Wednesday
May 4, 2016

Posts by Anonymous

Total # Posts: 96,159

math
A boat takes 2 hours to go 40 km down the stream and it returns in 4 hours . Find the speed of the boat in still water and the speed of the stream
May 4, 2016

SAT math
The population of a city can be modeled using the formula P=100,000e^(0.05t), where t is the number of years after 2012 and P is the city's population. Which of the following equations can be used to find the number of years after 2012 that the population will triple to ...
May 4, 2016

physics
For the second part use the same equation Sub k (what you found earlier) and x=0.750 to get F
May 4, 2016

Math
Difference between two numbers is 5 and the product is 6 find the numbers
May 4, 2016

science
If oxygen have 8 protons and 5 electrons is it stable
May 3, 2016

math
i am a little confused about rise/run
May 3, 2016

math
The roof of a home rises vertically a distance of 8 ft through a horizontal distance of 12 ft. Find the pitch (slope) of the roof plz help ASAP
May 3, 2016

math
The roof of a factory rises vertically 6ft through a horizontal run of 27 ft. What is the pitch of the roof?
May 3, 2016

Mathematics
estimate the sume of 382+744 answer 1100
May 3, 2016

math
A guy wire (a tensioned cable designed to add stability to a free-standing structure) is attached to a telephone pole whose height is 25 ft. If the wire is attached to the ground at a point 15 ft away from the base of the pole, what is the slope of the wire?
May 3, 2016

math
the answer seems wrong
May 3, 2016

math
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%? plz solve fast! needed by 6:30pm
May 3, 2016

Math
There is a school of 1,200 pupils. 3/5 of them are girls. A. What fractions are boys? B. How many pupils are girls? C. How many pupils are boys? I have no idea how to solve this. If someone could give me a method it would be really helpful
May 3, 2016

math
How many “words” can be formed using the letters of the word ARRANGEMENT?
May 3, 2016

math
Stock worth $60 a share dropped in value by 20% on Monday, then, again by $10 the next Tuesday and, finally, increased by 55% the following Friday. What was the final price of a share?
May 3, 2016

math
The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
May 3, 2016

math
During last year the number of students in RSM increased by 100%. This year, the number of students increased by 150%. What percent of the number of students now was the number of students two years ago?
May 3, 2016

math
solution
May 3, 2016

math
any sulutions
May 3, 2016

math
Due to inflation there were two demand increases. After the second increase the price for a certain item became twice as big as the original. By what percent was the first increase, if the second increase was 25%? can you solve this fast
May 3, 2016

Algebra
10. Solve each radical expression. Check your solution. 1=√(-2v-3) 11. Solve each radical expression. Check your solution. √(n+5)= √(5n-11) 12. Tell which solutions, if any, are extraneous for each question. √(12-n)=n; n= -4,n=3
May 3, 2016

trigonometry
a ferris wheel is 50 meters in diameter with the bottom of the wheel 1 meter off the ground it makes a full revolution in 12 minutes. What function would track the height above the ground for a point that is at the bottom of the wheel when it starts moving?
May 3, 2016

life orientation
1.a right to life 2.a right to access education 3.a right to be heard I chosen them because they are likely to happen in our community.and so far those rights are violated but it seems like nobody takes them to consideration. children quit school everyday,regarding to certain ...
May 3, 2016

history
The biggest secret of rizal is?
May 3, 2016

ACCOUNTING
WHY SHOULD FINANCIAL STATEMENTS BE PREPARED IN ACCORDANCE TO THE IFRS
May 3, 2016

math 1324
a natural history museum borrowed $2,000,000 at simple annual interest to purchase new exhibits. Some of the money was borowed at 7%, some at 8.5%, and some at 9.5%. Use a system of linear equations to determine how much was borrowed at each rate if the total annual interest ...
May 3, 2016

Science
Calculate the mass of silver deposited when a current of 2.6 A ls passed through a solution of silver salt for 70 minutes. (Ag=108; 1 faraday=96 500 c)
May 3, 2016

