# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 235649: What is the specific heat of liquid water in kilojoules / KG degrees celsius? How many kilojoules of heat are needed to raise the temperature of 10.00 KG of liquid water from 24.6 degrees celsius to 46.2 degrees celsius? Specific heat of water is 4.18 Joules per gram per degree centigrade Click here to see answer by Alan3354(30992)

 Question 235454: what is the anser ( don bought 18 yards of fabric for curtains.its takes 2 1/4 yards of fabric to make each curtain.How many curtains can Don make? Click here to see answer by till_the_end(2)

 Question 235675: Can you help me solve this equation? -4x - 6 = -42 Thank You Click here to see answer by solver91311(16872)

 Question 235854: A telephone box accepts only 20p coins or 50p coins. on one day 39 coins were collected with a total value of 11.40pounds. Find how many 50p coins were collected. This question is from the chapter "simultaneous equations" This question is extremely difficult for me that I am incapable of solving it. Therefore I request you to solve it as soon as possible. Click here to see answer by checkley77(12569)

 Question 235899: Kevin gets exercise on the weekend by working around the house. ON saturday he worked for 3 hour mowing the lawn and raking leaves. He burned 885 calories. Use the information below to write a system of equations that can be used to describe the amount of time Kevin Worked and the number of calories he burned by mowing and raking. Determin how much time kevin spent on mowing and on raking. Click here to see answer by stanbon(57274)

 Question 235912: I'm trying to remember how do to this particular problem: -11 less than equal to 3x - 4 less than equal to -3 Do I start out by adding 4 to both sides so it would be -11 -4 < x -4 -4 ? am I on the right track? Thanks for your help!! Click here to see answer by Earlsdon(6287)

 Question 235916: hello my name is anthony and who ever reponds back to this it would be great cuz i am have trouble with algerbra equations with varibles on each sides and so i am new at this and so if you could tell me the steps and explain to me the best way you can that would be great 5x-3-=3x+7 Click here to see answer by rfer(12654)

 Question 235953: Alex was asked to find the GCF of 45 and 75. He gave the answer as 5. Was he correct or incorrect? Why? Click here to see answer by Alan3354(30992)

 Question 235969: At a shooting range each shot costs 20c. If you hit the target you recieve 30c.Emma has 20 shots and makes a loss of 70c. How many hits did she get? This question is also from the chapter "Solving problems using simultaneous equations" I hope that someone answers my question.It would really be a great pleasure for me. Thanks for the help!!! Click here to see answer by solver91311(16872)

 Question 235940: solving systems of equations. solve the system: y=5-3x and 3x+7y=15 Click here to see answer by checkley77(12569)

 Question 235939: solving systems of equations. Solve the system: 2x+y=1 and 5x-y=20. Click here to see answer by checkley77(12569)

 Question 236080: A:B is 5:9 B:C is 3:8 What is A:B:C Click here to see answer by JimboP1977(308)

 Question 236136: what is the product of 2 1/4 and 5 1/6? Click here to see answer by Alan3354(30992)

 Question 236206: Hi i really need help with this math equation 2x +8y = 2 I'm not really sure how to do it. Thanks -Drea Click here to see answer by jim_thompson5910(28536)

 Question 235814: can you help me factor this problem x^3+9x^2-22x Click here to see answer by Alan3354(30992)

 Question 236203: a race-boat covers a distance of 66 km downstream in 110 mintures. it covers this distance upstreams in 120 minutes. the speed of the boat in still water is 34.5 km/hr.find the speed of the steam this quest is related to this problem http://www.algebra.com/algebra/homework/coordinate/Linear-systems.faq.question.102734.html i do not no which type this algebra is the textbook says (equations in one variable) if any mod can move this in right place pls do so Click here to see answer by stanbon(57274)

 Question 236395: what is negative 3 over 5 multiplied by a number equal to 30 Click here to see answer by Theo(3458)
 Question 236395: what is negative 3 over 5 multiplied by a number equal to 30 Click here to see answer by checkley77(12569)

 Question 236399: LCD to determine which fraction is greater. 5 12 , 7 11 Click here to see answer by stanbon(57274)