Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 176488: 8-P=-12-3P
Click here to see answer by Mathtut(3670)

Question 176484:
Click here to see answer by Mathtut(3670)

Question 176680: 3(x+1)-5=3x-2
Click here to see answer by Mathtut(3670)

Question 176690: Please help me solve this equation:
Thanks

Click here to see answer by solver91311(16897)

Question 176729: Maggie makes a $9.25 purchase at a bookstore in Reno with a $20 bill. The store has no bills and gives her the change in quarters and fifty-cent pieces. There are 30 coins in all. How many of each kind are there?

please help me! thank you!!
Click here to see answer by solver91311(16897)

Question 176744: why is 3 to the zero power equals 1?
Click here to see answer by Mathtut(3670)

Question 176744: why is 3 to the zero power equals 1?
Click here to see answer by MathTherapy(1425)

Question 176768: Hi,
Suppose y varies directly with x. Write an equation relating x and y.
y = -6 when x = -2
Thank you,
Andy 7th grade (8th grade math)
Click here to see answer by stanbon(57361)

Question 176781: Mia's motorboat took 3 hours to make a trip downstream with a 6 mph current. the return trip against the came current took 5 hours. find the speed of the boat.

please help me thank you!
Click here to see answer by stanbon(57361)

Question 176782: Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350 lb mixture that is 12% protein.

Thanks for your help!
Click here to see answer by Mathtut(3670)

Question 176798: y=3x+2 when x=-2
Click here to see answer by Mathtut(3670)

Question 176851: s=2b+ph
solve for h when b is area of base; p is perimeter of base; h is height of prism.
Thanks in advance.
Click here to see answer by Alan3354(30993)

Question 176804: 1. Nine years ago,the sum of Carlo's age and Ronald's is greater than 28.
Carlo is 6 years older than Ronald. How old is Ronald now?
2. Group the pairs of terms having a common monomial factor.

3. Determine the common monomial factors.
Click here to see answer by Edwin McCravy(8909)

Question 176884: I am struggling with factoring quadratics, would you please help solve the equations
Mary
Click here to see answer by Mathtut(3670)

Question 176917: Two lines have the following equations.

2x+y = 4
3y = 2x - 12

At what point do these lines intersect?

please help thanks!!
Click here to see answer by stanbon(57361)

Question 176917: Two lines have the following equations.

2x+y = 4
3y = 2x - 12

At what point do these lines intersect?

please help thanks!!
Click here to see answer by Alan3354(30993)

Question 176939: I need help with this problem to.
The number on three raffle tickets are consecutive integers who sum is 7503. Find the integers.
Click here to see answer by ankor@dixie-net.com(15656)

Question 176970: NUMBER THEORY: Four times the sum of 3 consecutive intergers is 48.
A. Write an equation that could be used to find the intergers
B. What are the intergers.
Click here to see answer by checkley75(3666)

Question 176968: What is the slope of the line that passes through the points (3,2) and (1,7)?

please help thanks!
Click here to see answer by checkley75(3666)

Question 176973: 8-3(x-4)=4
Click here to see answer by checkley75(3666)

Question 176965: S-3 over 7 = S+5 over 9
Click here to see answer by Earlsdon(6287)

Question 177009: 3y^2 + y - 5 = 0 How do you solve this?
Click here to see answer by Fombitz(13828)

Question 177016: I am struggling with this problem, I want to understand the steps so that I can work the problem on my own.
s=vt+1/2at^2
Click here to see answer by rapaljer(4667)

Question 177036: x-4/2 - 1/4 = 6x-1/20 I am having so much trouble with this problem. My answer is 7 but it doesn't work with the problem. Thanks for the help.