Science
1. Which of the following is the correct definition of minerals? A) A naturally occurring, inorganic solid that has a crystal shape and definite chemical composition. B) A naturally occurring, inorganic solid that forms through crystallization of melted materials. C) A ...
May 3, 2016

Math
How do I solve for t with more than one t? -4.9t^2 - 28t
May 3, 2016

chemistry
That was what I put as my answer but my teacher marked it wrong and said "this is asking for the highest energy orbital versus the outermost shell." But in my book it has 1 as the highest energy orbial:/
May 3, 2016

chemistry
How many electrons are in the highest energy orbital of the element copper? There is 1 in the outermost shell but what about the highest energy orbital?
May 3, 2016

Chemistry
what salt results from the neutralization of phosphoric acid with potassium hydroxide? would it be: 3NaOH + H3PO4 -> Na3PO4 + 3H20 OR H3PO4 + sKOH -> K3PO4 + 3 H2O
May 3, 2016

Chemistry
THANK YOU!!!!!!
May 3, 2016

Chemistry
what salt results from the neutralization of phosphoric acid with potassium hydroxide? would it be: 3NaOH + H3PO4 -> Na3PO4 + 3H20 OR H3PO4 + sKOH -> K3PO4 + 3 H2O
May 3, 2016

English
Oops!7. exhaustive 8. formulate
May 2, 2016

English
Please check 4. Constrict 8 exhaustive 9. Pretentious 10. Reconcile
May 2, 2016

English
Please help if I did right! Thanks. Whose brilliant idea was this anyway?" Sarah asked." If people were intended to sleep on the ground and cook over a fire, we wouldn't have beds and microwave ovens." "Stop complaining," Emily said." At ...
May 2, 2016

milam middle school
A drawer contains a blue shirt, a black shirt, and a white shirt. Another drawer contains a blue pair of pants and a black pair of pants. one shirt and one pair of pants are chosen at random. How many different possible outcomes are there?
May 2, 2016

Chemistry
Usinf your periodic table, Indicate whether each other following substances could act as an oxidizing agent (OA), a reducing agent (RA) or both (OA/RA): (A.) Ba2+ (aq) So I think it should be reduction because it gained 2 electrons? (B.) Co2+ (aq) : RA (C.) Se(s) : (D.) Cs(s...
May 2, 2016

Math
Val Measures the diameter of a ball as 12 inches. How many cubic inches of air does this ball hold, to the nearest tenth? Use 3.14 for Pi
May 2, 2016

math
While exploring for oil, it was necessary to carry at least 18tones of supplies and 80 people into a desert region. Two types of vehicles are available :landmaster and sandrovers. Each landmaster could carry 900kg of supplies and 6 people. Each sandrover could carry 1350kg of ...
May 2, 2016

pre-cal
a page that x inches wide & y inches high contains 26 square inches of print. the margins on the top & bottom are 1.5 inches deep and the margins in the sides are 1 inches wide. a. sketch the situation above b. find the total area of the page c. find the domain based on the ...
May 2, 2016

math
Translate this sentence into an equation. The difference of Rick's age and 9 is 69 Use the variable r to represent Rick's age.
May 2, 2016

science
a constant force applied at an angle of 20 above the horizonal , pulls a 200 kg block, over a distance of 3 m, on a rough, horizontal floor. the coefficient of kinetic friction is 0.2 show that work done by the kinetic frictional force on the block can be written as Wfk = ( -...
May 2, 2016

English
what passage?
May 2, 2016

Science
In which of these situations is convection most likely the main form of heat transfer? Warm air from a heater on the first floor of a house moves to the upper floors. The sides of a metal pan become hot when the pan is placed on a stove burner. A person gets a sunburn from ...
May 2, 2016

Physics
T=2pi*sqrt[L/(g-a)] B) 3.14
May 2, 2016

physics
to go from town a to b a plane must fly about 1780km at an angle 30° west of north . how far north of A is B ?
May 2, 2016

science
A 0.1 M NaOH solution is used for holder 50, or ml of a 0.100 M solution of acetic acid. Calculate the pH of the solution after the addition of 50.0 ml of sodium hydroxide
May 2, 2016

