Monday

July 28, 2014

July 28, 2014

Number of results: 31,154

**pre-algerbra**

write an algebraic expression for each of the quantities being comared. The attndance on tuesday was 350 more than double the attendance on monday
*November 9, 2008 by nancy*

**science**

Consider the following chain of events. Describe in 350-700 words the sensory process that takes place as the scenario unfolds
*July 6, 2009 by marie*

**science**

Write a 350- to 700-word paper in APA format that includes all elements of the Energy Resource Plan outline.
*July 12, 2009 by riley*

**Phyiscs **

Please show work You decide to take a nice hot bath but discover that your thoughtless roommate has used up most of the hot water. You fill the tub with 270 kg of 30.0°C water and attempt to warm it further by pouring in 5.00 kg of boiling water from the stove. (a) Is this a ...
*July 15, 2010 by Anonymous*

**Physicss **

Please show work You decide to take a nice hot bath but discover that your thoughtless roommate has used up most of the hot water. You fill the tub with 270 kg of 30.0°C water and attempt to warm it further by pouring in 5.00 kg of boiling water from the stove. (a) Is this a ...
*July 15, 2010 by Anonymous*

**Math**

Four friends contribute sums of money to a charitable organization in Haiti in the ratio of 2:3:5:8. If the largest amount comtributed is $18,500, calculate the total amount contributed by the four people.
*November 13, 2011 by Shelly*

**algebra**

nico is saving his money for college he invests some money at 8% and $1300 less than that amount of 5% the investments produced the amount of $195 interest in 1 year how much did he invest at each rate?
*April 14, 2013 by rebecka*

**general physics**

When you take a bath, how many kilograms of hot water (40.8 °C) must you mix with cold water (11.3 °C) so that the temperature of the bath is 30.9 °C? The total mass of water (hot plus cold) is 190 kg. Ignore any heat flow between the water and its external surroundings.
*July 25, 2013 by justin*

**physics**

A cylinder with a piston contains 0.3 kg of water at 100 degrees C. What is the change in internal energy of the water when it is converted to steam at 100 degrees C at a constant pressure of 1 atm? The density of water is 1000 kg/m^3 and that of steam is 0.6 kg/m^3. The ...
*September 23, 2013 by Chip*

**Physics**

A high diver of mass 60.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 2.10 s after she enters the water, what average force did the water exert on her?
*September 22, 2008 by Jenny*

**chemistry**

Water (2690 ) is heated until it just begins to boil. If the water absorbs 5.29×105 of heat in the process, what was the initial temperature of the water?express answer in Celsius.
*September 20, 2010 by Kyle*

**physics**

A high diver of mass 50.0 kg jumps off a board 10.0 m above the water. If her downward motion is stopped 1.80 s after she enters the water, what average force did the water exert on her?
*September 21, 2010 by mark*

**Chemistry**

The human body obtains 1094 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)
*February 23, 2011 by Mr.Chem*

**Chemistry 1110**

If 3 L of hydrogen and 1.5 L of oxygen at STP react to yield water how many moles of water are formed? What gas volume does the water have at a temperature of 100degrees C and 1 atm pressure?
*March 13, 2012 by Trina*

**Math **

Water is flowing at the rate of 50m^3/min from a concrete conical reservoir of base radius 45m and height 6m. How fast is is the water level falling when the water is 5m deep?
*November 30, 2012 by Peggy*

**physics**

A water bed has dimensions of 1.83mx1.86mx.238m. The floor of the bed room will tolerate an additional weight of no more than 6660N. Find the weight of the water in the bed and determine whether it should be purchased. The weight of the water in the water bed is (volume* g* ...
*April 7, 2007 by CJ*

**Math**

A wildlife biologist in Nova Scotia is testing the pH of stream water. She hopes that the pH of the water is greater than 5.5 so that Atlantic Salmon returning this year to their natal streams will be able to reproduce. The hydrogen ion concentration of the water is 0.0000019 ...
*July 24, 2008 by Lynn*

**Calculus (Definite Integrals - Fluid Pressure)**

The ends of a water trough have the shape of the region bounded by the graphs of y = x2 and y = 4 with x and y both measured in feet. To what depth must the trough be filled with water so that the force exerted by the water on either end of the trough is 779.423 lb? (Water has...
*March 12, 2012 by Casablanca*

