toys in 8 hour. At that rate,how many toys would he build in 4 minutes

Answers

Answer:

He can build 3 toys in 4 minutes.

Step-by-step explanation:

Divide 360 by 8 since you are dividing it first to get the number of toys he can build in an hour.  As a result, he can build 45 toys in an hour.  Divide that number by 15 since 4 times that number equals an hour.  You should get 3 toys as your final result.  

For easier explanation, multiply 8 and 15 together to get 120 for better understanding.  Divide that number from 360 to get the same answer.

I need help with this math problem

what is 15% of $58?​

Answers

Answer:

15% of 58

15÷100×58

may this help u

Answer: $ 8.70

Step-by-step explanation: 0.15 x 58 = 8.7

Ill give brainliest

Describe a situation where you might need to know the percent that something changed.

Answers

Answer:

Change: subtract old value from new value. Example: You had 5 books, but now have 7. The change is: 7−5 = 2. Percentage Change is all about comparing old to new values.

Step-by-step explanation:

hope this helps :)

Answer:

When finding the climate of an area

Step-by-step explanation:

Ex. Rainfall increased 30% since 2019 in florida (not true just an example)

?
Solve for X
9x + 8 = -1

Answers

Answer:

x = -1

Step-by-step explanation:

9x + 8 = -1

Subtract 8 from each side

9x + 8-8 = -1-8

9x = -9

Divide each side by 9

9x/9 = -9/9

x = -1

1/5 - 1/6

Plz ans. Fasttt

Answers

Answer: 1/30

5 and 6 both have a common factor of 30

30 will be our ned denominator

1/5 needs to be multipliued by 6

(since 5 times 6 is 30)

and

1/6 needs top be multiplied by 5

(since 6 times 5 is 30)

then you get 6/30 - 5/30 and that is just 1/30

What is the measure of /GMH
A 40°
B 45°
C 50°
D 90°

Answers

Answer: A

Step-by-step explanation: /GMK is a right angle and /HMK is 50 degrees so 90-50=40

A is the answer because 90-50

ill give you brainliest if you answer fast and correctly

Answers

Answer:

the answer is 64.29% or just 64

the fraction form is 2/3

Step-by-step explanation:

Answer:

2/3 (Two-Thirds)

The percentage is also 66.6666667%, if they are asking for that.

Step-by-step explanation:

First, you add up all the numbers and get 84.

Then, you add up Friday and Saturday, to get 56.

You now have 56/84.

Simplify and get 2/3.

You are LOVED <3

For the function of f ( x ) = − 2 x^ 2 + x + 1, find f (3).

Answers

Step-by-step explanation:

f(3)= -2×3²+3+1

= -18+3+1

= -14

hope it helps.

Answer: = ± 2 √ 2

Step-by-step explanation:

A piece of stpne on Planet Y weighs seven pounds, but on Earth it weighs only 4 pounds.
What would a 130-pound Earthling weigh on Planet Y?

Answers

The answer is 227.5

Because 7 is 175% of 4
So 175% of 130 is 227.5

Answer:

227.50

Step-by-step explanation:

TRUE OR FALSE
becomes zero for x​

Answers

Answer:

True

Step-by-step explanation:

The following is a recipe for Gazpacho, a cold vegetable soup. Write how much of each item in the
recipe you would need to serve 10 people, assuming each would eat one serving.
Gazpacho
Yield: 4 servings
1 ½ lbs of fresh tomatoes
1 c peeled, chopped cucumber
½ c chopped red bell pepper
½ c chopped red onion
1 small jalapeno
1 garlic clove
¼ c olive oil
1 lime, juiced
2 tsp balsamic vinegar
2 tsp Worcestershire sauce
½ tsp cumin
1 tsp salt
¼ tsp black pepper
2 Tsp basil

Answers

9514 1404 393

Answer:

  replace recipe quantities:

  1/4 ⇒ 5/8; 1/2 ⇒ 1 1/4; 1 ⇒ 2 1/2; 1 1/2 ⇒ 3 3/4; 2 ⇒ 5

Step-by-step explanation:

The given recipe serves 4, so must be multiplied by 10/4 = 5/2 to make it make 10 servings.

The numbers in the recipe (ignoring units or ingredients) are ...

  1/4, 1/2, 1, 1 1/2, 2

Each of these numbers needs to be multiplied by 5/2 to get the number for the larger recipe.

