Posts by lili
Total # Posts: 122

algebra
two thirds of the students at school prefer beats headphones to all others.3/4 of those students prefer the wireless ones. 1/5 of those students prefer the pink ones. what proportion of students prefer the pink, wireless beats headphones? 
algebra
you can paint 4 pieces of wood 
algebra
33/8 
algebra
you have 3/4 gallons of paint. Each piece of wood you want to paint requires 2/11 gallon of paint. How many pieces of wood can you paint completely? 
algabra
the whole pizza 
algabra
nevermain is it 7/4 
algabra
7/8 ?? 
algabra
after a birthday party that began with 3 pizzas, there was 1/8 of one of them left, 3/4 of another and 3/8 of the last one. How much pizza was eaten? 
algebra
negative 120.82 
algebra
negative 15.18 
algebra
The balance is a checking account is $82.18 the owner of the account withdraws $100 the bank allows withdrawing more than the balance but charges a $33 fee. What is the new balance in the account? 
algebra
$2952?? 
algebra
a bank is owed $123 in interest on each of 24 customers loans. would this be best represented as a positive value or negative value for the bank? how much are they owed in total. 
algebra
yes that's what I mean 
algebra
a bank is owed $123 in interest on each of 24 customers loans. would this be best represented as a possible or negative value for the bank? how much are they owed in total. 
Algebra 1
you own $21.24 for some items you purchased. you give the cashier a $100 bill. you receive three $20 bills a$5 bill and four $1 along with three quarters and a penny. whats wrong with that situation 
Ss
new technology has made most of the jobs workers do ay a particular factory obsolete and they are laid off. which rype of unemployment are they experiencing? Structural •• Casual Frictional Cyclical 
maths(rational numbers)
James uses 1/3 of his land for growing durians, 1/4 for guavas, 3/8 for bananas and 9 hectares for mangoes. what is the total area? 
Math
The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by pH = logx where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the pH if the ... 
Math
2,48 >2,4 _ 1>2,463 
Social studies
What is a definition of citizenship? having been born in a country being a full and equal member of a nation having pledged to respect and support a governments's values fulfilling all the responsibilities and having all the rights of living in a society •• ... 
Technology
Ok cool thanks 
Technology
To indent the first line of a paragraph, which key should you use? A. Shift key B. Tab key ** C. Enter key D. Space key The _______ key is used to create spaces between lines within a document. A. Enter ** B. Tab C. Shift D. Ctrl 
biology
Ans 1) third option which is the study of interactions among organisms and their environment. 
Technology
Oh then b 
Technology
which fingers do you type: R T G V F with? right and left index fingers left index and middle fingers right index finger ** left index finger what is special about F and J? they have bumps they are in the exact center of the keyboard they are the keys that your middle fingers ... 
Math
A group of 24 won $576020 in Lotto. The winning amount was divided even between them and the remaining amount donated to charity. How much was donated? 
math
i dont know 
Social Studies
c b c a c a b d b a Im almost positive these are correct but I was wondering if you could just double check them 
Social Studies
1. Which statement best explains why the Louisiana Purchase of 1803 was important to the development of the United States? It created new taxes on imported goods. It resulted in immigration from France to the United States. It doubled the size of the country. It encouraged ... 
prealgebra
covert 1/3,3/10,0.03,0.33 in order from least to greatest 
AP Physics
A horizontal force of 160 N is used to push a 49.0 kg packing crate a distance of 7.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s If the crate moves with constant velocity, calculate the coefficient of kinetic friction. 
math
one half of what john's age was 4 years ago is equal to on of thrid of what it will be in 5 years time.How old is john now 
s.s
I did but can't find anything related 
s.s
How has Britain’s political system impacted Canada’s political system 
geometry
4.5cm 
Chemistry
A buffer solution A. contains approximately equal amounts of a weak acid and its conjugate base. B. increases its properties with an increase in the concentrations of the two buffer components. C. resists changes in pH. D. all of the above This one is D right 
Economics
Popcorn and coke are complements because the are often enjoyed together. When the price of coke rises, what happens to the supply, demand, quantity supplied, quantity demanded, and the price in the market for popcorn? 
