# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 307174: (a + b)^2 = 25; (a - b)^2 = 45, then a^2 + b^2 = ? Click here to see answer by Fombitz(13828)
 Question 307174: (a + b)^2 = 25; (a - b)^2 = 45, then a^2 + b^2 = ? Click here to see answer by solver91311(16877)

 Question 307216: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a \$35 one-time activation fee and charges 7 cents a minute. The second plan has no activation fee and charges 12 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal? Click here to see answer by mananth(12270)

 Question 307404: You are filling your gas tank using this equation C(g)=3.03(g) does 3.03 repesent cost per gallon? Click here to see answer by rapaljer(4667)

 Question 307409: y=0.15+0.79 represents the cost of gasoline each year, the line 0.11x-y=-0.85 estimates the cost of gasoline in Janurary of each year. Would the lines be parallel or perpendicular and explain. Click here to see answer by rapaljer(4667)
 Question 307409: y=0.15+0.79 represents the cost of gasoline each year, the line 0.11x-y=-0.85 estimates the cost of gasoline in Janurary of each year. Would the lines be parallel or perpendicular and explain. Click here to see answer by jollypgred(3)

 Question 307471: what is an equation of a vertical line that passes through the point (5,-6) Click here to see answer by rapaljer(4667)

 Question 307400: An open box is to be made from a square piece of material by cutting 2 cm squares from each corner and turning up the sides. The volume of the finished box is to be 200 cubic centimeters. Find the size of the original piece of material. Click here to see answer by scott8148(6628)

 Question 307527: the price of regular unleaded gasoline in Jan. 1997 was 1.26 and in Jan. 2006 it was 2.31 using the coordinates 1997, 1.26 and 2006,2.31 what are the steps to find the slope or rate of exchange between the two points. Please explain how to find this. Click here to see answer by Earlsdon(6287)

 Question 307524: this equation y=0.15x+0.79 represnts an estimate of the average cost of gasoline each year, how would you find the price of gasoline in the year 2018. Please show me how to find the answer. Click here to see answer by checkley77(12569)

 Question 307703: 2x + 3/2y + 3z = 6 . It wants me to find the intercepts.. How do i do this? Click here to see answer by Alan3354(30993)

 Question 307805: If the perimiter of a rectange is 30m and the length is 3m more than twice the width what are the dimensions? Length and width. I think the length is 12 and the width is 3 Click here to see answer by mananth(12270)

 Question 307924: Use the 5-step problem-solving process. The sum of 3 consecutive integers is 423. Find the integers. Click here to see answer by nyc_function(2733)

 Question 308263: What kind of Equation is 16x^-16y^=64 and why? Click here to see answer by nyc_function(2733)

 Question 308292: How do I solve this equation for the value of x? 14/x + (7x – 5) / (x + 2) = 7 Click here to see answer by mananth(12270)

 Question 308290: How do I solve this equation for the value of x? (3x - 5) / 7 = (3x + 5) / 5 Click here to see answer by mananth(12270)

 Question 308286: I don't understand how to simplify this problem. (x/y – y/x) / ( 1/y – 1/x) Click here to see answer by mananth(12270)

 Question 308401: I am really stuck on this one! I got -1y to the 3rd power and that doesn't make since. Please Help!!! :) Simplify: 8-12y^3 _______ 4 Click here to see answer by Fombitz(13828)

 Question 308409: what is the answer to this equation? 3 /(x – 3) + 5 /(x + 4) = (5x + 6)/(x^2 + x - 12) Click here to see answer by checkley77(12569)

 Question 308398: The sum of two consecutive odd address numbers on a street is 9044. What are the two address numbers? You must construct an algebra equation to solve this Click here to see answer by checkley77(12569)

 Question 308387: jim works for \$15.50 per hr for a health care facility. he is suppose to get a 75 cent per hr raise at one year of service. what will his percent increase in hourly pay be Click here to see answer by rfer(12657)

 Question 308509: A family of four drinks 8 gallons of milk in 4 weeks, how many more gallons of milk will the family drink in 12 weeks?*** Click here to see answer by rapaljer(4667)
 Question 308509: A family of four drinks 8 gallons of milk in 4 weeks, how many more gallons of milk will the family drink in 12 weeks?*** Click here to see answer by mananth(12270)

 Question 308529: cream has approximately 22% of butterfat.how many gallons of cream must be mixed with 2% milk to give 20 gallons of milk containing 4% of butterfat Click here to see answer by stanbon(57332)
 Question 308529: cream has approximately 22% of butterfat.how many gallons of cream must be mixed with 2% milk to give 20 gallons of milk containing 4% of butterfat Click here to see answer by mananth(12270)

 Question 308468: How do I add this fraction together? (2x + 7) / ( x - 7) - (2x - 7) / (x + 7) Click here to see answer by mananth(12270)

 Question 308482: Write in slope-intercept form the equation of the line that is parallel to the line y = -4x + 1 and passes through the point (2,-1). Click here to see answer by Fombitz(13828)

 Question 308469: How do I simplify this problem? (x/y – y/x) / ( 1/y – 1/x) Click here to see answer by Fombitz(13828)

 Question 308597: I need help adding the following fraction. y / (x2 - xy) - x / (y2 – xy) Click here to see answer by rapaljer(4667)

 Question 308599: I need help adding the following fraction. (2x + 7) / ( x - 7) - (2x - 7) / (x + 7) Click here to see answer by mananth(12270)

 Question 308638: Hello, Can this question be solved as an expression? 2081a +4012b if a=4044, b=8022 Click here to see answer by rapaljer(4667)
 Question 308638: Hello, Can this question be solved as an expression? 2081a +4012b if a=4044, b=8022 Click here to see answer by ichudov(499)

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