Click here to see answer by jim_thompson5910(28595)

Question 177070: please help me solve this quadratic equation in vertex form.
y=x^2+12x-4
thank you very much
Click here to see answer by nerdybill(6961)

Question 176888: Solve the following equation for p
2/(5x)-4=7/(1-p)
Click here to see answer by ankor@dixie-net.com(15656)

Question 177079: I'm trying to help my granddaughter. I'm stumped
p-4/9p = -7/9
Click here to see answer by nerdybill(6961)

Question 177087: I need help with this problem property of equality can someone please show me how to solve this problem please.
7r/12=-14
thank you
Click here to see answer by stanbon(57361)

Question 177087: I need help with this problem property of equality can someone please show me how to solve this problem please.
7r/12=-14
thank you
Click here to see answer by jim_thompson5910(28595)

Question 177095: can someone please help me solve this problem please
2(2x - 7) - 5 = 4(3x -6) + 9

Click here to see answer by jim_thompson5910(28595)

Question 177090: (5x2 + 7y - 6z2), (4y + 3x2), (2y - 2x2) all my problem says to do is add. I cant remember how to do this
Click here to see answer by checkley75(3666)

Question 177108: Could you please confirm that I have configured the following formula for the length of an organ pipe correctly:
Given formula F = v/4(l + c ) where F is frequency, v is velocity of sound, l is pipe length and c is an end correction. Is it correct to say:
l + c = v/4f, that is is the correction is added to the length of the pipe or subtracted?

Click here to see answer by stanbon(57361)

Question 177143: Thank you very much for the answer
Now i have another question
can you explain me the process of how this ended up given (25/28)d + 9 = d
I have the following
d/6+d/12+d/7+5+d/2+4=d I do get where the 9 comes from, but i tried to add that up by using LCD and it did not give 25/28.
Please can you explain me the process...
Thanks as always
Click here to see answer by jim_thompson5910(28595)

Question 177197: A graduate student in chemistry needs 172 liters of a 41% saline solution. How many liters of an 18% saline solution must be mixed with a 61% saline solutionto obtain the required new solution?
Click here to see answer by stanbon(57361)

Question 177241: Good afternoon dear tutor
how do i go from
3W=2L+3
to (2/3)L+1
what happened to the 3 please explain thanks
Click here to see answer by jim_thompson5910(28595)

Question 177238: Solve and check. Begin by rewriting the equation without the fraction.
2x/3-5=7. I have no idea how to change the fraction 2x/3 and then to solve the equation. After solving it how do I put the answer back in to check it?
Click here to see answer by jim_thompson5910(28595)

Question 177255: Good afternoon
I have 1/x + 1/1.25x = 1/5
I guess i'm confused why can i multiply through by 5x in order to get
5+5/1.25=x
Could you please explain the process and also offer some tips when dealing with fraction. Thanks a lot
Click here to see answer by jim_thompson5910(28595)

Question 177282: Please help me with:
0.4x -0.15 = 0.65 -0.3(6-2x)
(I multiplied by 100 to get the answer {-5} but it doesn't check.)
Click here to see answer by jim_thompson5910(28595)

Question 177283: Thank you as always, based on this problem i got another question

How did you get that LCD was 6.25? Was it by multiplying 1, 1.25, and 5?
based on the equation 1/x + 1/1.25x = 1/5
Please explain the process .. Thanks as always.
Click here to see answer by stanbon(57361)

Question 177302: how to write a mathematical statement for the given verbal ststement
four less than the quotient of nine and n
eight more than the cube of a
the sum of a and b times the square of e
Click here to see answer by checkley75(3666)

Question 177318: -22=7L-8
I got l=-12

Click here to see answer by jim_thompson5910(28595)

Question 177343: This is a question in a Finance course I am tutoring, but it has me stumped.
If A=D+E and D/A= 0.70, solve for A/E. What am I missing? Thanks.
Click here to see answer by Fombitz(13828)

Question 177357: the formula S= n(n+1)over 2 can be used to find the sum of the first n natural numbers find the sum of the first 100 natural numbers
Click here to see answer by gonzo(654)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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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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