# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 339020: A computer can execute 64 instructions per microsecond. How many instructions can it execute in 10 minutes? I need help formulating the equation please. I am stuck and have no idea what else to do. Click here to see answer by josmiceli(9681)

 Question 339092: What are the step to solving this problem because I have the answer for a, which are 7, -3, but cannot seem to get started. I have tried using the quadratic equation formula without any sucess. I am competely stuck here. Someone please help. (a-2)^2=25 Click here to see answer by Alan3354(30993)

 Question 339126: A bank offers two checking plans. The Anywhere plan charges 25 centers per check. The AccuCheck plan costs \$1.30 a month, plus 15 cents per check. For what number of checks will the accucheck plan cost less than the Anywhere plan? Click here to see answer by rfer(12660)

 Question 339160: Question #1 9x=9y convert this rectangular equation to a polar equation Question #2 r=1 convert this polar equation to a rectangular equation Please help me understand how to make these two conversions. Thanks so much! Click here to see answer by user_dude2008(1861)

 Question 339407: Can u show me how to do 3h = -42 Click here to see answer by nyc_function(2733)

 Question 339427: If the tens digit x and the unit digit y of a positive integer n are reversed, the resulting integer 9 is more than n, what is y in terms of x? (A)10-x (B)9-x (C)x+9 (D)x-1 (E)x+1 The answer is E, x+1 but I am not getting it. Could you please explain. Thanks Click here to see answer by Edwin McCravy(8909)

 Question 339469: 12. Erica has \$460 in 5-and 10-dollar bills only. If she has fewer 10-than 5-dollar bills, what is the least possible number of 5-dollar bills she could have? (A) 32 (B) 30 (C) 29 (D) 28 (E) 27 Please explain the above problem. Would really appreciate. Thanks Click here to see answer by jrfrunner(365)
 Question 339469: 12. Erica has \$460 in 5-and 10-dollar bills only. If she has fewer 10-than 5-dollar bills, what is the least possible number of 5-dollar bills she could have? (A) 32 (B) 30 (C) 29 (D) 28 (E) 27 Please explain the above problem. Would really appreciate. Thanks Click here to see answer by josmiceli(9681)

 Question 339581: how do you solve this ?: 5/6X - 1/3 = 5/12 I tried solving it and got down to the final step but i am stuck , i got; 5X = 9/2 to get a variable X alone wouldn't you divide each side by 5 ? but you can't divide 9/2 by 5 ? can you ?..... Click here to see answer by rfer(12660)

 Question 339593: If a ring costs a jeweler \$170, at what price should it be sold to yield a profit of 50% on the selling price? The answer is not 255 which is what I figured it to be 170 + 170(.50)=255 Click here to see answer by rfer(12660)

 Question 339658: How do you solve: 8.1 + 3.8h - 5.6h = -7.2 Click here to see answer by jim_thompson5910(28595)

 Question 339667: How do you solve: 2/5c + 4 -1/5c = -9 Click here to see answer by stanbon(57361)

 Question 339666: How do you solve: 8.1 + 3.8h - 5.6h = -7.2 Click here to see answer by stanbon(57361)

 Question 339736: x/a-x=b I'm not sure how to do this problem. Click here to see answer by Fombitz(13828)

 Question 339783: A side of beef lost 35 percent of its weight in processing. If the side of beef weighed 546 pounds after processing, how many pounds did it weigh before processing? (A) 191 (B) 355 (C) 737 (D) 840 (E) 1560 Could you please explain the above problem. Thanks Click here to see answer by edjones(7569)

 Question 339853: If I have a part of a house that measures 17'x21.6', the total house is 2162 sq feet. what percentage is that part to the entire house? Click here to see answer by solver91311(16897)

 Question 339862: IF b and c are positive numbers and 1/b = b/c = c/8 then b+c = ?? (A)4 (B)6 (C)7 (D)8 (E)9 Could you explain the above problem. Thanks Click here to see answer by solver91311(16897)

 Question 339857: d=x/x-w i don't understand this problem and x-w is over x not x/x Thanks Click here to see answer by solver91311(16897)

 Question 339505: A______I_________S_______c point AI is x+5 point IS is 5x+6 point SC is 7 what is the lenght from A to C in terms of X? Simplify to most reduced form. 5xsquared -x+7x-8xsquared Click here to see answer by Fombitz(13828)

 Question 339832: If b and c are positive numbers and 1/b = b/c = c/8 then b+c = (A)4 (B)6 (C)7 (D)8 (E)9 Could please help me with the above problem Thanks Click here to see answer by jim_thompson5910(28595)
 Question 339832: If b and c are positive numbers and 1/b = b/c = c/8 then b+c = (A)4 (B)6 (C)7 (D)8 (E)9 Could please help me with the above problem Thanks Click here to see answer by Edwin McCravy(8909)