**Math Ratios**

Peter & Sam won some money in a competition. Peter won 5 times as much money as Sam. Sam won $4200 less than Peter. a. What was the ration of the amount of money Peter won to the amount of money Sam won to the total amount of money both boys won? b. What fraction of the total ...
*September 13, 2012 by Dottie*

**Science.**

Which abiotic factor is essential to all aquatic ecosystems except ocean hydrothermal vents, and why? Phytoplankton, because it provides a source of food salt, because it provides a source of minerals deep water, because it provides the necessary environment for organisms to ...
*February 4, 2014 by Anonymous*

**Physics**

An aluminum cube that has an edge length of 7 cm. is placed in a beaker of water that is filled to the brim. As a result the water overflows. what volume of water overflows when the aluminum cube is submerged in the water?
*July 3, 2011 by Lori*

**math**

for each pair of substances, circle the substance with more thermal energy and explain why? A0 500g of water at 35 degree C VS. 500 g of water at 85 degree C B) 500 g of water at 35 degree C VS. 250 g of water at 35 degree C
*December 19, 2011 by faith*

**chemistry**

The traditional method of analyzing the amount of chloride ion present in a sample was to dissolve the sample in water and then slowly add a solution of silver nitrate. Silver chloride is very insoluble in water, and by adding a slight excess of silver nitrate, it is possible ...
*March 16, 2010 by James*

**math,algebra**

what is the correct formula to use for the following problem: Find compound amount for the deposit.Round to the nearest hundredth $11000 at 6% compunded quarterly for 2years. the one that i am thinking of is: a = p(1 + (r)/(m))^mt so my a = 1100;r=0.06;t=2 so the interest = r/...
*June 28, 2007 by student*

**Science**

Five groups of rats are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After three weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight. Independent Variable...
*May 23, 2014 by Anonymous*

**Finance**

You have been asked by management to explain the variances in cost under your inpatient capitated contract. The following data is provided: Budget Actual Inpatient costs $12,568,500 $16,618,350 Members 42,000 42,000 Admission rate 0.070 0.095 Case mix index 0.90 0.85 Cost per...
*June 24, 2011 by Karam*

**CHEM. help please**

2 H2O (l) → 2 H2 (g) + O2 (g) 1. Without doing any calculations, which side will enthalpy favor in this reaction? Entropy? 2. What volume of water in gallons would need to be split to store the same amount of energy as found in 10.0 gallons of gasoline? (Gasoline ...
*November 2, 2010 by Andrew*

**chemistry**

Given the following chemical reaction: Zn+HCl-->ZnCl2+H2(g) If you measured the total volume of collected gas over water at 20 degrees celcius t be 428ml at a total pressure of 845 torr, how many milliliters of 2.6M HCl would be required to produce the correct amount of ...
*December 4, 2010 by regina*

**algebra**

Show a complete solution. Upstream, downstream. Junior’s boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?
*July 17, 2009 by Sandra*

**mechanics**

Consider a jet of water striking a vertical wall horizontally a speed of v. After hitting the wall, the water moves along the wall. If the area of cross-section of the water jet is S, Find the force that it applies on the wall. Take the mass density of water to be p.
*April 12, 2011 by maan*

**mechanics**

Consider a jet of water striking a vertical wall horizontally a speed of v. After hitting the wall, the water moves along the wall. If the area of cross-section of the water jet is S, Find the force that it applies on the wall. Take the mass density of water to be p.
*April 15, 2011 by mittal*

**chemistry help**

1. Calculate the energy change (q) of the surroundings (water) using the enthalpy equation qwater = m × c × ΔT. We can assume that the specific heat capacity of water is 4.18 J / (g × °C) and the density of water is 1.00 g/mL. Show ALL your work. The water has absorbed ...
*April 7, 2013 by MadiB PLEASE HELP :(*

**math**

Find the best buy on pasta sauce a. 45oz for $1.59 b. 1qt 16 oz for $1.99 c. 1qt. for $1.29 d. 48 oz for $1.79 my answer is A 15. Identify the base in the following statement 11% of what is 77? my answer is the base is What number 16. Identify the amount in the following ...
*May 1, 2010 by renee*

