A library buys 50 books. Some cost K5 and
others cost K7.If the library spent K290 in
all, how many books costing K5 did it buy?​

Answers

Answer 1

Answer: 30 books

Explanation:

Assume the books that cost K5 is x and the books that cost K7 is y.

50 books were purchased so the first formula is:

x + y = 50

They added up to K290 so the second formula is:

5x + 7y = 290

x + y = 50

5x + 7y = 290

x + y = 50

y = 50 - x

Substitute that into the second formula as y:

5x + 7(50 - x) = 290

5x + 350 - 7x = 290

5x - 7x = 290 - 350

-2x = -60

x = -60/-2

x = 30 books costing K5

y = 50 - x

= 50 - 30

= 20 books costing K7


Related Questions

is government doing enough to ensure that human rights are protected


Answers

No, they just care about themselves

Complete the second sentence so that it means the same as the first.
1. Some guests like to listen to live music during their meal.
- Some guests enjoy ………………………………………..to live music during their meal.
2. The flat has two bedrooms.​​​
- There ........................................ in the flat.
3. A stone broke my car windscreen.
- My car windscreen ....................................... by a stone.
4. Amira advised us to submit the assignment on time.
- Amira said, “You ................................. the assignment on time”.
5. I want to work in the government.
- I would ......................... to work in the government.

Answers

1. to listen
2. are two bedrooms
3. was broke
4. should submit
5. like

hope this helps :) have a great day!

The second sentence completed to mean the same as the first are:

Some guests like to listen to live music during their meal.

Some guests enjoy to listen to live music during their meal.

The flat has two bedrooms.

There two bedrooms in the flat.

A stone broke my car windscreen.

My car windscreen was broken by a stone.

Amira advised us to submit the assignment on time.

Amira said, “You should submit the assignment on time”.

I want to work in the government.

I would love to work in the government.

What is a sentence?

A sentence is a grammatically complete series of words consisting of a subject and predicate, and typically beginning with a capital letter and ending with a full stop.

Learn more about sentences:

https://brainly.com/question/11352260

#SPJ2

To what does the poet compare a poem and what type figure of speech is used to make the comparison?
The poem is compared to all but

Answers

Answer:

To what does the poet compare a poem and what type figure of speech is used to make the comparison? Simile

The poem is compared to all but time.

The figures of speech that are used in poems by poets are known as "simile," so, the simile is the correct answer.

What is a simile?

Simile is a figure of speech in which two inherently distinct objects or concepts are explicitly compared using the words "like" or "as."

a figure of speech in which one object is compared to another of a different kind in order to make a description more vivid or strong (e.g. as brave as a lion ).

Check out the link below to learn more about simile;

https://brainly.com/question/17183389

#SPJ2

you recently visited etosha national park where wild animals live.write a discriptive eesay .what you have experienced and what you learnt?​

Answers

u want someone to write a whole essay

What is the definition of a dynamic character?

A. a character whose personality has confidence and brightness
B. a character who stays the same from the beginning to the end of the story
C. a character whose personality changes depending on what happens in the story
D. a character who changes the personality of other characters in the story

Answers

It is b- a character who stays the same from beginning to the end of the story

Answer:

CORRECT ANSWER: a character whose personality changes depending on what happens in the story

Explanation:

Can"what"be used as a conjunction? explain in Detail​

Please

Answers

Answer:

no

Explanation:

Coordinating Conjunctions

for, and, nor, but, or, yet, so

Correlative Conjunctions

both/and, either/or, neither/nor, not only/but, whether/or

Some Subordinating Conjunctions

after, although, as, as if, as long as, as much as, as soon as, as though, because, before, by the time, even if, even though, if, in order that, in case, in the event that, lest , now that, once, only, only if, provided that, since, so, supposing, that, than, though, till, unless, until, when, whenever, where, whereas, wherever, whether or not, while

Answer:

No.

Explanation:

Planning conjunctions permit you to join words, expressions, and provisions of equivalent linguistic position in a sentence. The most widely recognized organizing conjunctions are for, and, nor, be that as it may, or, yet, this; you can collect them by utilizing the mental side FANBOYS.

For

And

Nor

Be

Or

Yet

So

FANBOYS.

