Questions on Algebra: Systems of equations that are not linear answered by real tutors!

Tutors Answer Your Questions about Systems-of-equations (FREE)

Question 576686: Five more than 3 times a number is 41. What is the number?
Click here to see answer by rfer(12730)

Question 577326: If X*Y=42 and X+Y=17, what are the values of X & Y?
Thank you
Click here to see answer by richard1234(5390)

Question 578240: 4x+2y-2z=-18
5x+2y=3z=-18
x-2y-3z=-12

Click here to see answer by richwmiller(9144)

Question 578404: The sum of the digits of a two-digit number is 9. When the digits are reversed, the new number is 63 less than the original number. Find the number.
Click here to see answer by dfrazzetto(277)

Question 578829: Please help, I can only get halfway through the equation.
A piggy bank contains $5.45 in dimes and quarters. If the bank contains 29 coins, how many quarters are in the bank?
Click here to see answer by dfrazzetto(277)

Question 579459: 6x-3y=18, 6x+3y=-12 Using the Elimination Method, please show all work.
Click here to see answer by richwmiller(9144)

Question 579606: Write the equation of the line containing the points (-2,5) and (6,1).

a. Find the slope between the two points in simplest form

b. Substitute the slope into the equation along with one of the points listed above and solve the y-intercept

c. Rewrite the equation of the line with the slope and y-intercept
Those are my math question I need help with. Can you please help me?
Thank You, Karissa!!!
Click here to see answer by ankor@dixie-net.com(15746)

Question 580848: Please show me step by step how to do this
solve the systems of equations 2x - y = 6, x + 5 y = -19
My work thus far--I have done this, but not sure if it is right?
2x-2x-y=6-2x
y=6-2x
y-intercept is (0,6)
slope is -2
Now this is the part that does not come out? I dont know what i am doing wrong
SOMEONE PLEASE HELP ME!
x + 5 y = -19
Click here to see answer by bucky(2189)

Question 582311: X^2-x-x-x=8-4
Click here to see answer by mananth(12270)

Question 582843: -3x^3+54x=21x^2

Click here to see answer by mananth(12270)

Question 582863: 8/35x=-32/63
Click here to see answer by ankor@dixie-net.com(15746)

Question 583792: Give the slope of each line AND then determine whether the two lines are parallel, perpendicular, or neither.
5x+4y=12
20x+16y=0
Click here to see answer by dfrazzetto(277)

Question 583793: Find an equation of the line containing the given pair of points.
(-3,-8) and (-9,-5)
The equation of the line in slope-intercept form is y=
Click here to see answer by jim_thompson5910(28715)

Question 584077: 7/x + 7/4x = 1
Solver for x
Click here to see answer by Maths68(1474)

Question 584174: If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.x + 2y = 4 x – 5y = 11
Click here to see answer by stanbon(57967)

Question 584955: solution to algebra problem
n/2=n+1
please explain answer steps
Click here to see answer by Alan3354(31518)

Question 584955: solution to algebra problem
n/2=n+1
please explain answer steps
Click here to see answer by solver91311(17077)

Question 585418: Mary is twice as old as John was 3 years ago. In 5 years John will be 1 year older than Mary is now. Find the ages of both people today.
Click here to see answer by Schaman_Dempster(26)

Question 585932: {x+2y+3z=6, y+2z=0, z=2} solve by substitution
Click here to see answer by Alan3354(31518)

Question 585970: What is the equation of the line, in point-slope form, that passes through the points (-7, -10) and (-6, -8)?
Click here to see answer by jim_thompson5910(28715)

Question 585917: Which of the following systems is equivalent to the given system?
2/3x - y = 2
ans : 2x - 3y = 6
x + 1/2y = -3
ans : 2x +y = -6
A. 2x - 3y = 6 and 2x + y = 6
B. 6x - 3y = 6 and 2x + y = 10
C. 2x - 3y = 6 and 2x + y = -6
Click here to see answer by tebes(3)

Question 586261: The square of y varies inversely as x and directly as z. If y = 3 when x = 12 and z = 21, find y when x = 8 and z = 28.
Click here to see answer by scott8148(6628)

Question 587092: i need your help on y=5x+7 y=6x
Click here to see answer by xdragonfight(116)

