Monday
July 28, 2014

Search: Problem Solving Math Question

Number of results: 118,867

Math
Here is the math problem. 150 is 75% of what number? I know the rate is 75 percent and the base is 150. I am looking for the amount. My questions is how to find the answer? Do I divide? Okay maybe I am missing a huge section as to finding the answer to this question. I went ...
June 28, 2007 by marinda

Physics
At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the magnitude and direction ...
January 22, 2012 by mo

Physics
At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the magnitude and direction ...
January 22, 2012 by mo

math...help please!
ok i REALLY am stumped. please help! it is a sequence problem here is the problem.... 120,60,30 __, __, __. if you could give me the rule for this problem and the next 3 numbers that would be so great!!!!!!
September 18, 2007 by Rebekka

problem solving
If a circuit has a 3.9 k ohms resistor and a 5 uF capacitor, find the current flow in the circuit at 0.005 seconds, if the maximum current flow in the circuit is 1.5 mA.
November 1, 2010 by milton

algebra
I've seen the exclamation point (!) put after numbers (ex. 3!), but I don't know what they mean. Can somebody tell me the steps on solving a problem like this? Thanks!! ! means factorial. 5! means 5*4*3*2*1 5!/3! means (5*4*3*2*1)/(3*2*1) which is equal to 5*4 or 20 Ohhhhhhhh...
April 24, 2007 by Emily

calculus
A question on my math homework that I can't seem to solve... Rotate the region bounded by y=x^2-3x and the x-axis about the line x=4. Set up the integral to find the volume of the solid. I'm pretty sure that the integral is in terms of (dy), and has bounds of 0-4. Using the ...
January 24, 2009 by Michelle

chemistry
Benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1 C . At what temperature does benzene boil when the external pressure is 410 ? This is how I am solving this problem, ln(415/760)= (30720/8.314)*(1/80.1 - 1/T2) It is asking to answer using two...
January 25, 2009 by Lost

Trigonometry (Logarthims)
Give checks to the following two questions Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=32°28'30" without logarithms i can do this problem easily and i have. but when i try solving it with logarithms i keep getting...
February 24, 2011 by Anon

Chemistry - electron configuration
Hello Dr.Bob. Could you please take a look at the following question? I know the correct answer for it, but I'm not sure how to go about solving it. Which ground state electronic configuration will most readily ionize to a 2 + cation? A) 1s22s22p63s23p64s23d10 B) ...
April 19, 2013 by Constantine

math
I REALLY NEED HELP IN SOLVING THIS PROBLEM PLEASE HELP!your high school diploma from american academy landed you to a job paying good money.you were wise and saved $150,00to buy your own company.the nuts are .01 pernut.you say you are wise and you are buying 3million nuts and ...
March 8, 2008 by JESSICA

Psychology
A theory can be defined as: a an attempt to test behavior and thought process. b an accurate description of problem-solving behavior. c the basis for relationships among facts and principles. d the application of the scientific method through statistics. I think the answer is ...
April 25, 2011 by Nicci

problem solving
Suppose your car gets 36 miles per gallon of gasoline, and you are driving 45 miles per hour. Using unit analysis, find the number of hours it takes to use 1 gallon of gas. I got 48 minutes but I'm not sure.
December 8, 2012 by ben

Math
Need help solving this problem please. Andrei buys a painting and sells it to Boris Andrei makes a 60% profit on the sale Boris sells the painting to Clarissa Clarissa pays 1.5times the price that andrei paid for the painting Boris made a loss What is his loss as a % of the ...
June 23, 2008 by Maggie

graph
How "Graphs" can play a role in the daily practice life in solving different kind of problem Graphs are visual representations of quantitative relationships. Viewing the relationships visually can make certain facts about these relationships more evident. I hope this helps. ...
January 18, 2007 by queen

math
What models can be used to help explain the concepts of addition and subtraction of rational numbers? What are the benefits to using such a model? What limitations does the model have? Create an addition or subtraction problem and demonstrate how the model might work. ...
October 26, 2010 by glenn

to bobpursley,math
This is what i have am i wrong or correct.Or how can word it or modify it to be with what the directions are asking? Directions: Create one statement in English representing an algebraic relationship. My answer: PROBLEM: A DOZEN EQQS COST $1.20. WHAT IS THE PRICE OF EACH (1) ...
January 1, 2007 by jasmine20

biostatistic
I am sorry, I do not know how one question is printed so many times. There was some problem in submission of question and when it is submitted, it is printed so many times.
December 11, 2012 by nono