**Budgeting your money**

George's car insurance comes due every six month. What is the best way to budget for this expense? A.He should wait for the premium notices to arrive and pay them from his current income. B.He should put the entire amount of the premium in a savings account the first time he ...
*October 3, 2011 by ciara*

**math**

-18 > x/6-10 let "x" be the unknown number solve the inequality.
*February 4, 2010 by kendall*

**math**

find the unknown number in equation 9s=17+1
*September 14, 2010 by lance*

**Science**

How do you test the properties of an unknown material?
*June 12, 2012 by Lewis*

**math**

Find the unknown number in each equation. 5a-3a= 18 a=
*September 18, 2012 by Anonymous*

**math**

find unknown proportion to solve 25.83/3.71=x/5.3-
*December 5, 2012 by Anonymous*

**math**

In factoring ax^2 + bx + c, what are the steps in finding the unknown "b"?
*March 26, 2013 by Jane*

**Math**

Solve the equation for unknown quantity x. 2x+29
*December 14, 2013 by Clare*

**Chemistry**

Pure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were mixed in a sealed flask at room temperature. The flask was placed in a heated water bath and maintained at 323K until equilibrium was established. CH3COOH(aq) + C2H5OH(aq...
*May 1, 2012 by Henry*

**Math**

You are in charge of a tank to be used for water storage. Your boss has told you that he wants a cylindrical tank with a minimum capacity of 300,000 cubic feet. Your boss wants to spend the least possible amount in painting the tank. Design a tank to meet this objective.
*May 15, 2008 by Megan*

**Compound interest**

Hello My teacher skipped over this and I have no clue how to do this or the equations. Help would be wonderful thank you If 6000 dollars is invested in a bank account at an interest rate of 10 per cent per year, find the amount in the bank after 15 years if interest is ...
*May 12, 2012 by someone*

**Business**

One of your relatives has come into a significant amount of money recently, and wants to invest $100,000 dollars in a stock which is listed either on the New York Stock Exchange (NYSE) or the NASDAQ. This relative has asked you to recommend three stocks, and will choose from ...
*March 11, 2012 by Chase*

**Chemistry help**

I am confused as to how to solve the below problem. I am not sure which formula to use. At first I thought I calculate the molar mass of NaOH, followed by calculating moles of NaOH. But I don't have the mass of NaOH to calculate moles. Do I convert 10mL to grams to Be able to ...
*March 15, 2012 by Julie*

**Biochemistry**

Hi, In this task for our school, we were requested to investigate a method for testing the amount of caffeine content in coffee. There are 3 main questions as fellows 1. What would be a good method to measure the amount of caffeine in coffee without extracting it? 2.What is ...
*February 8, 2010 by Dave*

**CHEMISTRY**

When 50.0 cm3 of 0.100 mol dm-3 AgNO3 is mixed with 50.0 cm3 of 0.0500 dm-3 HCl in a polystyrene cup, the temperature increases from 20.00°C to 20.35°C. Assume that the specific heat capacity of the solution is the same as that of water, and that the density of the solution ...
*November 12, 2013 by Anonymous*

**Chemistry**

Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN- ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ...
*December 3, 2013 by Anonymous*

**physics**

A rectangular crate of weight W is floating in water with 2/3 of its volume above water. If you now want to push down on it to hold it lower in the water, so that only 1/3 of its volume is above water, the downward force needed to do this is: A. W B. 2W C. W/2 D. W/3 I have no...
*December 8, 2009 by Sarah*

**Physics**

A freezer has a coefficient of performance of 6.30. It is advertised as using 486 kWh/yr. Note: One kilowatt-hour (kWh) is an amount of energy equal to running a 1-kW appliance for one hour. a) On average, how much energy does it use in a single day? I got 4.79 x 10^6 J (b) On...
*February 16, 2011 by Z32*

**Derivatives**

a pationt recives an injection of 1.5 milligrams of a medication, and the amount remaining in the bloodstream t hours later is A(t)= 1.5e^-0.08t .find the instantaneous rate of change of this amount: a) Immediately after the injection (time t=0)
*June 28, 2011 by Courtney *

