# nathalie

Most popular questions and responses by nathalie
1. ## Math word problem

The admission fee at an amusement park is $1.50 for children and$ 4.00 for adults. On a certain day, 258 people entered the park, and the admission fees collected totaled \$712 . How many children and how many adults were admitted? I tried doing it this

2. ## chemistry

calculate the pH of the solution when 25.0ml of 0.0920M HCL is titrated with 0.15ml, 23.0ml, 30.0ml of 0.10M NaOH

3. ## History

Who were the English Monarchs during the War of the Roses? And the Hundred Years War? During the wars of the roses, was it just Edward IV, Edward V, and Richard III? My teacher said there were four or five of them. And for the hundred years war was it just

4. ## Chemistry

Could someone please check my Chemistry homework? The molecular formula for cisplatin, a chemotherapy agent, is PtCl2(NH3)2 (The numbers are all supposed to be subscripts) 1. What is the molar mass of cisplatin? Ans: 300.06 g/mol 2. How many moles of

5. ## Chemistry

How many kilograms of aluminum can be extracted from 2.0 metric tons of the ore 'alumina' (Al2O3)?

6. ## History

I asked a question about the monarchs of England earlier, and I did my timeline. Except there are supposed to be 23, and I only have 22. I am not supposed to add the monarchs of the Hundred years War or the Wars of the Roses. Can someone please check to

7. ## fau

The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10^8 ~\rm

8. ## statistics

suppose 25% of the urban population is 18 years old or younger. five residents of that city are selected at random find the probability that at least two of the selected five persons are 18 years old or younger. please help me with this question !!!

9. ## French

I have to write a paragraph about driving and my car with a story about a driving experience. Unfortunately I forgot my book and I'm trying to come up with something on my own. My French isn't that good either. Could someone please help me with the words I

10. ## math

A concert promoter wants to give away 240 tickets to 3 radio stations. Which basic math fact can he use to find 240 image 3 using mental math?

11. ## algebra 2

find all the zeroes of: x^5-3x^4-24x^3-72x^2-25x+75=0 5x^5-20x^4-40x^3-16x^2-45x+180=0 -3x^5+3x^4+9x^3-7x^2+12x=12 x^3-x^2-13x-13=0 x^3+x^2=15x-15 Thank you for any help...I'm desperate please help :(

12. ## geometry

tan (?) = 3.5

13. ## Thermodynamics

400 g of water are emptied at 20 ° C in a vessel. The container is placed at Fire of a flame that gives it a certain amount of thermal energy of So that it takes 5 minutes for the water to reach a temperature of 90 ° C. If the vessel does not absorb

True or False: If a|b and a|(b + 1), then a = ±1. [NOTE: Use this Theorem 3: If a|b and a|c, then a|(bx+cy) for any integers x and y. PROOF: Since a|b, there is an integer u such that b = au. Since a|c, there is an integer v such that c = av.

15. ## science

What is the percent by mass solution made by dissolving 163g of table sugar cm 755g of water

16. ## Debate

Can someone give me some tips on how to do well in a debate and possibly win? I have an opening and closing statement, arguments for my topic, and arguments against the other topics. We are talking about the best alternative to using petroleum. My choice

17. ## Math... Sort of

How much would 10 cents be worth in 1906? (Like relative to how much it would be worth now)

18. ## living environment help!

what are 3 services which the fruit provides for the plant? Since this is not my area of expertise, I searched Google under the key words "fruit plant function" to get these possible sources: http://en.wikipedia.org/wiki/Flowering_plant#Fruit_and_seed

19. ## Mathematics

I need help on this following question there are 45 choirs members going to the recital.Each van can carry 8 people.How many vans are needed?

20. ## Organic Chemistry

Thin Layer chromatography TLC experiment What does it mean when it says with to much sample the spots will tail

21. ## Chem

Aviation fuel is significantly more expensive per gallon than diesel fuel. Why then is aviation fuel still used in Planes?

22. ## PHYSICS- Laws of Motion

When the cathode is heated from the 6.3 V AC supply, electrons are emitted from its surface. These electrons fall on the grid (which is positive) and a current flows in the cathode/grid circuit. As electrons stream from the cathode toward the grid, they

23. ## French

What is the best way to say this? When one has a flat tire, it is necessary to put air in it. I have to translate this, and my best guess is Quand on a pneu à plat , il faut mettre de l'air dans ça That doesn't really look right me at the end. Could

24. ## public health

What are the purposes of public health surveillance? How are they implemented and utilized by communities, governmental agencies, and health care organizations or providers?

25. ## natural science

What are the structural zones within the Earth? How are they detected scientifically?

26. ## historty

who was lowell mill strikers

27. ## French

I hope this question isn't too broad but.. When do you not pronounce the final letter of a word when the next word begins with a vowel? I hope that makes sense. I know that you are never supposed to say the "T" in "et" when it comes before a vowel but

28. ## galnds and their functions

Why are aspirin and ibuprofen effective in treating headaches? Thank you for using the Jiskha Homework Help Forum. Aspirin and the NSAIDs inhibit cyclooxygenase, leading to a decrease in prostaglandin production; this reduces pain and also inflammation (in

29. ## Math

Gene ad jay has collection of marbles. If jay give gene 2 of his marbles they would have an equal number. But if gene give jay 2 marbles, jay have 2 times as many as gene. How many marblea does jay have?

1. ## math

4/5

posted on March 14, 2017
2. ## Math word problem

so 1.50(x)/4 + 4.00(y)/4 = 712/4 0.375(x) + (y) = 178 (x) + (y) = 258 --------------------------------- -0.625(x) + 0(y) = -80 x= -80/-0.625 x= 128 x + y = 258 128 + y = 258 y = 258 - 128 y = 130 x = 128 (number of children tickets) y = 130 (number of

posted on February 22, 2017

thank you so much steve i get it. a|b, b=ae a|b+1, b+1=af substituting, ae+1=af 1=a(e-f), we conclude that a|b+1-b therefore a|1, a = ±1

posted on October 14, 2016

849 750

posted on August 30, 2016
5. ## math

So 1/6

posted on February 8, 2016
6. ## Math Help

jon drove 843 miles and rick drove four times as many miles how many miles did rick driv

posted on December 1, 2015
7. ## Math

5.625

posted on September 16, 2013
8. ## Delay of Gratification

i think the answer of the question is B

posted on April 10, 2012
9. ## geometry

what kind of geometric figure is an angle bisector

posted on September 15, 2011
10. ## healthcare

ok thanks that is like the sanitation stage of 1800,s how they practiced using different techniques to help clear diseases.

posted on August 24, 2011
11. ## History

Oops, I guess coying and pasting doesn't work here. Here are the rest: 5. Henry II 6. Richard the lionheart 7. John 8. Henry III 9. Edward I Longshanks 10. Edward II 11. Edward III 12. Henry VII 13. Henry VIII 14. Edward VI 15. Mary I 16. Elizabeth I 17.

posted on May 17, 2008
12. ## Chemistry

Ok thanks so much.

posted on January 13, 2008
13. ## Chemistry

So.. my work wasn't right. Above your message?

posted on January 13, 2008
14. ## Chemistry

Would you take the percentage of aluminum in the ore: 53.96/101.96 = 52.92 then take that much out of 2.0 metric tons or 2000 kg? So would it be 1058.40 kilograms?

posted on January 13, 2008