Math
How do you work this problem step by step? p-12 when p= 22 We don't know what book you are using and probably none of us has a copy if you told us the name of the book. Please post your question and someone will try to help. Please be specific and tell us exactly what you don'...
September 7, 2006 by tonya

Math
I have a problem..... -4(2x-3)=-8x+5 I understand first you distribute the -4 so you would have -8x+12=-8x+5 Then if you try and move x over to either side you completley get rid of x.... am I missing something or is this problem not solvable? Thank you I think I just solved ...
March 29, 2007 by russell

stastics
solving problem the chicago public school system has about 680 schools about 130 of the schools will be closed. if the five schools are chosen at random find the probability that at least three of them willl be closed
April 3, 2013 by lilly

math
can someone check my answer Graph by first solving for y. x + 2y = 8 x-x+2y=8-x 2y=8-x 2y/2=8/2-x y=4-x y=4-x/2 y=4-1/2x
January 11, 2008 by amy

Math
I need help on two problems. How would you go about solving: 1. 3(a-5) + 19= -2 2. -9 - 3(2q-1)= -18
October 1, 2008 by Faye

math
what is the difference between ( and [ in context to solving algebric equation?
June 27, 2009 by Ted Mosbi

math
1) x+8y=33 -x+4y=3 I need help solving this one using the elimination method!
March 13, 2010 by Kristin

Math
Why is it necessary to perform a check when solving rational equations?
August 5, 2010 by Jayde

math
17x – 42 = -39 i need to show the steps for solving this equation
October 14, 2010 by Jeninifer

Math
Solving quadratic equations by graphing? 3. x2-4x + 6 = 0 4. x2-4x-1=0 5. 4x2-12x + 3 = 0 6. x2-2x-4=0
February 27, 2011 by Erin

Math
"Solving a system involving three unknowns." 3d+e-2f=-14 2d-3e+4f=-23 5d+4e-10f=-13
May 17, 2011 by Anonymous

Math
Help Solving These? There Are more like these , but i need examples to help me with the others. 1.5/2y+6 + 1/y-2=3/y+3 2. 3/3x-2 = 4/2x+1 3.5/3x - 1/9 = 1/x 4.2/x^2-x-12 -6/x+4 = 2/x-3
August 21, 2012 by Unknown

Math: Solving Trig Equation
9tan (x) - 9 sec^2 (x)/ tan (x)
March 31, 2013 by Kristi

Math
Need help solving this! Use the following information to find y: m=-3 (5,2) and (6,y)
November 24, 2013 by Anonymous

Math help
I need help on these problems. There over solving equations by factoring. 1.4x^2=8
March 5, 2014 by Anonymous

Chemistry
The boiling point of an aqueous solution is 102.16 C. What is the freezing point? Dr. Bob, If you happen to answer this question, I was the one that a question earlier about how to know what Kf constant to use [water vs benzene?] and i didn't notice that it was given in the ...
February 17, 2012 by Tracy

chemistry
Posted a question earlier but it was the wrong question. If anyone could help it would great if you could explain this would help also. Thanks ^ = subscript Calculate ke for(equlibrium concentration below problem 2CO^2(g) + heat 2CO(g) + O^2 [0.103] [0.024] [1.18 x 10^2]
January 5, 2010 by Shanta

Math - Alegbra 2
In a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a class? how many students ...
December 2, 2006 by AS

College Algebra
Problem: Use Common or Natural Logarithims to solve the exponential equations symboliclly. 2e^7x+4=4 (Round to four decimal places) I tried solving this way 2e/2^7x+4=4/2 e^7x+4=2 ln e^7x+4=ln 2 7x+4=ln 2 7x+4-4=ln 2-4 7x=ln 2-4 7x/7=ln 2-4/7 x=ln 2-4/7 then I at a lose at ...
November 14, 2010 by Lee

Math
Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). How do I solve this problem? I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I am lost after that This is a multiple choice question and I am not getting any of the choices a.) -161/...
October 12, 2008 by David

ICS
I need help solving this question. "Two charges are 10 meters apart. The charge on the positive particle is 1.0 C and the negative charge is 10 Coulombs. Calculate the magnitude of the electrostatic force of attraction between these two charges."
January 25, 2008 by william

urgent urgent algebra
find the composite function fog f(X) = 1/X-5,g(x)-6/x question 2 find inverse, domain range and asymatotes of each function f(x)=3+e^4-x can some one help me please been stuck on these for 2 days need help solving thank you
March 19, 2013 by zachary