Math
sorry I meant 0.9 and it's not 9% nor 10%
May 2, 2016

Math
Financial Mathematics why is it that a question states that a person buys a car for R122 000 and pays 10% of the cost but then the answer to it they have multiplied the amount by 0.09 which is 9%?
May 2, 2016

Physics
A 1.8 kg piece of a metal initially at a temperature of 180oC is dropped into the water with mass of 14 kg. The water is in a container made of the same metal with mass 3.6 kg. The initial temperature of the water and container is 16.0oC, and the final temperature of the ...
May 1, 2016

Math
Mrs.thomas bought a new blanket shaped like an equilateral triangle that measures 3 feet on each edge.how long should the ribbon be?
May 1, 2016

accounting
Below is budgeted production and sales information for Flushing Company for the month of December: Product XXX Product ZZZ Estimated beginning inventory 32,000 units 20,000 units Desired ending inventory 34,000 units 17,000 units Region I, anticipated sales 320,000 units 260,...
May 1, 2016

math
how much sugar am i using if i use 3 tablespoons and want it in teaspoons? 1/2 teaspoons = 0.16 tablespoons
May 1, 2016

Math
Potatoes are sold in 2.25 pound bag. how many whole bag must tanisha buy in order to have enough potatoes?
May 1, 2016

Exponential Modeling
The landscaper pours 200 gallons of herbicide in a pond. The herbicide degrades 10% each week. How much will be in the pond after 1 week?
May 1, 2016

Exponential Modeling
A species of beetles grows 32% every year. Suppose 100 beetles are released into a field. How many beetles will there be in 10 years?
May 1, 2016

Exponential Modeling
A can of soda in 1972 costs $0.10, by 2012 it cost $1.25. Find the rate at which the cost of a can of soda increases over this time period.
May 1, 2016

Exponential Modeling
4.25 x 75 = $318.75 Profit = $88.75
May 1, 2016

Exponential Modeling
You invest $230 to start a sandwich stand and decide to charge $4.25 per sandwich. How much money will you make if you sell 75 sandwiches?
May 1, 2016

Exponential Modeling
Wait, just realized my mistake. It's actually 18,134 is the total loss of the value of the car. 25,000 - 18,134 = 6,866 (The car's value now)
May 1, 2016

Exponential Modeling
How did you get 16,250? You probably need to recheck your answers.
May 1, 2016

Exponential Modeling
1,250 A trick I've learned is by removing 10% each time, and that's easy because all you have to do is move the number over once to the right. 25,000 -> 2,500 2,500 * 3 = 7,500 10% of 25,000 is 2,500 / 2 = 1,250 Or 5% of 25,000 7,500 + 1,250 = 8,750 8750 x 3 = 26,...
May 1, 2016

Exponential Modeling
A certain vehicle loses 35% of its value each year. Compute the value of the vehicle at the end of the 3rd year if the car has an initial value of $25,000
May 1, 2016

Language Arts
Thanks Ms. Sue, that was very quick too. :)
May 1, 2016

Language Arts
In Act II, Scene 4 of "A Christmas Carol: Scrooge and Marley", what are the two women and the man selling to Old Joe? A. items they stole from Scrooge's room after he died - (I believe it's this one.) B. items Scrooge gave them before he died C. items ...
May 1, 2016

Bio
The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are A. proteins B. lipids C nucleic acides D. complex ...
May 1, 2016

Bio
How is information for a specific protein carried on the DNA molecule? A. As a sequence of nucleotides B. In the double helix shape of the condensed chromosome C.In the ratio of adenines to thymines D.As a pattern of phosphates and sugars A C D are all statements that make ...
May 1, 2016

Life orientation
Assess the extent to which bad road use has a direct impact on the physical,emotional,social and economic aspects to the family,the community and the country
May 1, 2016