Economics
Popcorn and coke are complements because the are often enjoyed together. When the price of coke rises, what happens to the supply, demand, quantity supplied, quantity demanded, and the price in the market for popcorn? I only need help with this one 
Economics
Analyze what happens to the market for cheeseburgers if the price of cheese rises. Be specific and explain each step. 
Economics
Can someone tell me if this are wrong , 
Economics
Higher prices allow businesses to increase production. This occurs because A) most producers are monopolies. B) the price effect doesn't work with supply C) marginal production costs usually rise when businesses increase their rates of production. D) higher prices can ... 
Economics
3)Soybeans are an important ingredient in making tofu. So, if the price of soybeans suddenly increased A)more tofu would be supplied at all possible prices. B)the supply curve of tofu would shift to the left. C)tofu producers would earn more profit. D)None of the above. ( its B) 
Economics
Supply is best defined as the measure of how much producers are willing and able to sell A) above the marketclearing price. B)at any one price in a given period of time. C) at all possible prices. D)according to their resources and profit motives. ( its D or B) 2) The Law of ... 
Economics
Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 
physics
the brakes of a car provide an acceleration of 5.0 m/s^2 . how long will it take for a car traveling at 20.0 m/s to stop ? 
Math
Here is the question : A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4 minutes. How many ... 
Science help ms sue.
2 and 5 was not correct: 2b 5a 
geometry
1) A billboard on level ground is supported by a brace, as shown in the accompanying diagram. The measure of angle A is 15 degrees is greater than twice the measure of Angle B. Determine the measure of Angle A and the measure of angle B. 
math
how can you use models to show and name a number 1,400 in two different ways? explain 
Physics
A surveyor measures the distance across a straight river by the following methods: Starting directly across from a tree on the opposite bank, she walks 249 m along the river bank to establish a baseline. Then she sights across to the tree. The angle from her baseline to the ... 
physics
A SUPPOSED TREASURE OF OLD SILVER JEWELRY IS UNCONVERED. a.02M^3 BOX OF THE "OLD JEWELRY" HAS A MASS OF 177KG.IS IT R EALLY OLD SILVER? IF NOT WHAT IS IT? 
Physics
why is the heat lost by the metal sample (Ql)equal to he heat gained by the water in the calorimeter (QG)? 
statistics
i have first part. If u have a second, wy can exchange. 
math please help!!
2x^24X3=6 
math
find an equation in slopeintercept form of the line that has slope 2 and passes through point A(8,7) 
math
find all real zeros of the function y=7x+4. a.4/7 b.7,4 c. 7 d.4/7 how do you find it? 
physics
An astronaut throws a wrench in interstellar space. How much force is required to keep the wrench moving continuously with constant velocity? Select one of the options below as your answer: A. a force equal to its weight on Earth B. a force equal to zero C. a force equal to ... 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ... 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ... 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application ... 
organic chemistry
when 2 propanol was used as the developing solvent, two substances moved with the solvent front (Rf=1) during TLC analysis on a silica gel plate. can you conclude that they are identical? if not what additional experiments would you perform? 
math
nearest tenth of a percent of 1/260 
ECONOMICS
factor of production 
physics
A metallic surface emits photo electrons when green light falls on it. But the metal does not emit when yellow light falls on it. Which of the following is correct when red light falls on the metallic surface? 
math
I am a 3 digit odd umber. my tens digit is one less than my hundreds digit but two more than my ones digit. The sum of my digits is 20. who am I? 
5th grade math
The answer is obviously 9,000. And by the way i live in Hollywood in a mansion and seen like 30 celebrities and i was Wondering if you would want to be My friends!plz!✌🏻 
Differenctial equations
Use the change of variable x = exp(s) to recast the differential equation xy′′+y′+(L/x)y=0 Please HELP ME 
math
it is 12/35 
chemistry
Find the theoretical yield when 100 mL of 0.1 M NaI is reacted with 0.50 mL of Br2 (density: 3.10 g/mL) to produce NaBr and I2. What is the actual yield if the percent yield is 81%? (Atomic masses (g/mol): Na, 22.99; I, 126.9; Br, 79.90) 
algebra
6(5)3(5)^2+3^3=18 
chemistry
(AAAAA)The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is 3.04, for Cl it is 1.36) In a galvanic cell, the two halfreactions combine to 2Li{+](s) + Cl{}2(g) > 2Li{+}Cl{}(aq) Calculate the cell potential ... 