Math
The question i'm having a problem with is the following: copy and complete: 3t-4 is a(n)_?expression and 5+13 is a(n)_? Expression. Do they mean a numerical expression?
September 5, 2013 by Dylan

algebra
Five (5) years ago, you bought a house for $171,000, with a down payment of $30,000, which meant you took out a loan for $141,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information: ...
February 22, 2013 by mary

Chemistry
I need to know if I am anywhere in solving this problem: Please tell me if this is correct. The pH of a solution: 0.20 M CH3COOH and 0.10 M CH3COONa pH=pKa+log{[CH3COONa]/[CH3COOH]} pH= -log(1.8x10-5)+log{0.10/0.20} pH= 4.74+log 0.50= 4.74-0.30= 4.44
May 6, 2010 by curtis

Physics
An umbrella with a diameter of 1 m turns 22 rev every 44 seconds. If it's 1.5 m from the ground, calculate the time it takes for a drop to reach the ground and the distance away from the umbrella a person should stand so as to not get wet. For this problem I made a = (0, -g) ...
November 9, 2012 by Leslie

Math help please last question
Solve the equation. 10. 2(4x -4) + 2(3x + 2) = 360 Can you please help me on this problem? Could you explain it please? I'm confused...
September 27, 2013 by Charlotte

Math
I need help with this problem: If N= {1,2,3,4,....}, A= {x/x=2n-1, n E N}, B={x/x=2n, n E N}, and C= {x/x+2n +1, n=0, or n E N}, find the simplest possible expression for each of the following: a. A U C b. A U B - the U stands for union c. A (intersects) I can't find the ...
September 17, 2006 by Avery

problem solving
place a counter on the left side,place a counter on the right side then color the middle cloud. What is a counter
September 29, 2011 by Jon

business math
Term of Loan/Date of Loan using Banker's Rule? I need helps in solving this question. I have to submit it by today.Tq On 4 Oct 2010, Alia paid $8200 for his loan of $8000 made on a certain date. If the simple interest rate was 5%, determine: a)the term of the loan b)the date ...
June 30, 2011 by Shadow of me

calc
let y=2x-8. What is the minimum value of the product xy? I'm not really sure how to do this... I tried taking x*(2x-8), and the min is 0. but then i wanted to see if it was the same when solving for x, and i got a min of -8. How do i do this problem? thanks, but i found which ...
May 1, 2007 by Mischa

physics
determine the tension in each cable below. draw a force diagram for the system before solving the problem. Case A- ball suspended on one cable Case B- ball suspended on by two cables
October 11, 2012 by Madison

college problem solving
a certain two-digit number is 6 less than the sum of its tens digit and 7 times its units digit. if the digits are reversed the number is increase by 27. fin the original two-digit numbers
November 24, 2013 by luckybee

mat115
Please help with this math problem. The directions are Add. Must show work. 4 2/7 + 1 5/7 I appreciate your help with this math problem. Thanks so much.
August 29, 2010 by adore001

Chemistry - Photons
Water is exposed to infrared radiation of wavelength 2.5×10−4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 2.5 g of water by 2.5 K? -------------------------- I tried solving this ...
December 4, 2012 by Amy

Chemistry - Photons
Water is exposed to infrared radiation of wavelength 2.5×10−4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons will be required to raise the temperature of 2.5 g of water by 2.5 K? -------------------------- I tried solving this ...
December 7, 2012 by Amy

Physics
I'm not sure how to go about solving this problem the algebra gets very messy... At what distance formt he EArth will a spacecraft on the way to the Moon experiance zero net force due to there two bodies because the Earth and Moon pull with equal and opposite force? THANKS
December 23, 2009 by Jake

Algebra
In 2004, about 233 million people in the US were aged 14 or older. They consumed, on average, 2.23 gallons of alcohol per person. Use scientific notation to estimate the total number of gallons of alcohol consumed by this age group. What is the formula for solving this problem?
March 12, 2012 by Anonymous

algebra 1b
Solve the problem by stating the equation you would use to solve and then solving it. After receiving discount of 12.5% on its bulk order of printer paper, johns office supply pays $3200 . what was the price of the order before the discount ? round to the nearest dollar. in
June 11, 2012 by Dee

maths
can you help me with this? cos2A=cossquareA-sinsquareA/cossquareA+sinsquareA=cossquareA(1-tansquareA)/cossquareA(1+tansquareA) I encountered this situation while solving trignometric problem.can you tell how does this come?
October 6, 2012 by help me out it's urgent

problem solving
Erica painted a picture of her dog. The picture has an area of 3600 cm square and is square. She has placed the picture in a frame that is 5 cm wide. What is the perimeter of the picture frame?
April 27, 2014 by Anonymous

