B. Solve
1. A bus covers a distance of 90 km at a uniform speed. Had the speed been 15 km/hour more it
would have taken 30 minutes less for the journey. Find the original speed of the bus.​

Answers

Answer 1

Answer:

45 km/hr

Explanation:

total distance = 90

Increased speed = x+15

90/x - 90/x+15=1/2

90(1/x - 1/x+15)=1/2

90(x+15-x/x^2+15x)=1/2

equation is:

x^2+15x-2700=0

x^2+60x-45x-2700=0

x(x+60)-45(x+60)=0

(x+60)(x-45)=0

x= -60, x=45

reject the negative value = -60

usual speed=45 km/ hr


Related Questions

As a geographer, one of the most important elements of geography that you will use is called “places and regions.” What does it mean to study this element of geography? Explain your answer in at least two sentences.

Answers

Answer:

Answer: Explanation: Places are locations on Earth with distinct characteristics - both human and physical - that give them meaning and distinguish them from other locations. Places are created on a variety of scales, from local to global, and often influence how people identify themselves

Explanation:

Answer:

Studying “places and regions” is all about learning about what places are like. The word “place” means the characteristics of a location, so I would be studying what makes a certain spot unique or special. I would also be studying how people group areas together into regions. People do this because areas can share some common qualities and characteristics.

what are the arguments of and against death penalty​

Answers

Answer:

The most common and most cogent argument against capital punishment is that sooner or later, innocent people will get killed, because of mistakes or flaws in the justice system. Witnesses, (where they are part of the process), prosecutors and jurors can all make mistakes.

3. Do you think that observation is enough
for the understanding of others?

Answers

Answer:

I need more information

How does this image reflect George Washington's views on government? (5 points)

He believed in the importance of state sovereignty.
He had a foreign policy that favored Great Britain.
He did not believe presidents ought to have a third term.
He believed the federal government needed more power.

Answers

Answer:

He did not believe presidents ought to have a third term

Explanation:

The reason for George Washington to say the statement with keeping in mind of creating one nation with solidarity and state sovereignty.

George Washington in 1785 said, We are one Nation today, and thirteen tomorrow. Who will treat with us on such terms? when the United States was on the edge of splitting into 13 states. The 13 states were trying to create their own government without having trust in the federal government. Washington believed that the United States should need to be one country. As an unstable nation, other countries would not deal with them.Washington needed all to get together and work together.

Therefore we can conclude that Washington wanted to unite the 13 states together and work together to form a strong country.

Thus option A. is correct answer.

     

Learn more about "George Washington" here:

brainly.com/question/6906310

What contributions did the Arabis traders have in West Africa?

Answers

Answer:

Multiple Trajectories of Islam in Africa.

Explanation:

Islam had already spread into northern Africa by the mid-seventh century A.D., only a few decades after the prophet Muhammad moved with his followers from Mecca to Medina on the neighboring Arabian Peninsula (622 A.D./1 A.H.). The Arab conquest of Spain and the push of Arab armies as far as the Indus River culminated in an empire that stretched over three continents, a mere hundred years after the Prophet’s death. Between the eighth and ninth centuries, Arab traders and travelers, then African clerics, began to spread the religion along the eastern coast of Africa and to the western and central Sudan (literally, “Land of Black people”), stimulating the development of urban communities. Given its negotiated, practical approach to different cultural situations, it is perhaps more appropriate to consider Islam in Africa in terms of its multiple histories rather then as a unified movement.

The first converts were the Sudanese merchants, followed by a few rulers and courtiers (Ghana in the eleventh century and Mali in the thirteenth century). The masses of rural peasants, however, remained little touched. In the eleventh century, the Almoravid intervention, led by a group of Berber nomads who were strict observers of Islamic law, gave the conversion process a new momentum in the Ghana empire and beyond. The spread of Islam throughout the African continent was neither simultaneous nor uniform, but followed a gradual and adaptive path. However, the only written documents at our disposal for the period under consideration derive from Arab sources (see, for instance, accounts by geographers al-Bakri and Ibn Battuta

How did Americans make purchases before the war, and how did that change after the war?

Answers

Answer:

I can't remember the answer

Explanation:

Early universities were created to train
A. people in Government
B. leaders of settlements
C. ministers in the Christian religion

Answers

Answer:

C. ministers in the Christian religion

How did the Mississippian people use the mounds they built?

The mounds provided a home for village chiefs only.
The mounds were permanent homes for all villagers.
The mounds provided a way to plant and cultivate crops.
The mounds were used for burials and other religious rituals.