ENG1503 Assignments2 need help please ​

Answers

Answer:

i want to help if i can

Explanation:

where is the question

“As global citizens, we need to care about global isues”. Do you ogree? Why?

Answers

Answer:

Yes

Explanation:

Answer:

yes

Growing up in a sheltered community, I was never truly exposed to global issues as a child. Topics such as politics and international relations were not often touched at my dinner table, either.

But I began to navigate my public school career, I realized that I was not alone in my situation. There were so many kids who were just like me who were not exposed to global events. Maybe less than five percent of the entire class could name the United States ambassador to the United Nations, and even less would be aware of the extreme gender discrimination that attack girls in Guatemala.

Although I grew up in this “bubble” of indifference towards the global community, I am slowly becoming a more and more global student. For me, here are the top reasons why I (and youth everyone) should care about global issues:

Globalization is on the rise. In this day and age, one country can not survive without another, and this simple principle affects everyone on the globe. It is likely that one day, you will become friends with someone who speaks an entirely different language or grew up in an entirely different culture. These people may even be your future co-workers. If you want to be able to foster deeper connections and broaden your network, understanding global issues and other cultures is key.

Global issues are your issues, too. Let’s talk about the situation of adolescent girls in Guatemala again. Did you know that more than 2 million girls in Guatemala do not attend school due to social boundaries? If you believe in gender equality, you can understand why the fight of rights of women in other countries is part of your fight for gender equality, too. Dare to expand your horizons by learning about the issues you believe in fighting for- in an entirely different country.

While one country can not survive without another, one person can not survive without another either. Giving back or volunteering in your community can give you invaluable experiences. But if you extend your service to the entire world, there is no telling what amazing differences you will be able to make. Understanding global issues and further using your talents to help solve these issues will not only make you a more sensible and well-rounded person; it will help the world take one step closer towards a brighter future.

Explanation:

Which of the following is a synonym for calibrated?

Answers

Answer: See explanation

Explanation:

You didn't give the options but let me help out.

Calibrated simply means to adjust or mark something in order for it to be used in the exact way. Calibrated means to measure a particular thing in a way that's precise.

Calibrated can also mean to be carefully adjusted or set. The synonyms for calibrated include gauged, measured, scaled, compute, quantify etc.

Which story premise is most clearly a classic tragedy

Answers

Answer:

The correct answer is A

Explanation:

The main character loses a big prize through his own fault which is a characteristic of classic tragedy.

Answer:

The answer to your question is A

Explanation: Trust me bro

What is the main theme in the book Mapping the Bones by Jane Yolen

Answers

Answer:

One theme seems to be frustration with those who didn't fight back against overwhelming odds, which makes for a confusing judgment on the suffering child protagonists.

week late hope I helped anyway

Explanation:

is Wire and rubber are bendable, while gloss ?​

Answers

Answer:

white gloss ?

Wire and rubber are bendable, while glass is not

Everyone was entertained by my story and they were surprised when I told them I had…………
A. let it up
B. cut out
C. done it up
D. made it up

Answers

Answer:

I think the right answer is I had done it up which is C

Everyone was entertained by my story and they were surprised when I told them I had made it up. The correct option is D.

What is tense?

In grammar, tense refers to the time of an action or event described in a sentence. It indicates whether the action occurred in the past, present, or future. In English, there are three main tenses: past, present, and future.

The past tense is used to describe actions or events that have already happened. For example, "She walked to the store."

The present tense is used to describe actions or events that are currently happening or are generally true. For example, "He walks to work every day."

The future tense is used to describe actions or events that will happen in the future. For example, "They will go to the party tomorrow."

There are also other tenses in English, such as the present perfect, past perfect, and future perfect, which describe actions that have occurred at specific times or have been completed before another event in the past, present, or future.

Here in the question,

The past perfect tense is a verb tense used to describe an action that was completed before another action in the past. It is formed using the auxiliary verb "had" followed by the past participle of the main verb.

Therefore, The correct answer is D i.e made it up.

To learn more about punctuation click:

brainly.com/question/30789620

#SPJ3

coordinating conjunctions are used in compound sentences only?​

Answers

Answer:

A comma and a coordinating conjunction can be used to join two basic phrases to form a compound sentence. Some instances are as follows: I got a F because I drank some water since I was thirsty. It was cold outside, so she put on a sweatshirt.

