Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 1062968: I'm supposed to graph the function y=-3x in 2 ordered pairs. How do I this? Supposedly for the y intercept I tutrn x into 0 and vice versa,I don't know.
Click here to see answer by Alan3354(69443)

Question 1062999: The range of the function defined as y=5x is ?
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Question 1063124: The number of adults tickets sold, a, was eight times the number of child tickets sold, c,. Child tickets cost $2.50 each; adult tickets cost $5.00 each and last night's show brought in $850.
Click here to see answer by josgarithmetic(39617)

Question 1062208: Write the point slope form of the equation of the line that passes through the points (-8,2) and (1,-4)
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Question 1063175: problem 1: (-3, 1); 3x + 2y < -7
Problem 2: (4, 0); y < 3x - 10

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Question 1063177: problem 1: 9x � 3y > 18
problem 2: 1/3 x � 2/3 y > 2

Click here to see answer by Alan3354(69443)

Question 1063176: problem 1: y < 3x - 2
problem 2: y < -5x - 5

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Question 1063186: Graph and solve y<3x-2
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Question 1063185: Graph and solve y<-5x-5
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Question 1063210: A dozen cookies and a loaf of bread cost $6.70. Half a dozen cookies and 2 loaves of bread cost $6.20. A loaf of bread costs?
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Question 1063210: A dozen cookies and a loaf of bread cost $6.70. Half a dozen cookies and 2 loaves of bread cost $6.20. A loaf of bread costs?
Click here to see answer by josmiceli(19441)

Question 1063210: A dozen cookies and a loaf of bread cost $6.70. Half a dozen cookies and 2 loaves of bread cost $6.20. A loaf of bread costs?
Click here to see answer by Edwin McCravy(20056)

Question 1063472: How do you set up the following word problem to be solved?
Joe spent $7.75 to purchase 23 snacks for the club meeting. Chips are $0.25 and pretzels are $0.50. How many of each type of snack did Joe buy?

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Question 1063511: what expression is equal to 2/9
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Question 1063684: Solve the inequality and graph your solution. Make sure to show your work for credit!!

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Question 1063693: I went to my refrigerator for some lemonade
on a hot summer day. All I had was regular lemonade
and blue-raspberry lemonade. A blend sounds nice! The
regular lemonade is 20% lemon juice, and the blue-raspberry is
50% lemon juice. I want my combination lemonade to be100 mL of
30% lemon juice because that sounds just right!
Im comfused and i dont know what to do or what im supposed to find !!
Click here to see answer by Alan3354(69443)

Question 1063765: Jack & Jill charge $23 for a custom painted water pail. They currently sell 110 water pails a month. They estimate that for each $1 decrease in the cost of the pails, they could sell 10 more pails a month. What price will maximize Jack & Jill's income? If they charges this price, how much income should they expect?
Click here to see answer by josgarithmetic(39617)

Question 1063848: 3x-2y=-16
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Question 1063893: Dahlia walks from her house at 2 km/h. After school, she jogs back home at 6 km/h and saves 15 min. How far does Dahlia live from school?
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Question 1063933: ted left his home traveling at 40mph. His father left 2 hours later traveling in the same direction at 55mph.how many hours will it take his father to overtake ted
Click here to see answer by ikleyn(52782)

Question 1064021: equations are around us in everyday life , if you have $47 at a basketball game and you go to concession stand for hot dogs and hamburgers , and hotdogs are $3.50 and hamburgers $5.50 each . how many of each can you purchase?
Click here to see answer by ikleyn(52782)

Question 1064197: Find three consecutive even integers such that their sum decreased by the third integer is 82.
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Question 1064229: the band is selling t shirts to raise funds.They have 2 companies to choose from.A.B.shirts will charge them $7.50 and a setup fee of $22.50 for the design. Company C.D.shirts will cost them $8.25 With no fees.which t shrit company is giving a better deal ? Explain your answer.
Click here to see answer by jorel1380(3719)

Question 1064396: I need to solve the following by elimination:
3x+2y=-I1
x-2y=11
I get -5/2, 17/4). The correct answer is (3,-4). I don't understand how that answer was reached. Can you please show me how it is worked out.
Click here to see answer by Edwin McCravy(20056)

Question 1064398: I'm confused as to why I get two possible solutions to this question:
Which ordered pair is a solution of ?
A (0,2)
B (1,3)
C (2,3)
D (3,3)
The teacher said the answer is C. Why can't D be correct as well?

Click here to see answer by KMST(5328)

Question 1064422: Molly has a total of 32 points in her hockey league. One point is earned for an assist or goal. If she has three times as many assists as goals, write a system of linear equations to represent how many goals and assists she has.
Click here to see answer by Boreal(15235)

Question 1064424: The sum of Mary's age and twice Ann's age is 43. Twice Mary's age is 11 more than Ann's age. How old are they?
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Question 1064436: Which equation would make this system consistent and dependent?
2/3y=7x-1/2
A. 21x=y+3/2 B. 42x-4y=3
C. y = 21/2x-3/2 D. 21x=2y-3
When I put the equations in slope intercept form C comes out as my answer (having the same line). The book is telling me that the correct answer is B. Why is B the answer?
Click here to see answer by Boreal(15235)

Question 1064505: X-2y=2
Y=-2+5 how many solutions does this system have?
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Question 1064512: a 25% acid solution must be added to a 40% solution to get 240 liters of 30% solution. Howmany of each solution must be used?
Click here to see answer by josgarithmetic(39617)

Question 1063927: green grass inc charges a flat rate of 15 per hour for lawn service. their main competitor s and g lawn care charges an initial fee of 30 plus 10 per hour. find the break even point
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Question 1064821: you�go�to�the�store�and�buy�some�vegetables. carrots are $2 per bag and celery is $1.50 per bag. you spend $10. write a linear equation
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Question 1064839: Maximize f=x+5y subject to
3x+7y≠20
7x+4y≠44
Click here to see answer by Fombitz(32388)

Question 1064906: Please briefly explain in complete sentences whether or not it is possible for a consistent system of linear equations to have exactly two solutions. Please support your answer with examples. Thank you.

Click here to see answer by ikleyn(52782)

Question 1064688: You sell candles at a Fair. You collect $144 selling a total of 28candles. Selling price of small candle is $4 each and large candle Is $6 each. How many of each type of candles did you sell? Set-up two equations (system) and then solve it.

Click here to see answer by josgarithmetic(39617)

Question 1065033: Consider the following linear program:
Max 1A+2B
s.t
1A ≤5
1B≤5
2A+2B=12
A,B≥0
a.Show the feasible region
b.What are the extreme points of the feasible region?
c.Find the optimal solution using the graphical procedure.

Click here to see answer by Theo(13342)

Question 1065057: Hi, my name is Sierra. It says I have to solve the system of linear equations by graphing. The equations are 4x-4y=20, y=5. I am not sure how to solve, please at least give the the x and y of each with the slope. Thank you

Click here to see answer by addingup(3677)

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