Answers

Answer: The mounds were used for rituals and other religious rituals.

Explanation:

Like the mound builders of the Ohio, these people built gigantic mounds as burial and ceremonial places.

The mounds were permanent homes for all villagers

The Mayflower Compact showed that the Pilgrims were

A. ready to begin a new way of life without strangers.
B. aware of needing to make their own government.
C. aware of how different they were from other colonies.
D. willing to follow the same laws as Virginia.

Answers

Answer:

D. I think if not then B.

Explanation:

Answer:

The answer to the question would be C.

3. The Declaration of Independence is to Thomas Jefferson As Common Sense is to O A. Thomas Paine B. Samuel Adams C. Mayflower Compact D. Declaration of Independence​

Answers

Answer:

your answer would be thomas paine

Explanation:

he wrote it

say aller me: aller

say gies me : gies

say allergies me : corronavirus

Answers

Answer:

hahahahahahahah i dont get it

Explanation:

Answer:

thup

Explanation:

Which process will decrease the level of CO2 in the atmosphere?
O A growing trees
O B. cutting trees
O C. burning trees
OD.
increasing the human population

Answers

A: Growing Trees is the correct answer

Please select the word from the list that best fits the definition The process of spreading culture traits from one society to another.
1. Ethnocentrism
2. Technology
3. Diffusion
4. Reformulation
5. Social Control
6. Cultural Lag
7. Internalization
Choose one

Answers

Answer:

Ethnocentrism

Explanation:

Answer:

DIFFUSION

Explanation:

Took the test

what is the formal role of the states amending the constitution ??

Answers

Answer:

They ratify amendments.

Explanation:

Answer:

the convection convection

10. Phytoplankton act as a carbon store when they
A. Breathe in CO2
B. Die and become a food source for other creatures
C. Die and move down into the deepest part of the ocean

Answers

Answer:I believe it is B or A Mostly A I think.

Explanation:

15.1 comparing baths and showers

Answers

Answer: I prefer showers

Explanation:

Baths are essentially laying in your own filth however, with showers the water that hits your body goes down the drain.

what should be done for the protection of diversity of nepalese societies and promotion of national unity

Answers

Answer:

End racism

Explanation:

During the American Revolution, a substantial number of colonists were Loyalists. A Loyalist was a person who?

Answers

Answer:

Loyalists were American colonists who stayed loyal to the British Crown.

Explanation:

Loyalists were American colonists who stayed loyal to the British Crown during the American Revolutionary War, often referred to as Tories, Royalists, or King's Men at the time. They were opposed by the Patriots, who supported the revolution, and called them "persons inimical to the liberties of America".

- I hope this helps have a great day!

Answer:

Colonists who stayed loyal to Britain

In 1775, the colonists in America revolted against King George III and the British government. For a social studies project, Charles wants to write a historical narrative about the events of the American Revolution. Which of these references would be a primary source that Charles could use? *

Answers

He probley use the multiple pamphlets written like the “Crisis” by Thomas Paine to see the perspectives of each side or the treaties they tried to make like the “Olive branch Treaty

how had American's previously viewed terrorisms, and how did their views change after 9/11?

Answers

Answer:Three years after 9/11, Americans are still thinking and talking about how to protect our nation in this new era. The national debate continues.

Countering terrorism has become, beyond any doubt, the top national security priority for the United States. This shift has occurred with the full support of the Congress, both major political parties, the media, and the American people.

Explanation: Its true

5 (DISTRICT) 2020-2021 Question: 1-3 Which statements support the author's point of view on transportation? Select two options It is not necessary to change driving habits O Cars are a convenient way to travel. T O People rarely use their cars. O Cars are more important than the problems of pollution. o Hybrid cars would reduce pollution. O Gasoline is used to generate electricity. cars to get us le has made slowly killing​

Answers

Answer: Hybrid cars would reduce pollution. And Cars are a convenient way to travel.

Explanation:

What did the First Great Awakening and the Enlightenment have in common? Group of answer choices
A. The influence of both faded quickly and remained dormant for decades.
B. They stressed the importance of individuals over institutions.
C. They had more of an impact in Britain than the colonies.
D. They focused on reason as the guiding principle in colonists' lives.

Answers

i think the answer is B.

Give an example of each type of weathering and why are they considered weathering

Answers

Answer:

here is some weathering

Explanation:

These are freeze-thaw, onion skin exfoliation, chemical and biological weathering

9. (H.3) The Proclamation of 1763
a. marked the end of French rule in North America
b. gave new settlers the right to build on the western front.
c. was meant to protect Native Americans in the western land.
d. allowed the British to raise the prices on goods traded with the Indians.