Explanation:

brainlist??

13) What is the MOST LIKELY reason that it takes the family an hour to walk down the trail?A) They don’t want Randy to trip on another root. B) They don’t know which direction they are headed. C) It started raining as they walked down the trail. D) It started to get dark as they walked down the trail.

Answers

Answer:B

Explanation: This is the most likely reason the family took so long because the others don’t make sense or aren’t talked about.

Which paragraph is most likely taken from a biography

Answers

Answer:

There isn't any picture of the questions

have a good day :)

Explanation:

A biography, or simply bio, is a detailed description of a person's life. It involves more than just the basic facts like education, work, relationships, and death; it portrays a person's experience of these life events

Answer:

I was born at Brackish-Pond, in Bermuda, on a farm belonging to Mr. Charles Myners. My mother was a household slave; and my father, whose name was Prince, was a sawyer belonging to Mr. Trimmingham, a ship-builder at Crow-Lane.

Explanation:

Fun Fact: Some fungi create zombies, then control their minds

hope this helps

e. I am never with you
Change the following sentences into indirect speech
a. Bijesh said to me. " have waited for your for an hour"​

Answers

Answer:

e. he told that he was never with me .

a. Bijesh asked me that he had waited for me for an hour .

hope it is helpful to you

God made the universe.
God is perfectly good.
Whatever is made by a perfectly good being is perfectly good.
Whatever is perfectly good contains no evil.
The universe contains no evil.
Is this deductive or inductive and if it is inductive what is the probability?

Answers

Answer:

This is deductive reasoning

Explanation:

Answer:

god is good and good is god

Explanation:

If I was conducting a study focused on the sexual behaviors of college-going females between the ages of 18 to 24 years old, what type of research methodology should I adopt (quantitative or qualitative)?

Answers

It would be qualitative because you are not researching for numbers or quantity.
Hope this helps :)

Which is the closest antonym for the word aftermath?
a
inauguration
b
enrollment
c
milestone
d
proclamation

Answers

Answer:

inauguration

Explanation:

since aftermath is what's left

example:after a bomb goes off theres usually rubble in the aftermath

inauguration means when is being built or established

Select the correct answer.
Which is the best inference about Lincoln’s assessment of his presidency?

Answers

Answer:

"Lincoln did not believe he could have been a master of his own fate."

Is the correct answer!

______________________________________________________

Have a gooooodddd day :D

Which is the closest synonym for the word passivity?

a
indifference
b
contempt
c
emotion
d
belligerence

Answers

Answer is A - INDIFFERENCE

best garden hotel provides meeting and banquet ....... and services
a. facilities
b. qualities
c. categories
d. conventions

Answers

Answer:

facilities

Explanation:

facilities is the place or places that the meetings can take place

During the prewriting stage, an author will determine
A. purpose.
B. formatting.
C. specific examples.
D. paragraph organization.

Answers

An author will determine the purpose for writing the book

Answer:

purpose

Explanation:

just did exam

Read the sentence.

During these seemingly endless winter days, as we’re bombarded with frigid winds, I ________ for the arrival of balmy spring days.

Which verb or verb phrase is in the correct tense to complete the sentence?

yearn
yearned
did yearn
will yearn

Answers

Answer:

I believe your answer is A. Yearn.

Hope this helps! <3

I think it would be, The First one, Yearn
Because yearn is used in present tense as the word durning can be, while yearned and did yearn is past tense, and will yearn is something to be done in the future.
The sentence seems like it is set in the present so, Yearn would be my best bet :)

For each pair of sentences, put MI beside the sentence that states a main idea. Put D beside the sentence which contains a supporting detail.

A sheep is incapable of self-protection.

It may run from danger or stand ground.

Answers

Answer:

A sheep is incapable of self-protection.MI

It may run from danger or stand ground.D

A) fill in the blanks with Abstract Nouns formed
from the words given in the beacket
1) There is very little _______(differ) between
_________ (succeed) and
________ (fail) If you are _______ (confident) _______ (sincre) and the ________ able to work hard you will

Answers

Answer:

A. 1.  difference

       success

       failure

       confidence

       sincerity

I'd advise you to----------- a reservation before you go. The hotels near the beach are very popular and get fully booked during the summer.