**algebra**

select a set of equations.mary invested one amount a %10 simple invest, and a second amount at %3 interest, earning $21.72 in one year. If she would have earned $15.07. What were the two amounts?
*March 4, 2012 by jessie*

**chemistry**

so we did a chem lab and one of the questions is to tabulate the amount of S2O3 consumed in moles and times (sec) for each run. I'm just not sure how to calculate the amount consumed. Can someone please explain how?
*February 1, 2014 by Anonymous*

**biology**

POLARITY COHESION SURFACE TENSION CAPILLARY ACTION UNIVERSAL SOLVENT ADHESION match definitions Because water molecules stick together, they form a thin film on the surface of pools of water, on which some organisms can walk Water molecules are able to move against the force ...
*November 20, 2013 by anonymous*

**physics**

In terms of impulse and momentum, why are airbags in automobiles a good idea? A.)Airbags actually do not help if a car is in an accident. B.)They increase the amount of force involved in a collision. C.)They decrease the amount of time for a collision to happen. D.)They ...
*February 25, 2013 by George*

**Chemistry**

CaH2 is so reactive with water that it can be used to "dry" solvents other than water. If a sample if solvent that contains a total of 14g of water is added to 24.6g of calcium hydride, which of these will remain after the reaction is complete: water or calcium hydride? A. ...
*October 4, 2009 by Amanda*

**Maths**

A container in the shape of a right circular cone with vertex angle a right angle is partially filled with water. a) Suppose water is added at the rate of 3 cu.cm./sec. How fast is the water level rising when the height h = 2cm.? b) Suppose instead no water is added, but water...
*August 9, 2012 by leone*

**jj**

Find the percent of increase or decrease. Round your answer to the nearest percent. Original Amount: $6.50, New Amount: $11.50, Percent of Change: ___%
*February 18, 2011 by Anonymous*

**Chemistry**

When doing a simple distillation of ethanol-water, is the vapor pure ethanol or does it also contain water? (knowing that ethanol has lower boiling point than water) If it is not pure ethanol, why is it not possible to separate water & ethanol completely? Thanks in advance.
*January 4, 2012 by Namie*

**physics**

I have 2 questions: Assuming that water has a density of exactly 1 g/cm3, find the mass of one cubic meter of water in kilograms. Suppose that it takes 10.0 h to drain a container of 5700m3 of water. What is the "mass flow rate," in kilograms per second, of water from the ...
*September 2, 2010 by Scott*

**AP Chemistry**

To prepare 1.000 kg of 5.5 percent by mass KCl (aq), one may dissolve a. 994.5 g KCl in 5.5 g of water b. 5.5 g KCl in 994.5 g of water c. 5.5 g KCl in 1000.0 g of water d. 55 g KCl in 945 g of water e. 55.0 g KCl in 1000.0 g of water
*April 4, 2008 by Joe*

**Solving Inequalities Using Addition or Subtraction**

4) Solve. 2.7 < b + 5 (1point) b>7.7 b>-2.3*** b<2.3 b< -7.7 5) You have a gift card for your favorite clothing store for the amount of $60. You have found a shirt you want to buy that costs $15. If you don’t want to spend more than the amount of the gift card, ...
*October 5, 2013 by Gabby*

**need help on conversions**

Use the density of water: 1gram/ml= 1g/cm^2 looks like the volume of 1 cm^3 has a mass of one gram. 1 cm3 of water weighs 1 gm. would you help with converting 1cm3 of water to grams
*December 14, 2006 by bobpursley*

**Physics**

A high diver of mass 52 kg jumps off a board 11 m above the water. If, 4.7 s after entering the water his downward motion is stopped, what average upward force did the water exert?
*December 20, 2010 by Anonymous*

**physics**

Water is flowing down through the pipe shown in the drawing. Point A is 0.410 m higher than B. The speed of the water at A and B are vA = 5.00 m/s and vB = 3.80 m/s. Determine the difference PB - PA in pressures between B and A. The density of water is 1.00x10^3 kg/m3.
*November 7, 2013 by john*

**Math**

Beyounce has a stack of $1 bills,Kelly has some $5 bills, and Michelle has more than $10 bills. Each person has the same amount of money. What is the least amount each one has?
*September 20, 2010 by Shakira*

