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

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

Question 128236:
-6(q+22)=5q
Click here to see answer by checkley71(8403)

Question 128238:
Click here to see answer by oscargut(2103)

Question 128657: ok this one I really do not understand becuase they do not give me a value for x or anything.
Part A) Calculate the value of the discriminant of x^2+x+3=0
Part B) by examining teh sign of the discriminant in part a, how many x-intercepts would the graph of y = x^2+x+3 have? Why?
I know that to get the discrimant the equation is b^2 - 4ac, and that if the discriminant is positive the the solutions will be real numbers, and if it is a negative you will have two complex solutions. but how do I solve this if I do not know what the value of b is or the value of A and C
Click here to see answer by jim_thompson5910(35256)

Question 128655: If f(x)=2x^2 -7x+3 find
Part A f(2)

Part B f(-3)
I have tried to solve this by plugging the 2 in for x and for part A came up with -3 and for part B came up with 42. am I doing this correctly
Click here to see answer by jim_thompson5910(35256)

Question 128619: simplify the following
y+3x-7+2x-y
6d+7c-4c+6
5f+9+2d-7-f
Expand the following
3(x+4)
4(2m+3)
expand and simplify 3(x+4)+2(x+5)
4(d-1)+5(d+6)
4(w+5)+3(w-1)
thank you
Click here to see answer by durbz25(1)

Question 128698:
I need assistance on solving systems of equations in three variables, by elimation. The question is 2x-y+Z=5 6X+3Y-2Z=10 X-2Y+3Z=5. I'm not sure how to begin this, I know you need to elimate a variable. Can I lines the first and second equation and elimate the y variable? thanks
Click here to see answer by checkley71(8403)

Question 128618: simplify the following
y+3x-7+2x-y
6d+7c-4c+6
5f+9+2d-7-f
Expand the following
3(x+4)
4(2m+3)
expand and simplify 3(x+4)+2(x+5)
4(d-1)+5(d+6)
4(w+5)+3(w-1)
thank you
Click here to see answer by apachemexican1(64)

Question 129672: A chemist mixed a 20% acid solution with a 60% acid solution to make 10 L of a 30% solution. How many liters of the 60% solution were used?
Click here to see answer by stanbon(75887)

Question 129670: Express 8% as a fraction in lowest terms.
Click here to see answer by checkley71(8403)

Question 129994: a 10 pound mixture of peanuts and cashews sells for $5.32 per pound. the price of peanuts is $3.60 per pound and the price of cashews is $7.90 per pound. how many pounds of each type are in the mixture?
Click here to see answer by checkley71(8403)

Question 129993: a 10 pound mixture of peanuts and cashews sells for $5.32 per pound. the price of peanuts is $3.60 per pound and the price of cashews is $7.90 per pound. how many pounds of each type are in the mixture?
Click here to see answer by checkley71(8403)

Question 129992: You are ordering softballs for 2 softball leagues. The size of a softball is measured by its circumference. The pony league uses an 11-inch softball priced at $3.50. The junior league uses a 12-inch softball priced at $4.00. The bill smeared in the rain but you know the total was 80 softballs for $305.How many of each size did you order?
Click here to see answer by checkley71(8403)

Question 129988: One day a movie theatre collected $4275 from 675 people. The price of admission for adults is $7 and a child admission is $5.How many adults and how many children were admitted to the theatre that day?
Click here to see answer by checkley71(8403)

Question 130005: A store is selling Compact Discs (CDs)for $10.50 and $8.50. You buy 10 cds for $93. How many cds bought at each price?
Click here to see answer by pythagorean thereom smartie(2)

Question 129962: Sketch the graph of the solution set of the system of inequalities below
{-3 {y<1} this one is y is greater than or equal to 1 Ididn't know how to
input that
Click here to see answer by pythagorean thereom smartie(2)

Question 128955: okay this problem says to solve by completing the square, but the odd numbers are throwing me off, and this problem is not to be graphed, so no problem on here really helped me, the problem is:

1x(1x)+11x-6=0
any help on how to solve it would be greatly appreciated, this is for a college algebra course
Click here to see answer by solver91311(24713)

Question 130316: How Do i Solve THe following Equation?
Translate to a system of equations and solve.
A collection of nickels and dimes totals $22.40. There are
304 coins in all. How many nickels are there.
Click here to see answer by solver91311(24713)

Question 130313: x=2y+4
y=2x-8
Click here to see answer by scott8148(6628)

Question 130349: Can You please help me solve the following equations step by step?
13)The sum of two numbers is 248. Their difference is 64. Find the numbers.
14)Two cars leave town at the same time traveling in opposite directions. One travels 51 mi/h and the other travels 45mi/h. In how many hours will they be 432 miles apart?