4 grade math
i need help on this problem. make 36/9 into a false number sentence? please! help me to understand this math problem thank you for your kindness.
November 3, 2009 by samie

Math
Dear Reader, Can you help me with my math problem on my homework please? There is nobody at my house who can help me yet. So when you get the chance can you help me with my problem? Thanks for reading. From, Portia1214
March 8, 2012 by Portia

math
we are trying to help my son with his math and we are not sure how to do the problem and since his school has no books to send home to help us we came here the problem is 1/8x=1/4
February 20, 2014 by Angela

financial project
Five (5) years ago, you bought a house for $171,000, with a down payment of $30,000, which meant you took out a loan for $141,000. Your interest rate was 5.75% fixed. You would like to pay more on your loan. You check your bank statement and find the following information: ...
March 2, 2013 by Anonymous

math
I do not know how to answer this question. Would someone please help me with each of the four question below? Thank you. Question 1. Write the sample space for the outcomes of tossing three coins using H for heads and T for tails. Question 2. What is the probability for each ...
February 17, 2011 by Dave

Math
This is a continuation of a math problem I posted earlier. I'm a little confused by this question. From your equation, when during the day would the temperature be 30C? (2 marks) The equation I obtained was: T(t) = 5.9 sin( πt/12 + 7π/6 ) + 27 Any help would be ...
January 14, 2013 by Anonymous

Word Problem- Algebra
1. Multiply a number by 4, then multiply this product by 5, then you get 80 Whats the way to solve it, the equation. 2. Add 4 to a number, then subtract 5 from the sum, and you get 43 Whats the equation to solving that if anyone can answer either of those, that'd be great. 1. ...
January 20, 2007 by Sam

Algebra
I need a jump start in setting up the equations etc when solving for vertex, line of symmetry and deciding maximum/minimum This is the problem I am starting with f(x)= -2x^2+2x+8 We are looking for the vertex, line of symmetry and the max/minimum I cannot seem to get this ...
May 5, 2009 by deranged

life science , geography , history and math literecy
I am a grade 11 student and want to follow careers linked to geograpy . My problem is that most of the careers I am in interested in want pure math and im doing math literecy . My question is that , Is it possible for me to start mathematics in University so that I can follow ...
September 29, 2013 by felicia

history.
another question for "government is not the solution to our problem, Government is the problem" would the significance of this quote in illuminating a theme in US history be: that people shouldn't rely on the government? Sorry, I might have two more questions after.
August 28, 2010 by Amy~

chem
Hint: Remember that reactions happen in moles. So figure out the moles that reacted then use the molarity formula to continue solving the problem. What volume of 0.699 M K3PO4 is required to react with 68 mL of 0.661 MMgCl2 accord- ing to the equation 2K3PO4 + 3MgCl2 ! Mg3(PO4...
September 5, 2012 by John

Math
I have no idea how to understand quantitative comparison questions which involves the understanding of arithmetic mean. I need to understand the question first to do the problem, please explain. Thank you
May 12, 2009 by DANA

Trig
The problem is: an airplane is flying in the direction 120 degrees with an airspeed of 320 mph, and a 35 mph wind is blowing in the direction 60 degrees. The question ask to find the true course and the ground speed. To solve the problem I have done this: Flying 120sin 320_+...
June 2, 2014 by Morgan

math
1) Why should we clear fractions when solving linear equations and inequalities? Demonstrate how this is done with an example. Why should we clear decimals when solving linear equations and inequalities? Demonstrate how this is done with an example.
March 21, 2012 by jess

Math
I need help with solving this equation and the steps on how to do it? 5X-9-19+22X-38X=-17+17X-9+12
August 23, 2007 by Tiffany

math/algebra
I need help solving the solution sets for linear inequalities: 1.3x-y<=6 x>=1 y<=3
September 12, 2007 by jaysgyrl

math-solving for X
solve for x: 1. x = (m/n)x + 2 2. x = [2/x] - [2/(2x+1)] = 1/(x+1) I don't understand how to properly isolate X to get the value of x...please help!
September 22, 2007 by anonymous

Math(solving a quadratic by factoring)
These simple ones kill me: 16y^2=49 Thanks
March 4, 2008 by Nick