**more math**

how do I add these mixed numbers 4 2/7 + 1 5/7
*July 14, 2008 by Ann*

**Math**

Mixed number: 5 1/2 multiplied by 3! Helpppppppppppppppp!
*April 1, 2008 by Kimmi*

**math**

How do multiply mixed numbers and fractions
*May 21, 2008 by Jenna*

**math**

Write 8% as a fraction or a mixed number.
*September 4, 2008 by Coco*

**math**

how do you muiltply fractions and mixed numbers?
*September 17, 2008 by bonnie*

** chemistry**

50 mL of 1.50* 10^-2 M HI(aq) is mixed with 75.00 mL of 1.10* 10^-2 M KOH(aq). What is the pH of the Final solution
*February 16, 2009 by reena*

**math**

improper fractions to its mixed number
*March 17, 2009 by ricky*

**MATH**

I AM HAVING A PROBLEM WITH MIXED FRACTIONS
*July 4, 2009 by KEISHA*

**MATH**

Rename each fraction as a mixed number. 17/4.
*November 7, 2009 by Bradley*

**Math**

What mixed numbers fall between 5 and 6? 5 - - - - 6
*March 5, 2010 by Lew*

**math**

How do i do mixed numbers to improper fractions.
*November 30, 2010 by kelsey*

**math**

how to make 29 9ths a mixed number
*December 19, 2010 by Rachel*

**math**

write a mixed number for 106
*April 26, 2011 by Anonymous*

**math**

Write a mixed numeral for the answer. 17 3/5 - 14 23/27
*May 3, 2011 by Sadara*

**math**

help solve mixed numbers problem
*May 24, 2011 by latasha*

**Math**

How do you put 33/10 & 29/6 into mixed numbers????!:)????!(:????!(:????!(:
*June 12, 2011 by Ling hoe*

**Chemisty**

If 59.0 mL of 0.40 M HI is mixed with 100. mL of 0.10 M KOH what is the resulting pH?
*March 16, 2012 by Tracey*

**math**

estimating with fractions and mixed numbers
*September 11, 2012 by Anonymous*

**south piedmont**

convert to a mixed number 89/6
*October 22, 2012 by tame mccormick*

**business math**

how do you convert 89/6 to a mixed number?
*October 24, 2012 by lawanda*

**Math**

Change 30/20 into a mixed number
*October 25, 2012 by Jennifer*

**math**

how do i get the mixed number 3 7/4 in to simplest form
*February 7, 2013 by Zain*

**hurry past bedtime **

As a mixed number what is 70÷9
*February 26, 2013 by noahc*

**Math**

how to you multiply fractions (not mixed numbers)
*April 18, 2013 by chris*

**Math**

When I add the mixed number 1 5/6 + 1 3/4 I get 2 19/12 How do I simplify that?
*May 1, 2013 by Jerald*

**Math**

Convert 217% to a mixed number.
*May 18, 2013 by Denise*

**Math**

Convert 57/9 to a whole or mixed number.
*July 21, 2013 by April *

**math subtracting mixed numbers **

9 and 3/4 minus 4 and 1/3 =
*September 29, 2013 by Tsiyon*

**Math**

Convert 126% to a mixed number
*November 11, 2013 by NyMaria*

**English**

The politician has a large (amount, number) of supporters. a. amount b. number I would say Number. I just need a heads up..
*October 10, 2011 by HM*

**math**

Determine the down payment and the amount to be financed for each home described below. (a) $360,360; 10% down The down payment is $ 1 The amount to be financed is $ 2 (b) $960,000; 20% down The down payment is $ 3 The amount to be financed is $ 4 Don't know if I answer this ...
*August 25, 2012 by Anonymous*

**ELA**

can you proof read When we turn on the top,we expect an abundant supply of clean, fresh water to flow out. Having one of the world's largest supplies of fresh water, these expectations may usually be met in Canada . However,in many other countries, water is a scarce commodity...
*January 3, 2010 by anu*

**Chemistry**

You are given 350 mL a stock solution of 8.32E-03 M benzoic acid, MW = 122.125 g/mol. If the actual density should be 1.05 g/mL. What is your percent error?
*April 3, 2008 by Udith*

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