Click here to see answer by scott8148(6628)

Question 130819: i don't understand how to solve problems where it says consistent and inconsistent systems.
for example it says: Solve each system algebraically. Identify each system as consistent and dependent, consistent and independent, or inconsistent.
2f+3g=11
f-g=-7
i mostly don't undestand the differences between consistent dependent, consistent independent, or inconsistent, but this problem confuses me.
Click here to see answer by jim_thompson5910(35256)

Question 130881: An airplane flew for 5 hours with a tail wine of 25 kph. The return flight against the same wind took 5.5 hours. Find the speed of the airplane in still air.
Click here to see answer by checkley71(8403)

Question 130880: Tow cars leave town at the same time going in the same direction. One travels 55 mpb and the other travels 48mph. In how many hours will they be 49 miles apart?
Click here to see answer by checkley71(8403)

Question 130879: Colored copies cost $.10 per copy and white copies cost $.5 per copy. Sandy made 400 copies, some of which were colored and the rest white. Her total bill was $22.50. How many colored copies and how many white copies did she make?
Click here to see answer by checkley71(8403)

Question 131034: marie is going to celebrate her 18th birthday with a big party which will be held in a banquet hall. she has narrowed her location choices to two banquets halls. betty's banquet hall charges $2,000 for the hall and $35 per dinner guest. marco's banquet hall charges $1,400 for the hall and $45 per dinner guest. both places are very nice but marie wants to save as much money as possible. make and use tables,graphs,and equations to help marie deside on the best place to have her party
Click here to see answer by checkley71(8403)

Question 131634: x +2y=6
Click here to see answer by jim_thompson5910(35256)

Question 131972: 2x+y=16
3x-y=4
I need to solve for x and y
Click here to see answer by stanbon(75887)

Question 132046: A horse travels 20 mi/h faster than a cat. The horse traveled 25 miles in the time it took the cat to travel 5 miles. Find the speeds of both animals.
Thank you!
Click here to see answer by checkley71(8403)

Question 132430: how do you rewrite an equation in functional notation, from a word problem.
such as if the relation can be represented by the equation IR=12 rewrite the equation in functional notation so that the resistance R is a function of the current I.
Click here to see answer by solver91311(24713)

Question 132456: I am looking for someone who can help with statistics???
Anyone? I used this site for Algebra and it was so fantastic. I really need help with Stats.
Click here to see answer by stanbon(75887)

Question 132918: (-3,-2),(5,4)
Click here to see answer by jim_thompson5910(35256)

Question 133055: Hello please try to solve my question
A bus travels at 36 km\h and arrives at its destination half an hour late. If it travels at 42 km/h, it arrives at the same distination half an hour earlier. Find the journey's distance.
Click here to see answer by oscargut(2103)

Question 133859: 4 oranges and 5 apples cost 3.56 three oranges and 4 apples cost 2.76 find the cost of a oranges and the cost of a apple
Click here to see answer by checkley71(8403)

Question 134042: #1) three times the width of a certain rectangle exceeds twice its lenght by three inches, and four times its length is twelve more than its perimeter. Find the dimensions of the rectangle.
#2) The larger of the 2 intergers is 5/2 the smaller. If twice the smaller is subtracted from twice the larger, the difference is 12. Find the two numbers.
#3) The tens digit of a two digit number is two more than the ones digit. The number is thirty more than four times the sum of the digit. What is the number?

could u please solve thesse problems give your equations and an explanation of how you got it.
Click here to see answer by solver91311(24713)

Question 134517: i don't understand how to graph a compound inequality on a number line
for example:h<1 and h>-5
_____________________
-6-5-4-3-2-1 0 1 2 3 4 5 6
Click here to see answer by stanbon(75887)

Question 134526: 5/3x+1/3x=5x+14/3+5/3x
WHat is the solution for x?
THank you
Click here to see answer by jojo14344(1513)

Question 134548: A paper strip is ripped in half and the halves are stacked on each other; the stack is then ripped in half and the resulting halves stacked on each other; and so on. The equation 2.5=0.0005(2)^x can be solved to determine how many rips must be made (starting with the strip and then continuing with stacks) to make a stack 2.5 cm high, given a paper strip is 0.005cm thick. Determine how many rips must be made by solving the equation 2.5=0.005(2)^x graphically using your calculator. Sketch and write the equation(s) if the graph(s) you used to arrive at the solution.
Click here to see answer by stanbon(75887)

Question 134935: I need help with the following question. The problem needs to be solved using subsitution. The answer that I got does not agree with the answer in the book.
y=x^2
x^2+y^2=1
Click here to see answer by vleith(2983)

Question 135043: solve for y:

-2y^2 + 7y = -15
Click here to see answer by checkley77(12844)

Question 135228: solve systems of equations of numbers 1 to 10 by the addition or substraction
3x+2y=5
9x-2y=15
Click here to see answer by Earlsdon(6294)

Question 135700: Hello, this is the problem: The sum of two numbers is 4 less than twice the larger. If the larger is decreased by three times the smaller, the result is -20.
Thank you

Click here to see answer by vleith(2983)

Question 136234: I am trying to come up with an algebra proportion using X for the problem of solving a MPG question if I have 50 gallons of gas and my car gets 35 MPG
Click here to see answer by stanbon(75887)

Question 136566: I need some help, Please! I don't know where to begin to solve this. Thank You.
The sum of three numbers is 4. The first, minus the second, plus 4 times the third, is -9. The third, plus 5 times the first, plus the second, is 24. What are the numbers?
Click here to see answer by stanbon(75887)

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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400