Bio
Does diffusion and osmosis move from high to low concentration?
May 1, 2016

Geometry ( helllppp pleaaassse )
A point on the ceiling of a room is 12ft. from each of the vertices of a triangle on the floor whose legs are 6ft. A and 8ft. respectively. find the length of the ceiling. 2. With a 12ft. pole marked in feet, how can one determine the foot of the perpendicular let fall to the...
May 1, 2016

algebra tricky q
Clem Colfax had $10 to buy groceries. He needed milk at 70 cents a carton, bread at 60 cents a loaf, breakfast cereal at 50 cents a box, and meat at $1.50 a pound. He bought twice as many cartons of milk as loaves of bread, the number of boxes of cereal was one more than the ...
May 1, 2016

algebra
Graph the direct variation y=−1.5x. Using the graph, find: Reference b The value of x when y=−3; 4.5; 6
May 1, 2016

Exponential Modeling
The half-life of a radioactive substance is one day, meaning that every day half of the substance has decayed. Suppose you have 100 grams of this substance. How many grams of the substance would be left after a week?
May 1, 2016

Physics
An engine works between the two temperatures 200 C and 120 C. Calculate its efficiency in percentage?
May 1, 2016

Math
The sum of the first three terms is 24 and the sum of the next three terms is 51. Find the first term and the common difference
May 1, 2016

Dissociation Equations Answer Check
1. Write the equation for the dissolution of potassium iodide in water. KI(s) + H20 --> K+ (aq) + I- (aq) 2. Write the equation for the dissolution of magnesium bromide in water. MgBr2(s) + H20 --> Mg2+ (aq) + 2Br- (aq)
May 1, 2016

Exponential Modeling
293
April 30, 2016

chemistry
how do i figure out grams/tablet if I am in units of mol/L? >_>
April 30, 2016

chem
uhh whoah not 150 lol I calculated 1.67g per 30 mLs, but i'd like some verification :)
April 30, 2016

chem
176.12 g/ mol I meant to write
April 30, 2016

chem
0.283 M solution X 176.12 g = 50 g/L how many g per 30 mL? 150?
April 30, 2016

Geography
If functions of a city or town _____ in number of importance it will grow in ____ if they decrease the population will _____ I can't find where this is stated anywhere in the powerpoint I was given to look at
April 30, 2016

Geography
State where would these take place (rural or urban) Cottage industry-Rural Commercial industry-urban
April 30, 2016

math
Lets look at a sample 4/8 reduced by 50% 2/8 reduce den by 25% 2/2 = 1 4/8 is 1/2 so compare it to 1 it is doubled. 1/2 divided by 1/4 = 1/2 x 4 = 2
April 30, 2016

math
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?
April 30, 2016

math
Median is the middle range is largest- smallest 5 is the range so 1/2 is below and 1/2 is above 4 1/2 ----7------9 1/2 so. it cannot b 1
April 30, 2016

maths
The sum of 2 number is 103 .If one number is 37 . Find the other number
April 30, 2016

HEALTH PLZ HELP
thx a lot Reed you have helped me and i got 0/15 on it! THX!
April 30, 2016

Life orientation grade 12
Pls HELP Me the impact of corruption and fraud
April 30, 2016

Math
A number is selected from 5 t0 14 inclusive.what is the probability that it is either an even number or a factor of 40
April 30, 2016

rio claro west secondar
[0.4] to the power 2 multiply by 3.7
April 30, 2016

math
i don't think that is the right answer
April 30, 2016

math
Stock worth $60 a share dropped in value by 20% on Monday, then, again by $10 the next Tuesday and, finally, increased by 55% the following Friday. What was the final price of a share?
April 30, 2016

math
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?
April 30, 2016

math
the answer is incorrect
April 30, 2016

math
A store gets a bucket of eggs for $16.20 and sells a dozen eggs for $3.50. If there are 450 eggs in the bucket, by what percent has the store increased the price per dozen eggs?
April 30, 2016

math
how do you adjust the fraction?
April 30, 2016

math
If a gang of eight rob a bank, what percent of the loot belongs to three of the robbers? What percent belongs to them if two of the gang are killed? By what percent does each robber’s share increase?
April 30, 2016

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