Math
Not really understanding solving the formual for the indicated variable. Solve for b2 h/2(b1+b2)
August 28, 2008 by Adrianna

math
What are the first few steps to solving this system by the substitution method? xy=3 x^2+y^2=10
November 9, 2008 by RiRi

math
I need help solving this subtraction (xy-ab-3)- (xy-9ab-1) the answe is __ab-___
May 8, 2009 by shelly

Math
I am having probles with solving systems of equations by graphing please help!! y=4+2/3x 2x=3y
May 13, 2009 by Gaby

MATH 157
When solving this linear equation, -8.3 = X + 6.1 don't I take 6.1 from both sides and get x = 2.2?
September 20, 2009 by ggift

math
I'm doing solving quadratic equations.I need help with couple of problems. k(k+5)=0,4r^2=100
April 7, 2010 by lauren

Math !!!!ASAP!!!!!
What are the rules and strategies when solving multi step equation????
December 27, 2010 by pkd

Math
(Factoring a sum or difference of cubes) and (solving a polynomial equation). 2x^3+2=0
January 31, 2011 by Mike

Math
Solving systems of equations with three variables? What is the solution to the system? 1] x+y+z=-3 2] 3y-z=4 3] 2x-y-2z=-5
May 30, 2011 by Kori

math puzzle
how would you go about solving this ive tryed everything. 2*2+7*3+4*3+3+4+3*2=?
June 5, 2011 by Fran

Math
How to graph: x(x+3)^2 I understand its a cubic function. Anyone care to help me with solving and graphing it? thanks.
November 21, 2011 by John

Math help
I need help on these problems. There over solving equations by factoring. Don't get it at all. 1. (Y+5)(Y-7)=0 2. 2n(n-20)=0 3. (2t-3)(3t-2)=0 4. (2u+7)(3u-1)=0
March 4, 2014 by Anonymous

Math
When solving A system by graphing how can you tell if the solution is the equation of the line
February 16, 2014 by Taylor

Math
When solving a system algebrically how can you tell if solution is the equation of the line
February 17, 2014 by Taylor

math
Solving inequalities by multiplying or dividing (-y/6)<2 y___21 1. < 2. > please answer the y ? 21 1 or 2 and how to do it
March 6, 2014 by thomas

math
For the graph y find both x-intercepts by solving the equation 3x^2 - 24x + 45 =0
March 8, 2014 by Max

PROBLEM SOLVING IN MATHEMATICS
The Andersons are buying a new home. They need to fence the yard because they have a dog. The yard is 72 ft. by 120 ft. Each fencing section is 8 ft. How many sections will they need? How many posts will they need? (a post is needed at the end of each section). What else will ...
October 22, 2011 by alya

problem solving
Suppose water flows from a shower at a rate of 0.38 cubic feet per minute. Do you use more water by taking a 14-minute shower or by filling a bathtub with 0.6 cub yards of water, and by how much? Demonstrate strep-by-step solution.
December 8, 2012 by ben

math,correction
Can someone correct these for me plz... Problem#6 Factor. x(x-5)-2(x-5) My answer is: (x-2)(x-5) Problem#7 Factor completely. x^2-x-6 My answer is: (x+2)(x-3) Problem#8 Factor completely. 35x^2+40x+5 My answer is: (7x+1)(5x+5) Problem #9 Factor by grouping. x^3-5x^2+2x-10 MY ...
February 28, 2007 by jas20

math/117
Explain three rules for exponents listed in the chart on p. 239 (Section 4.2). Do not explain the first two definitions listed in the table (Exponent of 1 or 0). Create an expression for your classmates to solve that uses scientific notation and at least one of the rules for ...
November 15, 2011 by Anonymous

English
1. However brilliant she is, she won't be able to solve this math problem. 2. However brilliant she may be, she won't be able to solve this math problem. 3. No mater how brilliant she is, she won't be able to solve this math problem. 4. No matter how brilliant she may be, she ...
March 2, 2011 by rfvv

precalculus HELP!
I posted this question before: What is the area enclosed by the graph of the absolute value(3x)+ the absolute value(4y)=12 I tried solving for y and got: y=4-x when I graphed this, I got a linear equation graph...I am wondering if I am supposed to find the area of triangle by ...
December 4, 2006 by sara

Social Psychology
Could some one please help me with this assignment. I am really confused about this. Here is what I have to do: Write 200 to 300 words applying critical thinking to determine whether an internal or external locus of control is more effective in various life situations. The ...
February 13, 2011 by Mandy

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members