# Questions on Algebra: Systems of Linear Equations answered by real tutors!

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 Linear Solvers Practice Answers archive Word Problems Lessons In depth

 Question 399868: My teacher is a bad math teacher so I don't get this. Question: Traveling upstream on the Missouri River, a barge travels 35 mi in 7 h. Downstream, it travels the same distance in half the time. What is the rate of the barge in still water and the rate of the current. Please use the variable r[rate of barge in still water] and c[rate of current] Could you please do the 4 steps process. If you do not know what the four step process is..it's 1st: let statement 2nd: equation 3rd: solve 4th: Writing the answer in a complete sentence. Thank you Click here to see answer by stanbon(57982)
 Question 399868: My teacher is a bad math teacher so I don't get this. Question: Traveling upstream on the Missouri River, a barge travels 35 mi in 7 h. Downstream, it travels the same distance in half the time. What is the rate of the barge in still water and the rate of the current. Please use the variable r[rate of barge in still water] and c[rate of current] Could you please do the 4 steps process. If you do not know what the four step process is..it's 1st: let statement 2nd: equation 3rd: solve 4th: Writing the answer in a complete sentence. Thank you Click here to see answer by mananth(12270)

 Question 399882: A duck can fly 1800 m in 10 min with the wind. Against the wind, it can fly only 2/3 of this distance in 10 min. How fast can the duck fly in still air? What is the rate of the wind. **PLEASE USE THE VARIABLES R for rate duck speed in still air and C for rate of wind. IF YOU DO NOT..I WILL GET CONFUSED SINCE I AM USING THOSE AND ONLY THOSE VARIABLES. Click here to see answer by mananth(12270)

 Question 400010: I am attempting to solve system of linear equations through elimination. I have an entire list of them due but if you can help me promptly with this one, I should be able to use it as a guide with the others. Thank you in advance. 2x-y+z=1 x+y-7=2 3x-y+z=0 Click here to see answer by Edwin McCravy(8999)
 Question 400010: I am attempting to solve system of linear equations through elimination. I have an entire list of them due but if you can help me promptly with this one, I should be able to use it as a guide with the others. Thank you in advance. 2x-y+z=1 x+y-7=2 3x-y+z=0 Click here to see answer by ewatrrr(10682)
 Question 400010: I am attempting to solve system of linear equations through elimination. I have an entire list of them due but if you can help me promptly with this one, I should be able to use it as a guide with the others. Thank you in advance. 2x-y+z=1 x+y-7=2 3x-y+z=0 Click here to see answer by stanbon(57982)

 Question 400485: In 4 years time, a father will be 3 times as old as his son. 6 years ago he was 7 times as old as his son. How old are they now? Click here to see answer by scott8148(6628)

 Question 400484: If the larger of 2 nos. is divided by the smaller. The quotient and the remainder are 2 each. If 5 times the smaller no. is divided by the larger no. the quotient and the remainder are still 2 each. Find the two nos.? Click here to see answer by edjones(7569)

 Question 400602: if 1 pound is \$1.50 then how many pounds will make \$22.50 Click here to see answer by josmiceli(9817)
 Question 400602: if 1 pound is \$1.50 then how many pounds will make \$22.50 Click here to see answer by rfer(12730)

 Question 400600: Can you explain to me how to solve a problem like this. y=3x+2;9< x <3 i just need it explained on how to solve a problem similar to the one above. Thank You Click here to see answer by stanbon(57982)

 Question 400801: How many solutions does the following system have: 6x - 3y = 9 2x - y = 3 Explain how to determine the number of solutions without solving the system. Then apply elimination, and interpret the resulting equation. Click here to see answer by checkley79(3056)

 Question 400980: where can i find a solver for system of equations by substitution method? Click here to see answer by rapaljer(4667)

 Question 401094: 4x-y=7 2x+4y=-10 is this: infinete solution one solution two solution no solution? Click here to see answer by richard1234(5390)

 Question 400641: line 1: y= -1/4(x) -1 line 2: x+4y=-4 Is this system of the equation a) consistent independent b) consistnt dependent c) inconsistent This means the system has a) a unique solution (_ , _) b) infinitly many solutions c) no solutions' Click here to see answer by robertb(4012)

 Question 401487: Which is the solution to this pair of linear equations? 5y-2x=6 3x-2y=13 Click here to see answer by MathLover1(6813)

 Question 401592: Solve and check the following systems by substitution. (7x – 2y = 1) (4x + 5y = 2) Click here to see answer by mananth(12270)

 Question 401954: the width of a rectangle is 4 feet less then the lenght. the area is 5ft sqaured whats the legth and width ? Click here to see answer by richard1234(5390)

 Question 402088: can you show the following equations step by step and provide an answer (solving systems of equations by graphing) : Click here to see answer by mananth(12270)

 Question 402244: I need to graph the equation using the slope and y-intercept y=10/3x+4 Click here to see answer by rfer(12730)

 Question 402243: I need to find the domain of the function g(x)= __4__ 9-7x Click here to see answer by solver91311(17077)

 Question 402387: How would you graph a linear equation when the slope, Y- intercept, and x- value are all given but the y- value is not? Click here to see answer by rfer(12730)

 Question 402440: I need to graph the following equation and indentify the y-intercept y+x=-7 Thank you Click here to see answer by rfer(12730)

 Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _? Click here to see answer by mananth(12270)
 Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _? Click here to see answer by robertb(4012)
 Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _? Click here to see answer by richard1234(5390)

 Question 402805: May you help me with this problem: 9m-3n=20 3m+6n=2 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by stanbon(57982)

 Question 402808: May you help me with this problem: 3b+2c=46 5c+b=11 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by stanbon(57982)

 Question 402819: May you help me with this problem: 6x+2y=5 8x+2y=3 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402821: May you help me with this problem: 3j+5k=19 j-2k=-1 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402825: May you help me with this problem: 2p-q=2 2p+3q=22 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402823: May you help me with this problem: 3x+7y=6 2x+9y=4 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402820: May you help me with this problem: 5y-20=-4x 4y=-20x+16 The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402816: May you help me with this problem: 5s+8t=70 60=5s-8t The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

 Question 402815: May you help me with this problem: 2v=150-u 2u=150-v The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time. Click here to see answer by Alan3354(31537)

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