Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 338327: 2x + 7(x-3)= 6
Click here to see answer by jim_thompson5910(28595)

Question 339017: y = -2/3x - 12
Click here to see answer by jim_thompson5910(28595)

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 339150: find the real solutions to this equation:(x+3)^2+9(x+3)+14=0
Click here to see answer by jim_thompson5910(28595)

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 339161: -4(2-3x)=7-2(x-3)
Click here to see answer by jim_thompson5910(28595)

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 339171: x-9/4=x/7
Click here to see answer by Alan3354(30993)

Question 339188: 4x/3 - 5/6 = x/2 - 10
Click here to see answer by jim_thompson5910(28595)

Question 339194: (10x^3y^5)^-3
Click here to see answer by jim_thompson5910(28595)

Question 339237: What is the polynomial for x(28x+12)
Click here to see answer by rfer(12660)

Question 339232: 8X+2[5-(x-3)]
Click here to see answer by rfer(12660)

Question 339285: R(b+c)=bc
Click here to see answer by Alan3354(30993)

Question 339396: 6u+5(u+3)=4 solve for u
Click here to see answer by nyc_function(2733)

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

Question 339391: v=lwh solve for w
Click here to see answer by nyc_function(2733)

Question 339431: -4x+5=37 help solving
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 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 339575: solve the equation:
10(1-2y)=-5(2y-1)
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 339041: 3+1(x-24)=462
Click here to see answer by nyc_function(2733)

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

Question 339787: Could someone please help me solve the following?
Solve for X:
9x-2>3x+22
Thank you!
Click here to see answer by edjones(7569)

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 339824: 8/y^2 + 2/y^2 =
Click here to see answer by Fombitz(13828)

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 339863: 1/3x²=1/x+1/x²
Click here to see answer by Jk22(389)

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 339170: 5/y+1/3=1/3y
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 339151: 5Z-6
---- <8
8
Click here to see answer by Fombitz(13828)

Question 340000: 2x+14=6-4x
Click here to see answer by jim_thompson5910(28595)

Question 340022: the model M = -0.711+206.6 is used to determine the maximum heart rate of M of and individual who is age A
solve for A
according to this model what is the age of and individual whose maximum heart rate is 155
simpliy all answers
Click here to see answer by nerdybill(6959)

Question 340074: what is the answer when trying to solve for a in the problem x=-b/2a
Click here to see answer by rfer(12660)

Question 340142: -3x+34=-7(2x+4)-4
Click here to see answer by rfer(12660)

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