# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 35165: We need to Write the equation. Arnold had \$1.70 in dimes and quarters. He had 3 more dimes than quarters. How many of each coin did he have? We know the solution but we can't figure the equation to get there. We figured you have to convert the dimes and quarters to their dollar value but we still can't get the actual equation. Please help. Click here to see answer by checkley71(8403)

 Question 35182: Demonstrate that 2+6i is a solution to the equation x^2-40x+40=0 Click here to see answer by venugopalramana(3286)

 Question 35152: 15m-9-6m=9 I need someone to show me step by step how to work out this problem Click here to see answer by mathdumb(3)

 Question 28610: The sum of the squares of three consecutive, positive integers is equal to the sum of the squares of the next two integers. Find the five integers. Click here to see answer by narayaba(40)

 Question 35435: Can you please help me solve this problem? I would greatly appreciate your help! Find each sum or difference, and show all work. y + 5/ y - 5 - 2y/ y^2 - 25 Thank you! Click here to see answer by rapaljer(4667)

 Question 35434: Can you please help me solve this problem? I would greatly appreciate your help! Find each sum or difference, and show all work. 2a/ 2a + 5 - 5/ 2a + 5 Thank you! Click here to see answer by rapaljer(4667)

 Question 35433: Can you please help me solve this problem? I would greatly appreciate your help! Find each sum or difference, and show all work. 3t + 2/ t - 2 + t + 2/ t^2 - 4 Thanks! Click here to see answer by rapaljer(4667)

 Question 35383: Here what the used was only the symbol of pi but I don't know how to write that using the keyboard so I wrote the actual word "pi." Classify the given number as real and rational, real and irrational, or complex. pi Click here to see answer by Nate(3500)

 Question 35382: Classify the given number as real and rational, real and irrational, or complex. (80) ^ 1/5 Click here to see answer by stanbon(57969)

 Question 35379: Classify the given number as real and rational, real and irrational, or complex. 1/9 Click here to see answer by rapaljer(4667)

 Question 35381: Classify the given number as real and rational, real and irrational, or complex. (16) ^ 1/4 Click here to see answer by rapaljer(4667)

 Question 35377: Classify the given number as real and rational, real and irrational, or complex. i^2 Click here to see answer by rapaljer(4667)

 Question 35538: Hello! My college professor told me the answer to this problem. The answer is: x + y/ x - y. I do not know how to work the problem, and I need to know! The problem is 1/x + 1/y/ 1/y - 1/x. Please simplify the expression, and show all work. Thank you very much for the help! Click here to see answer by elima(1433)

 Question 35564: find h when A=70, B=8, and b=6 A=1/2h(B+b) 70=1/2h(8+6) Click here to see answer by prabhjyot(164)

 Question 35540: Solve the equation and state any extraneous solutions. Thanks so much! 5x/ x + 1 + 1/ x = 5 Click here to see answer by stanbon(57969)

 Question 35539: Solve the equation and atate any extraneous solutions. Thanks! 2y/ y - 4 - 3/ 5 = 3 Click here to see answer by rapaljer(4667)

 Question 35635: find the x- intercept of the line 5x-2y=10 Click here to see answer by rapaljer(4667)

 Question 35634: find the slope of a line through the points (-2,-1) and (4,2) Click here to see answer by elima(1433)

 Question 35668: Could someone help me with this. For which system or systems of equations is (2,3)the solution? A. y = x+1 and y = -x+5 B. y = 2x - 1 and y = 1/2x +2 C. y = 3x - 3 and y = -2x + 7 D. y = 1/4x + 5/2 and y = -3x +3 Click here to see answer by benni1013(197)

 Question 35622: I know equations but I have no idea how to solve word problems of equations. Please help me! The admission fee at a small fair is \$1.50 for children and \$4.00 for adults. On a certain day, 2200 people enter the fair and \$5050 is collected. How many children and how many adults attended? Click here to see answer by Earlsdon(6294)

 Question 35901: How do I do this? The slope of a line is -2. Through which pairs of points could the line pass? 1.(0,3)and(-2,7) 2.(0,-1)and(2,-5) 3.(0,0)and(3,6) 4.(2,-3)and(-1,3) answers are: A.)1 and 2 only B.)1,2,and 3 only c.)1,2,and 4 only D.)3 only Click here to see answer by Prithwis(166)

 Question 35943: Problem is I=PRT and I need to solve for "r" can anyone help me in describing how I do this? Click here to see answer by rapaljer(4667)

 Question 35954: I need help. Here is the problem I have to solve. Gina is paid 1.5 times normal hourly pay for each she works over 40 hours in a week. Last week she worked 48 hours and earned \$634.40. What is her normal hourly rate? Please help me. Click here to see answer by checkley71(8403)

 Question 35917: 3x-y=21 2x+y=4 Describe a first step for solving each system using elimination. then solve each system. Click here to see answer by tran3209(100)

 Question 35920: Describe a first step for solving each system using elimination. Then solve each system. 2x-y=6 -3x+4y=1 Click here to see answer by checkley71(8403)

 Question 35918: Describe a first step for solving each system using elimination. Then solve each system. 3x+4y=-10 5x-2y=18 Click here to see answer by checkley71(8403)

 Question 35967: They are asking me to describe a first step for solving each system using elimination. Then solve each system. 3x-y=21 2x+y=4 3x+4=-10 5x-2y=18 2x-y=6 -3x+4y=1 x-y=12 x+y=22 Click here to see answer by checkley71(8403)

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