chemistry
Great! The CN was the spectator that did "nothing." thank you very much. 
chemistry
the answer is 4AG + 8CN{} + O2 + 2H2O=> 4AG(CN)2{} + 4OH{} I do not understand the plugging in of CN. COuld You please explain? 
chemistry
I think I understand...but how do I do CN reactant? do I do a half reaction too?>with a product of CN2??? 
chemistry
Balance the following redox equation occurring in a basic solution: AG + CN{} + O2 = AG(CN)2{} I tried...but this is wrong...2H2O+ AG + CN{} + O2 = AG(CN)2{}+4OH{}... I am supposed to do half reactions...how do I spit the product AG(CN)2{}????? 
chemistry
oh never mindI got it!!! (I did half reactions...) 
chemistry
The reaction of MnO4 with oxalic acid (H2C2O4) in aciic solutiob, yielding Mn2+ and CO2 gas, is widely used to determine the concentration of permanganate solutions. (a) write a balanced equation for the reaction would it be MnO4 + H2C2O4 > Mn2C2O4 + H2O + O3????? 
statistics
5x4x3 
BK
If the incline is 25 degrees and a box that is resting on the frictionless incline 50 kg, what is the box acceleration 
chemistry
mol HA + NaOH > NaA + H2O i x 0.030 f x0.030 0 0.030 pH = pKa + log(0.030/x0.030) x = 0.042 mol PM=5.5g/0.042mol = 129.1 g/mol 
science
a girl delivering newspaper travels 3 blocks west, four blocks north, then 6 blocks east. What is the total distance she travel 
chemistry
? 
4th grade
sol. ass 5% + ? apa distilata = sol. hipochloride 4% 
physics
39.16 
Physics
1.6 
sequence and series
express the given repeating decimal 0.159159159 as a fraction 
Pre Algebra
can you teach me how to do math? please 
matc
If a manufacturer charges q dollars each for footballs, then he can sell 3000150q footballs per week. Find a polynomial R(q) that represents the revenue for one week. Find the weekly revenue if the price is $8 for each football. 
math
MY DAUGTHER WILL BE 10 YEARS NEXT WEEK AND THE HOMEWORK SAID: A NORMAL PERSON BLINKS ABOUT 25 TIMES PER MINUTE WHEN AWAKE. A) HOW OLD WILL YOU BE ON YOUR NEXT BIRTHDAY; B) TO THE NEAREST MILLION, HOW MANY TIMES WILL YOU HAVE BLINKED ON YOUR NEXT BIRTHDAY?. ASSUME YOU SLEEP 8 ... 
math
Roberto ate 3 pieces of a pizza and them felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into? Please could you explain me the problem and you give me the answer? thank you 
geometry
given: angle 1 is congruent to angle 2, angle measure 1=120 prove: angle measure 3=120 
PreAlgebra
So I figured out the answers and ways to help you out. 1. 4x + 5 + 9x  2 x = 6 Should equal 33 I Work Ex. 4x + 9x 5 + (2) 5x + 3 5(6) + 3 30 + 3 » 33  I 2. Should equal 26 E 3. Should equal 40 S 4. Should equal 69 R 5. 16 I 6. 12 H Then we go to #7. 9x  2 (x+6) ... 
Math
So I figured out the answers and ways to help you out. 1. 4x + 5 + 9x  2 x = 6 Should equal 33 I Work Ex. 4x + 9x 5 + (2) 5x + 3 5(6) + 3 30 + 3 » 33  I 2. Should equal 26 E 3. Should equal 40 S 4. Should equal 69 R 5. 16 I 6. 12 H Then we go to #7. 9x  2 (x+6) ... 
physics
For constructive interference d sinQ=ml=2x460nm=920nm For destructive interference of the other light, we have d sinQ=(m’+1/2)l When the two angle are equal, then 920nm=(m’+1/2)l l=1.84x103 nm for m’=0 l=613 nm for m’=1 l=368 nm for m’=2 The only ... 
Math(place value numberation)
what 1min 38.29 
MathsAlgebra.
z=6.75? 
algebra 2
oh yeah duh haha it doesn't matter what was before there're two choices haha i remember now :] hey answer my question!! 
algebra 2
i think ... isn't it 3/4? 
Algebra
that's what i got too