Answers

Answer:

The answer is C

Explanation:

After the British gained land west of the Appalachians they didnt want to encroach on native land.

Read the excerpt.

The parents out there already know what I’m talking about: the mothers and fathers taking on second jobs, the folks getting bills for their children’s education they cannot pay. And this is an education they thought they’d saved for. I say, enough! A college education should not be a privilege but a right.

The excerpt is best characterized as an

Answers

a.) opening statement

Answer:

the answer is A

Explanation:

Political Geography of Latin America and the Caribbean
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Click to review the online content. Then answer the question(s) below, using compleſe sentences. Scroll down to view
additional questions,
Online Content Site 1
Read the article titled "Castro Resigns." Why did the US impose trade sanctions against Cuba in 1962?
BIUS
22
Bar
T

Answers

Answer:

On February 7, 1962, President john f Kennedy  issues an executive order broadening the United States' restrictions on trade with Cuba. The ensuing embargo, which effectively restricts all trade between Cuba and the United States, has had profoundly negative effects on the island nation's economy and shaped the recent history of the Western Hemisphere.

The embargo was the result of a rapid decline in U.S.-Cuban relations. Though Fidel Castro revolutionaries had deposed a government backed by the U.S. in 1959, the new Cuban regime initially sought a friendly relationship with its most powerful neighbor. Castro undertook a goodwill tour of the States and spoke excitedly of greater regional cooperation, but the Americans remained skeptical, fearing that he was a communist. The following year, President Dwight d Eisenhower  American companies from selling oil to Cuba, prompting Castro to nationalize all three American oil refineries on the island. After the Bay of pigs invasion , a botched attempt at counter-revolution staged by the CIA in 1961, Castro abandoned all hope of a friendly relationship with the U.S., declaring Cuba to be Marxist. The diplomatic situation grew icier and icier, leading Kennedy to broaden the embargo.

The embargo has lapsed several times, notably under Presidents Jimmy carter and Barack Obama . As a result, it has become easier for Americans to legally enter Cuba, although travel is still restricted, and some American agribusinesses are allowed to sell to Cuba. Nonetheless, the embargo has had a devastating effect. Though the U.S. economy is actually estimated to lose substantially more per year—nearly $5 billion—due to the embargo, the much smaller economy of Cuba is estimated to lose roughly $685 million per year. Losses from potential American tourists, who flock to virtually every other island in the Caribbean, account for much of that.

The embargo has never achieved the main objective of most embargoes—isolating the target nation and forcing it to acquiesce to its opponent's demands—but did force Cuba to become highly dependent on the Soviet union. When the USSR dissolved in 1991 the Cuban economy was devastated. Cuba continues to trade with the rest of the world, but the embargo on the movement of people and goods between the island and the region's wealthiest, most powerful nation has dealt its economy a blow that has hampered the its development for nearly all of its history as an independent nation.

Explanation:

no but got it right  

Answer:

In February 1962, President Kennedy imposed a trade embargo on Cuba because of the Castro regime’s ties to the Soviet Union. Pursuant to the President’s directive, the Department of the Treasury’s Office of Foreign Assets Control (OFAC) issued the Cuban Import Regulations. On July 9, 1963, OFAC issued a more comprehensive set of prohibitions, the Cuban Assets Control Regulations, which effectively banned travel by prohibiting any transactions with Cuba.

Explanation:

I got hundred in the online content

please hurry I WILL MARK BRAINLEST FOR THE BEST ANSWER!! please ASAP

Why did the French want to take over the Natchez tribe’s land?

to gain easy access to the Mississippi River
to live among the Natchez and learn their customs and language
to establish a firm border between French and Spanish lands
to gain fertile land to plant tobacco and other crops

Answers

Answer:

to gain fertile land to plant tobacco and other crops

Explanation:

NAFTA was important to North American countries because it__________.

A- broke down trade barriers

B- established a military alliance

C-promoted alternative energy sources

D-provided free healthcare for all people

HELP IM TIMED

Answers

Answer:

A .broke down trade barriers

Explanation:

I did the test

Why is the best medical care important?​

Answers

Answer:

The main reason is Healthcare is the maintenance or improvement of health and the prevention of sickness diagnosis, and treatment of disease, illness, and injury. Because of the need for healthcare is so important, the America government had to come up with a way to make sure people have healthcare and be able to pay for it.

A) Why weren’t the Articles considered ""innovative""?
B) Why did the national government become bankrupt?
C) How many votes were given to each state?

Answers

Answer: B.

Explanation:

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