Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 490908: one half my age is 10 years more than one third my age. How old am I?
Click here to see answer by algebrahouse.com(1079)

Question 490943: given the formula, show for the indicated variable.
x= w+y+z/5 for y
Click here to see answer by MathLover1(6625)

Question 491000: how do you write m=(n^3)/(p^2) as a logarithmic expression?

Click here to see answer by Alan3354(30993)

Question 491002: Hello, I really need help with this, if someone could help me please?

The area of a rectangular athletic field is represented by the expression 4y^2-9z^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include correct units with your solution.
Click here to see answer by MathLover1(6625)

Question 491036: please help me solve this equation:12-(x+1)=3+x
Click here to see answer by stanbon(57290)

Question 491041: simplify first or move variables all to one side. please show steps to solving the equation
5/4x-3/4=5/6x+1/2 *please help me I cant seem to get the right solution thank you!
Click here to see answer by stanbon(57290)

Question 490930: Hi,
This is pretty basic, but I have forgotten my algebra.
I wish to substitute in ohm's law formulae to find soultions for power.
given. E=IR and P=EI
In an electrical circuit only P and R are known. Solve for E and Solve for I.
I know the answers are E=√PR and I=√P/R but I don't remember how to solve for them.
Click here to see answer by ankor@dixie-net.com(15646)

Question 491128: Please help me solve:
4x - 5y = 7
8x -10y = 7
Thank you
Click here to see answer by jorel1380(2518)

Question 491129: How do you write integral denominators, and get the solution.
1/x+x/1.5=7/3
Click here to see answer by jorel1380(2518)

Question 491173: can you please help with this question
4y^2 = 600
a) + or - 12.2 b) + or - 1.22 c) -1.22 only d) 12.2 only
if you could show all work that would be great.

Click here to see answer by mananth(12270)

Question 491211: Solve by completing the square...
1. x^2-6x+8=0
2. x^2+5x+6=0
Click here to see answer by Maths68(1474)

Question 491359: if X^2 (the 2 is negative here)=16,what is the value X^2
Click here to see answer by ptth176(50)

Question 491536: Completely factor the following expression:
9y2 – 16z2
Click here to see answer by Gogonati(809)

Question 491536: Completely factor the following expression:
9y2 – 16z2
Click here to see answer by rfer(12655)

Question 491534: Can someone help?
Factor the following expression into a product of two binomials:
64x^2-64x+16
Click here to see answer by rfer(12655)

Question 491534: Can someone help?
Factor the following expression into a product of two binomials:
64x^2-64x+16
Click here to see answer by Gogonati(809)

Question 491540: Need help please.....

Completely factor the expression
343x3 – 98x2y + 7xy2
Click here to see answer by stanbon(57290)

Question 491530: Factor out the greatest common factor from the expression
-36m2n3 – 60mn4 + 18m4n2
Click here to see answer by rfer(12655)

Question 491473: How do you differentiate whether to turn a negative sign into a positive or keeping it the same. For example 12c + 9b - (6c - 7b). It comes out to 6c+16b how do you get +16b?
Click here to see answer by rfer(12655)

Question 491550: What does this equal 4(y+6)+9
Click here to see answer by rfer(12655)

Question 491610: two buses leave Houston at the same time and travel in opposite directions. One bus averages 55 mph and the other bus averages 45mph. When will they be 400 mi apart?
Click here to see answer by oberobic(2304)

Question 491642: a piece of lumber which is 55 inches long is cut into two parts such that 2 times the larger part will be 12 more than 5 times the smaller part. How large are each of the pieces of lumber?
Click here to see answer by ptaylor(2048)

Question 491748: solve the following equation for m
u=m-4n/6
Click here to see answer by MathLover1(6625)

Question 491760: solve and check.
-t/4=8
Click here to see answer by rfer(12655)

Question 491760: solve and check.
-t/4=8
Click here to see answer by MathLover1(6625)

Question 491752: What are the steps for solving for x in 1-10/(9x)=3/4 ?
Click here to see answer by rfer(12655)

Question 491751: -34=v+42-5v
Click here to see answer by rfer(12655)

Question 491589: 5+3(10-2)+1 =17 My moms says its incorrect and the answer is 30,But she doesnt know how to show me step by step....can you help
Click here to see answer by ankor@dixie-net.com(15646)

Question 492080: please help with me on this equation: t/3=8
Click here to see answer by stanbon(57290)

Question 492116: Hello, I really need some help...
Factor out the greatest common factor from the expression
14yz3 + 28xy2z – 7y2z2
Click here to see answer by Theo(3458)

Question 492175: Find two consecutive odd integers where 4 less than twice the smaller is the same value three times the number that is one more than the larger.
Click here to see answer by chessace(471)

Question 492202: Please help me !! The second angle of a triangle is three times the first and the third is 5 degrees more than twice the first. Find the measures of all the angles.
Click here to see answer by chessace(471)

Question 492198: Help Please !
The hortizontal sides of a rectangle are one half of the length of the sides of a separate square. the vertical sides of the rectangle are 4 cm more than three times the side of a square. if the perimeter of the rectangle is twice the perimeter of the square what are the dimensions of the rectangle?
Click here to see answer by chessace(471)

Question 492183: Find three consecutive odd integers such that 9 times the first is the same as the sum of 3 times the second and 4 times the third.
Click here to see answer by chessace(471)

Question 492208: please help me solve this equation
solve for y. provide the answer as a fraction if it is not a whole number.
1/8(16y+8)-17=-1/4(8y-16)
Click here to see answer by lwsshak3(6490)

Question 492368: the area of triangle with base, b and height h, is given by:
A =1/2bh
if the area of a certain triangle is 38 square centimeters and the base is 8 centimeters, what is the height? please show all of your work.
Click here to see answer by stanbon(57290)

Question 492397: Please graph y= 2/3 x -1
label the x and y axes and draw a line
Click here to see answer by stanbon(57290)

Question 492400: 2/7j-1/7=3/14
Click here to see answer by deborabr(181)

Question 492278: Hi,im having problems with sloving equations with word problems.heres an example of one.A farmer is testing the strength of his new mule.The farmer wants to know how many boughs of hay the mule can pull,along with the cart and the farmer on board.The farmer knows that the mule can only pull 1000 pounds at one time.If the farmer wieghs 160 pounds,the cart wieghs 80 pounds,and each bough of hay wiegh 65 pounds,how many boughs can the mule pull with the cart and farmer on board??? please answer back asap im extremlyy confused. >.<
Click here to see answer by ankor@dixie-net.com(15646)

Question 492020: when 4 is added to a number and the result divided by 5,the final result is 44 less than the original number. Find the number ?
Click here to see answer by ankor@dixie-net.com(15646)

Question 492674: I need help solving this equation
-16+6+(-14)+(-20)
i have kind of figured out to
-10+(-14)+(-20)
=-24+-20
-10+-4=
and that is where i am stuck
PLEASE help!!!
Click here to see answer by richard1234(5390)

Question 492850: The local movie theater sold 100 tickets for $780. If children's tickets cost $6 and adult tickets $12, how many of each were sold?
Click here to see answer by Maths68(1474)

Question 492911: solve the following equation.
10/3x=-50
Click here to see answer by MathLover1(6625)

Question 492914: solve. show all of your work.
-17-x=-2(3x+1)

Click here to see answer by MathLover1(6625)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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