Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 111136: 8d - (-7c - 2d)
Click here to see answer by HyperBrain(694)

Question 109332: 2/3y-1=2/5
Click here to see answer by HyperBrain(694)

Question 111425: Solve the formula T = 1/4 s x for the variable s choose the correct answer.
The answer I chose was s = T/4x
Click here to see answer by jim_thompson5910(28595)

Question 111434: Determine which two equations represent parallel lines.
(a) y = 9x – 9 (b) y = –9x + 9 (c) y = 9x + 4 (d) y = x – 9

Click here to see answer by jim_thompson5910(28595)

Question 111439: Solve the system by substitution.
x – 3y = 14
–3x + 5y = –14

Click here to see answer by jim_thompson5910(28595)

Question 111438: The sum of two numbers is 42. Their difference is 6. What are the two numbers?
Click here to see answer by jim_thompson5910(28595)

Question 111438: The sum of two numbers is 42. Their difference is 6. What are the two numbers?
Click here to see answer by edjones(7569)

Question 111437: Solve the system by addition.
4x + 6y = 9
8x – 3y = –7

Click here to see answer by jim_thompson5910(28595)

Question 111436: Given f(x) = x2 + 3x – 3, find f(0).
Click here to see answer by jim_thompson5910(28595)

Question 111492: Find the area of a triangle with a base of 4.25 centimeters and a height of 9.5cm
Click here to see answer by checkley71(8403)

Question 111524: I need to understand how to break this question:
Two thirds of a number reduced by 11 is equal to 4 more than the number. Find that number. I need to know how to break this problem in order to solve it.
question 2:
Also, I need help with this question:
Five times the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number. What is the number?
question 3: 1/2 (6-Z)=Z
Question 4: 2 (a-8)=7=5(a+2)-3a-19.
Thank you for in advance.
Click here to see answer by checkley71(8403)

Question 111530: Find the product or quotient.
34. 2 8/9 x (-3 2/7)
Any help with this equation would be Greatly appreciated.
Click here to see answer by stanbon(57361)

Question 111532: Find the product or equation
-13/16 divided by (-7/24)
Any help with equation would be Greatly appreciated.
Click here to see answer by stanbon(57361)

Question 111534: Find the product or quotient
38. 1 3/8 divided by 2 5/11
Any help with this equation would be Greatly appreciated
Click here to see answer by checkley71(8403)

Question 111526: Find the product or quotient.
31. -4/5 x 3/4
Any help with this equation would be GREATLY appreciated.
Click here to see answer by checkley71(8403)

Question 111537: Solve the equation
44. 4/9x = 6
Any help with this equation would be Greatly appreciated.
Click here to see answer by brandonpark2889(31)

Question 111541: Solve the equation
47. -13/20p = -1/5
Any help with this equation would be Greatly appreciated.
Click here to see answer by checkley71(8403)

Question 111491: Evaulate the expression when x= -3/8 and y= 7/12.
28. y - x
Any help with this equation would be GREATLY appreciated.
Click here to see answer by brandonpark2889(31)

Question 111542: 2. The state fair is coming to town. Since you love the rides, you can’t wait to go. When you get to the ticket counter you notice three options for purchasing tickets.
Option 1: Pay one price at the gate for limitless riding…$25
Option 2: Pay $5 at the gate and then paying $0.75 for each ride you go on.
Option 3: Pay nothing at the gate and pay $1.25 for each ride.
Write general linear equations for each option that describe your cost (y) as a function of how many rides you go on (x)
(use y = mx + b form)
Also, if you knew ahead of time that you were going to experience 17 rides, which option would be cheapest?

Click here to see answer by solver91311(16897)

Question 111543: Find the equation of the line that passes through the points (-3.2, 8) and (14.7, -1).
Find the equation of the line that is parallel to the line in a) and passes through the origin.