  1/4 × 5/2 = 5/8

  1/2 × 5/2 = 5/4 = 1 1/4

  1 × 5/2 = 5/2 = 2 1/2

  (1 1/2) × 5/2 = 3/2 × 5/2 = 15/4 = 3 3/4

  2 × 5/2 = 5

Then, to make the larger recipe, rewrite it with the quantities replaced as follows:

  old value ⇒ new value

  1/4 ⇒ 5/8

  1/2 ⇒ 1 1/4

  1 ⇒ 2 1/2

  1 1/2 ⇒ 3 3/4

  2 ⇒ 5

__

For example, 1 1/2 lbs of fresh tomatoes ⇒ 3 3/4 lbs of fresh tomatoes

_____

Additional comment

If you actually want to create the recipe, you may find it convenient to use a spreadsheet to list quantities, units, and ingredient names. Then you can add a column for the quantities for a different number of servings, and let the spreadsheet figure the new amounts. (A spreadsheet will compute quantities in decimal, so you will need to be familiar with the conversions to fractions--or use metric quantities.)


2 sides of a triangle have measures of 5 inches and 11 inches which measure could be the length of the third side

Answers

Answer:

the third side must be greater than 6 but less than 16

Step-by-step explanation:

use triangle inequality theorem - 3 scenarios (one of which is discounted because it produces a negative and a side of a triangle cannot be negative)

5 + 11 > 3rd side (n)    n < 16

5 + n > 11       n > 6

11 + n > 5;   n > -6   discounted

Pls help I need this soon

Answers

OPTION C (I'm not super sure though)

Isabel finished her history assignment in 1/5 hours. Then she completed her math assignment in 1/2 hours. What was the total amount of time Isabel spent doing these two assignments?

Write your answer as a fraction in simplest form.

Answers

Answer:70/100 or 7/10

Step-by-step explanation:

one hour is 60 mins

1/5 of an hour is 12 mins

1/2 of an hour is 30

30 + 12 = 42

42/60 simplified is 7/10

Help please I’m almost done

Answers

Answer:

33 and -39

Step-by-step explanation:

Angle on a straight line = 180

|5x + 15| = 180 and |5x + 15| = -180

5x + 15 = 180

Subtract 15 from both sides;

5x = 165

Divide both sides by 5;

x = 33

5x + 15 = -180

Subtract 15 from both sides;

5x = -195

Divide both sides by 5;

x = -39

I am giving all my final points for this one please answer correctly! and thank you

Answers

Answer:

D.

Step-by-step explanation:

You can see that the first value(initial) of y is 20 and the difference of the preceding values is 10 but it is decreasing thus -10

Can someone plz help me with the red #6 the graph is on the screen plz anyone fast ☹️

Answers

The answers is Y=-1x+5
The 1 is negative because it’s going down

Geometry TEST #5 Can you use the SAS Postulate, the AAS Theorem, or both to prove the triangles congruent? x a. SAS only b. AAS only c. Either SAS or AAS d. neither​

Answers

Answer

ANGLE SIDE SIDE

Step-by-step explanation: Because you have an angle side side hope this helps


゚+*:ꔫ:*
A. (2, 1)
B. (1, -2)
C. (1, 2)
D. (-1, 2)


♡━━━━━━━━━♡
︎thank you! ♡´・ᴗ・`♡

Answers

Answer:2,1

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Billy has 5 1/4 yards of wire if he uses for is 4 7/8 yards to make a fence how much would he have left​

Answers

Answer: 3/8
Reasoning: 5.25 – 4.875 = 0.375, transferred back into a fraction would be 3/8

Which expression is equivalent to the equation?

Answers

Answer:

Option 1

Step-by-step explanation:

The given equation equals 3072, so find the other equation that equals 3072.

Option 1 = 3072 - correct

Option 2 = 432 - wrong

Option 3 = 2883 - wrong

Option 4 = 432 - wrong

I hope this helps!

Which expressions are in their simplest form? Check all that apply.

Answers

Answer:

The first one is the only one in simplest form.

Answer: this is answerrrr

A C D

peace

help please i hate math

Answers

4n+2=6(1/3n-2/3)
n= -3

Before getting to school, Jason has a few errands to run. Jason has to walk 10 blocks to the theater, and 12 blocks to the gallery, before walking the final 6 blocks to arrive at school. If Jason has already walked 7 blocks, how many more blocks must he walk before arriving at school?

Answers

Answer:

11

Step-by-step explanation:

120 kg in the ratio 3:2

Answers

Answer:

72:48

Step-by-step explanation:

180....................

