# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 100386: Is 7 a solution of the equation 4x-2=3x+5? Click here to see answer by jim_thompson5910(28598)

 Question 100419: I don't understand how to solve this equation: (2a^2b^3)^2 Click here to see answer by edjones(7569)
 Question 100419: I don't understand how to solve this equation: (2a^2b^3)^2 Click here to see answer by stanbon(57422)

 Question 100422: an electrician can install the electric wires in a house in 14 hours.a second electrician requires 18 hours. how long would it take both electricians, working together, to install the wires? Click here to see answer by edjones(7569)

 Question 100434: I'm having trouble this this equation. (6x^2)^2 (3x^2y)^3 so far i have (36x^4) (27x^5y^4) I'm not sure if I'm on the right track. Click here to see answer by checkley71(8403)

 Question 100445: Mr. Fairbanks invested half of his money in land, a tenth in stock, and a twentieth in bonds. He put the remaining \$35,000in a savings account. What is the total amount of money that Mr. Fairbanks saved or invested? Click here to see answer by checkley71(8403)

 Question 100446: A company buys a copier for \$10,000. The vaule of the copier is \$10,000(1-n/20) after n years. After how many years will the value of the copier be in \$65,000? Click here to see answer by edjones(7569)

 Question 100515: Denise's cell phone plan is \$29.95 per month plus \$.10 per minute for each minute over 300 minutes of call time. Denise's cell phone bill is \$99.95 For how many minutes was she billed. Click here to see answer by 303795(595)

 Question 100545: separate the number 78 into three parts so that the second part is twice the first part and the third part is 6 more than the first part Click here to see answer by stanbon(57422)
 Question 100545: separate the number 78 into three parts so that the second part is twice the first part and the third part is 6 more than the first part Click here to see answer by Earlsdon(6290)

 Question 100549: Betty is .20 her mother's age. Thier combined ages are 30. How old is betty? Click here to see answer by checkley71(8403)

 Question 100650: I don't understand this one: (-23)(-3) do I multiply the 2 negative numbers? Click here to see answer by checkley71(8403)
 Question 100650: I don't understand this one: (-23)(-3) do I multiply the 2 negative numbers? Click here to see answer by stanbon(57422)

 Question 100705: Martina leaves home at 9 A.M., bicycling at a rate of 24 mi/h. Two hours later, John leaves, driving at the rate of 48 mi/h. At what time will John catch up with Martina? Click here to see answer by checkley71(8403)

 Question 100706: There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of \$300 for each Douglas fir and \$225 for each ponderosa pine. If the company paid \$217,500 for the trees, how many of each kind did the company buy? Click here to see answer by checkley71(8403)

 Question 100703: The length of a rectangular playing field is 5 feet less than twice its width. If the perimeter of the playing field is 230 feet, find the length and width of the field. Let W = the width of the rectangle and L=length Click here to see answer by elima(1433)

 Question 100730: Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 Click here to see answer by checkley71(8403)
 Question 100730: Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 Click here to see answer by stanbon(57422)
 Question 100730: Write the equation of the line L satisfying the given geometric conditions. L has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 Click here to see answer by jim_thompson5910(28598)

 Question 100726: Translate the following statement into an inequality. Let x represent the number. The cost for a long-distance telephone call is \$0.36 for the first minute and \$0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding \$3. Click here to see answer by checkley71(8403)
 Question 100726: Translate the following statement into an inequality. Let x represent the number. The cost for a long-distance telephone call is \$0.36 for the first minute and \$0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding \$3. Click here to see answer by oberobic(2304)

 Question 100725: A bus leaves a station at 1 P.M., traveling west at an average rate of 44 mi/h. One hour later a second bus leaves the same station, traveling east at a rate of 48 mi/h. At what time will the two buses be 274 mi apart? Click here to see answer by checkley71(8403)

 Question 100737: I am trying to help my son with Equations, but I don't know how my self. Can you help?> x+2x+5=x+19 Click here to see answer by checkley71(8403)
 Question 100737: I am trying to help my son with Equations, but I don't know how my self. Can you help?> x+2x+5=x+19 Click here to see answer by stanbon(57422)

 Question 100739: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (2,-3)and (2, 4) Click here to see answer by jim_thompson5910(28598)
 Question 100739: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (2,-3)and (2, 4) Click here to see answer by checkley71(8403)

 Question 100721: A bicyclist rode into the country for 5 hours. In returning, her speed was 5 miles per hour faster and the trip took 4 hours. What was her speed each way? Click here to see answer by oberobic(2304)

 Question 100749: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible. Rewrite in standard form. (0,5)m=-3/5 Click here to see answer by josmiceli(9697)