Click here to see answer by solver91311(16897)

Question 111485: Find the sum or difference.
19.26/15n + (-8/15n)
Any help with this equation would be GREATLY appreciated.
Click here to see answer by elima(1433)

Question 111487: Evaulate the expression when x= -3/8 and y= 7/12.
26. x + y
Any help with this equation would be GREATLY appreciated.
Click here to see answer by elima(1433)

Question 111489: Evaulate the expression when x= -3/8 and y= 7/12.
27. x - y
Any help with this equation would be GREATLY appreciated.
Click here to see answer by elima(1433)

Question 111539: Solve the equation
-8/17v = 16
Any help with this equation would be Greatly appreciated.
Click here to see answer by elima(1433)

Question 111561: i am working equations for combining like terms and using the inverse operations to solve each equation for the variable. pls review this problem and adivse what is the best way to obtain the answer. pls show work.
6x+1+3x=19
Click here to see answer by edjones(7569)

Question 111556: Perimeter of a triangle. The perimeter of the triangle shown in the accompanying figures is 12 meters. Determine the values of x,x+1, and x +2 by solving the equation.
x+ (x+1) + (x+2) = 12

Click here to see answer by jim_thompson5910(28595)

Question 111558: Car Selling. Ronald wants to sell his car through a broker who charges a commission of 10% of the selling price. Ronald still owes $11,025 on the car. Ronald must get enough to at least pay off the loan. What is the range of the selling price?

Click here to see answer by stanbon(57361)

Question 111636: solve for a.
a-g/ag = L

a= -g/gL-1 Is this correct?
Click here to see answer by Fombitz(13828)

Question 111637: if 4 oz of candy has 200 cal. how many cal does 11 oz have?
I got 11 oz candy has 550 cal. Is this correct?
Click here to see answer by checkley71(8403)

Question 111635: h/2 - h/h-4= -4/h-4
answer is h does not = 4, h = 2. is this correct?
Click here to see answer by checkley71(8403)

Question 111634: 6/y^2 + 5/y
___________
12/y^2 - 5/y
my answer: 6+5y/12-5y Is it correct?

Click here to see answer by rapaljer(4667)

Question 111553: Finding MSRP. What was the MSRP for a Hummer H1 that sold for $107,272 after an 8% discount?
Click here to see answer by checkley71(8403)

Question 111651: Help please. The problem reads: 4/7p-6=2/7p+12. The chapter is titled solving multi-step equations. The answer the book gives is 63. Is that accurate? If so, can you show me the steps for getting this answer. If someone can help, thanks a lot!
Click here to see answer by MathLover1(6634)

Question 111658: A virus scanning program is checking every file for viruses.
It has completed checking 40% of the files in 300 seconds. How long should it take to check all the files?
Would this be 300 times the 40%? I am trying to do these problems I just want to make sur that I am doing them correctly.
Click here to see answer by gigi23(1)

Question 111657: A school had 900 students at the start of a school year. If there is
an enrollment increase of 7% by the beginning of the next year, what is the new
enrollment?
Would this be 900 x .07= 63 = 963?
Click here to see answer by BrittanyM(80)

Question 111531: Find the product or quotient
35. 5/6 divided by 1/3
Any help with this equation would Greatly appreciated.
Click here to see answer by BrittanyM(80)

Question 111665: Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary?
For this one would I just multiply 10.5 and 18500? Then add that amount to the 18500?
Click here to see answer by BrittanyM(80)

Question 111656: Ms. Jordan has been given a loan of $2,500 for 1 year. If
the interest charged is $275, what is the interest rate on the loan?
HELP, do I have to divide 2500 by 275? Then divide that by 60?
Click here to see answer by BrittanyM(80)

Question 111662: Gasoline accounts for 85% of the motor fuel consumed in the
United States every day. If 8,882 thousand barrels (bbl) of motor fuel is consumed each day, how much gasoline is consumed each day in the United States? Round to the nearest barrel.
Can someone kindly help me with this problem? Hope all have a good Holiday!!
Click here to see answer by BrittanyM(80)

Question 111675: Solve.
5x - 6 = 4x
Click here to see answer by edjones(7569)

Question 111684: Solve.
-8(10x-4)+10(8x-4)=x-9
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 111666: Yi Chen made a $6,400 investment at the beginning of a year. By the end of the year, the value of the investment had decreased by 8.2%. What was its value at the end of the year?
I do not no where to start with this one help please.
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 111555: Raising rabbits. Before Roland sold two female rabbits, half of his rabbits were female. After the sale, only one-third of his rabbits were female. If x represents his original number of rabbits, then
1/2x-2=1/3(x-2)

Click here to see answer by ptaylor(2048)

Question 111655: Estimate the amount in the problem.
What is 48.3% of 1,500?
I am so bad with percents can someone please help me with this problem?
Click here to see answer by checkley71(8403)

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