Priya is buying raisins and almonds to make trial mix. Almonds cost $5.20 per pound and raisins cost $2.75 per pound. Priya spent $11.70 buying almonds and raisins. The relationship between pounds of almonds,a,pounds of rasins,r,and the total coast is represented by the equation 5.20a+2.75r=11.70 How many pounds of rasins did Priya buy if she bought 1.5 pounds of rasins

Answers

Answer:

It would be roughly 5 lbs.

Step-by-step explanation:

Add then divide the amount of rasins to the cost of almonds oiefp

Help I will mark brainliestttt

Answers

Answer:

11 or more

Step-by-step explanation:

55-40=15

160/15=10.666

11 or more

Explain and Show the equation of line parallel to y=-1x+2 going through the point (6, 3)

Answers

Answer:

y=-1x+9

Step-by-step explanation:

plug point in to y-y1=m(x-x1)

y-3=-1(x-6)

y-3=-1x+6

y=-1x+9

What is the range of the following relation?
{(10, 14), (-5, 16), (12, 14), (-5, 18)}
A-5
B 16
C14
D 18

Answers

Answer:

A

Step-by-step explanation:

Other Questions
Drag each tile to the correct box.Match each sentence from the passage with the statement that explains how it develops the author's thesis.(A) introduces the author's thesis(B) provides evidence in support of the author's thesis(C) restates the author's thesis(1) "Other studies show that playing an instrument improves critical-thinking and socializing skills."(2) "However, these programs provide valuable resourcesfor students."(3) "Therefore, because music programs improve student grades,enhance critical-thinking skills, increase collegegraduation rates, and remain relatively inexpensive, we should not cut music from our schools." What is chemical structure about? The prefix "semi-" means "partly". Based on your knowledge of the properties of elements, which kind of element is most likely used to make semiconductors?liquidsmetalloidsmetalsnonmetals If the future value of an ordinary, 7-year annuity is $10.000 and interest rates are 4 percent, what is the future value of the same annuity due? Here is a pedigree for colorblind (H)What is fred's genotype? The Twelve Tables were _____.a series of formulasa dining hall for diplomatsa code of law To catch a ball, a professional baseball player leaps into the air with an initial velocity of14 feet per second. Write a model for the height of the player above the ground after t seconds. After how many seconds does the player land on the ground? What would be the domain of this function? write a expression that represents the height of a tree that begins at 8 feet and increases by 2 feet per year. Let t represent the number of years. How tall will the tree be in 5 years? How do I put this into a sentence the steam floods during rainstorms . The stream is muddy . The steam floods easily. comme passe-temps ?19. Qu'est-ce que tu aimesa) faisb) fairec) fait The graph shows the cost C in dollars of w pounds of blueberries, a proportional relationship.Select all the true statements. (HINT...THERE IS MORE THAN ONE ANSWER)Group of answer choices1 pound of blueberries costs $2.75.2.75 pounds of blueberries cost $1.5 pounds of blueberries cost $15.50.12 pounds of blueberries cost $33.The point (3, 9) is on the graph of the proportional relationship. Iron-containing minerals in rocks may combine with water and air to create rust. This is an example of A. chemical weatheringB. mechanical weatheringC. abrasionD. exfoliation True or False: A neuron's response is all-or-nothing. help me plz its about algebra 1 if cube has total surface area 150cm sweet, find the volume of the cube Which of the following is the conjugate base of HSO3-?A. H2SO3B. SO2C. S032D. HSO3+ Which of the following statements would come from the theory of Communism?A. Unequal Distribution of WealthB. High Taxes to Support Government SpendingC. Government owned property and equal distribution of Goods The hostile expectation bias is a cognitive effect of consuming violent media, and it may cause one to believe thatA. aggressive behavior is unusual and rareB. acting aggressively is always beneficialC. others will act aggressively during conflictsD. people have a negative opinion of othersPlease select the best answer from the choices provided ODNextSubmitMark this and returnSign outINT I WILL DO ALL YA WORK AND I MEAN IT I DID IT BEFORECAN YA PLEASE ANSWER DIS ?FOR MANY POINTS IF YA DO I WILL ANSWER ALL YA QUESTION FOR THOSE WHO ANSWER DIS ? Which of the following best describes what happened to the Cherokee after relocation? Many died from disease, starvation, and inter-tribal violence. Their land holdings slowly eroded until the Cherokee were gone. The land for relocation was an empty promise and never existed. The Trail of Tears was hard, but once settled the Cherokee thrived. Which muscle fibers are best suited for sprinting?Red fibersWhite fibersMotor-neuron cellsYellow fibers