Question 588025: 5x1-2x2+6x3=0
3x1+2x2+7x3=0
x1+x2+3x3=0
Click here to see answer by stanbon(57967)

Question 588055: solve by ellimination:
2x + y = 3
4x + 2y = 6
Click here to see answer by scott8148(6628)

Question 589284: Find an equation of the line. Write the equation using function notation through (-4,-8); parallel to 5x+4y=9
Click here to see answer by richwmiller(9144)

Question 590137: how to solve this by using substitution
y=2x
x+y=12

Click here to see answer by Alan3354(31518)

Question 590332: Help please!!
Find the equation of the line of best fit from the data in the table. Round the slope and the y-intercept to the nearest hundredth.
x 12 14 16 18 20
________________
y 54 53 55 54 56
Click here to see answer by Theo(3504)

Question 590896: write equation of line containing point (-2,4) and perpendicular to line 5x+2y=3
Click here to see answer by ad_alta(240)

Question 593742: Molly has a solar panel with a width of 26in. To get the proper inclination for her climate, she needs a right triangular support frame that has one leg twice as long as the other. To the nearest thenth of an inch, what dimensions should the frame have?
so right triangle a^2+b^2=c^2
2x^2+x^2=26^2
3x^2=676
(3x^2=676)/3
x^2=225
square root the whole thing
x=15 but when i check my work it doesn't add up so i know i must be doing it wrong
Click here to see answer by Alan3354(31518)

Question 594495: Please help me solve this equation by factoring .

Click here to see answer by richwmiller(9144)

Question 594529: How do you solve y=5x+11
y=-4x-7?
I've tried substitution and many other ways to solve the problem but it's complicated.
Click here to see answer by Alan3354(31518)

Question 594529: How do you solve y=5x+11
y=-4x-7?
I've tried substitution and many other ways to solve the problem but it's complicated.
Click here to see answer by jsmallt9(3296)

Question 594721: Define the variables and write the equation using the following word problem :
Martha is decorating her house. She spent a total of $48 on x plants (that cost $8 each) and y posters (that cost $12 each). When Martha gets home, she realizes that the number of posters she bought is one less than the number of plants. How many of each item did she buy?
Click here to see answer by richwmiller(9144)

Question 594824: determine whether the ordered pair is a solution of the system of equations. remember to use alphabetically ordered variables.
Click here to see answer by in_the_math_vortex(4)

Question 595177: solve 40/y=14-y
Click here to see answer by jim_thompson5910(28715)

Question 595621: Solve 856 = 4m.
Click here to see answer by rfer(12730)

Question 595780: the length of a rectangular flower garden in (x-7) and the width is (x+5). If the area is 28 sq meters, find the value of x.
Click here to see answer by llorton(14)

Question 596178: I need help solving for c. P=13ab/9c
thanks so much.
Click here to see answer by jim_thompson5910(28715)

Question 596197: I need help solving for M please.
M/3 -9.5=2.9B
Thanks so much!
Click here to see answer by Alan3354(31518)

Question 598973: 6+6=6x-1 SOLVE STEP BY STEP PLEASE
Click here to see answer by flame8855(424)

Question 599790: The formula F=(5/9)C+32 can be used to convert temperature in degrees Celsius, C, to degrees Fahrenheit, F. What formula gives the conversion from degrees Fahrenheit to degrees Celsius?
A. C=F-32-(5/9)
B. C=(5/9)(F-32)
C. C=(9/5)(F+32)
D. C=(9/5)(F-32)

Click here to see answer by Intelmnd(1)

Question 600200: how would i solve the equation z=wxy for b______(<-blank where answer goes)

Click here to see answer by solver91311(17077)

Question 600495: Evaluate:

| 0 0 7 0 |
| 2 1 -3 4 |
| 3 -2 2 5 |
|-1 5 2 2 |

Click here to see answer by Alan3354(31518)

Question 600898: May I ask a Question?
What is the equation for finding the point of intersection, given the equations of two lines that intersect?
Like: Find the point in which the lines y= x+4 and 3x+2y=13.
Thank you ma'am/sir.
Click here to see answer by Nihal@SriLanka(22)

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