Answers

Answer:

make.

Explanation:

A verb is one of the parts of speech in English language. Verbs can be defined as any word that describes an action, occurrence, or state of existence. Some examples of verb are dance, sing, walk, play, run, sit, make, etc.

In this scenario, the most appropriate word to fill in the blank space is the verb; make. Make simply means to effect a thing or event by performing an action. Thus, the speaker is advising you to make a reservation because the hotels close to the beach are very popular and get fully booked during the summer.

What did the author mean by the lines

Answers

Answer:

D. The runner's records had been broken and people have stopped talking about him.

Explanation:

The above option is correct.

In the stated lines, the author actually meant that the runner's records had actually been broken and people have stopped talking about him. We see this in the line that stated "Runners who renown outran" - this reveals that there are runners that outran the man. So, as a result of that, his record was surpassed and people stopped about him - this we see in the line: "And the name died before the man".

Question 1 of 10 How do the purposes of a cover letter and a résumé differ? O A. A cover letter provides the names and contact information for your references, while a résumé lists your starting salary requirements. B. A cover letter gives specific details about previous work experience, while a résumé lists qualifications that make you a viable candidate for a position. C. A cover letter highlights the skills and experience that make you qualified for a position, while a résumé gives a short summary of your job history. D. A cover letter lets potential employers know that you have accepted another position, while a résumé asks potential employers for a position.​

Answers

The purposes of a cover letter and a résumé differ as C. A cover letter highlights the skills and experience that make you qualified for a position, while a résumé gives a short summary of your job history.

What is a cover letter?

The facts—who, what, when, and how—are stated in a resume. In contrast, a cover letter gives you the chance to discuss your qualifications for the position.

To convince employers that you're a good fit for the job at hand, this paper offers some color and personality.

In conclusion, the correct option is C.

Learn more about cover letter on

https://brainly.com/question/3602860

#SPJ1

Other Questions
A certain atom has a mass of 16 and an atomic number of 7. What element is this ? we.How does the dialogue develop the characters in thisparagraph? Select two options. what are used of MS PowerPoint pls answer this for me now Solve 11ax + 12 ax = 13 ax + 60 for x. Assume a=0.. = 10aB. x = 10aC. x = 6aD. x =6/a The aldol reaction is catalyzed by acid as well as base. What is the reactive nucleophile in the acid-catalyzed aldol reaction Helpp!!??Think for a moment about driving down the street alone in your car when all of sudden you see a car flipped over in the middle ofthe street, the car is leaking some sort of fluid, you can't tell what it is yet but it doesn't look good and the driver is alone and notmoving. What would you do? Please help due today Signal words and phrases help a reader determine a texts Jessica left her running shoes at school yesterday. Today she walked 4 miles to school to get her shoes, she ran home along the same route, and the total time for both trips was 2 hours. Jessica walked and ran at constant speeds, and she ran 3 miles per hour faster than she walked.What was Jessica's walking speed in miles per hour? Using the money demand and money supply model, an open market purchase of Treasury securities by the Federal Reserve would cause the equilibrium interest rate to What is the value of x? A calculator which is marked at $120 is sold for cash at a 30% discount. How much change would Susan receive if she pays for the calculator with a $100 bill? Which statements are true about both Japan and China?Check all that apply.A. Japan does not place restrictions on religion and reproduction like Chinadoes.B. Japan is a constitutional monarchy, while China is a Communist state.c. Japan enacted strict trade policies that helped its manufacturers, but thatled to a huge real estate bubble.D. Japan and China share religious values. Please answer this will give brainliest The Iranian concept of sharm involves _____. A. a womans behavior in society B. the cultural concept of marriage C. a womans wit and intellect D. the family a person is born into(THE ANSWER IS NOT B) Inaugural Address John F. Conclusion What is the right answer? Scientists recently discovered that three different types of squid, a marine animal, previously thought to be three different species, were actually all members of one species. Their earlier ideas were based on using squid carcasses (dead bodies). The new, more accepted classification is most probably based on an analysis ofA. a greater number of squid carcassesB. the feeding habits of the three different speciesC. a number of newly found squid fossilsD. the DNA present in the cells of squid 2^24 x 3^2 x 1 hhhhhhhhhhhhhhhhhh