Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 136902: BOBS POPCORN DELIGHT SHOP HAS TWO TYPES OF POPCORN. BUTTER POPCORN SELLS FOR 3.99 FOR A 12OZ BAG AND NON BUTTER POPCORN SELLS FOR 2.99 A 12 0Z BAG. HOW MANY BAGS OF EACH DOES BOB NEED TO MIX TO GET 50 12 OZ BAG TO PRODUCE A MIXTURE OF BOTH POPCORNS THAT SELLS FOR 3.49? ROUND EACH BAG TO THE NEAREST WHOLE NUMBER

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Question 136888: i'm having a hard time understanding how to identify the slope and y-intercept of y = -4/3x + 3 and graphing the line.
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Question 137053: solve the following system of linear inequalities by graphing x
3x-y<2, x+y>2
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Question 136989: solve the equation.
1/x+1 + 1/x-1 =2/x^2-1
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Question 137101: solve the equation and complete the table. this was a test problem, I didn't
understand how to complete this table or any other table as far as that goes....please help....
note: please tell me how to complete these tables, is their a formula to make this easier to do. HERE'S THE EQUATION; y=-6x-4 x and y table
Click here to see answer by MORUPHOSUOLALE(24)

Question 137102: Hi Tutor, please me help on the below 2 word problems
1. The sum of the digits of a two-digit number is 10. If the digits are reversed, the number is increased by 36. What is the original number?
2. The sum of the digits of a two-digit number ois 12. If the digits are reversed, the new number is 18 more than the original number. Find the original number.
Thank you..
Click here to see answer by ankor@dixie-net.com(15746)

Question 137177: Could you please use this as an example to solve each system by substitution method and tell if the equations are independent, dependent or inconsistent?
Thank you.
2x-y=4
2x-y=3
Click here to see answer by stanbon(57967)

Question 137247: Why is it true that at the x-intercept, the value of y is 0, and at the y-intercept, the value of x is 0? Please give 1 or 2 examples please?
I would like to say thank you for taking time out of your schedule to assist me. I do appreciate it.
Thank you.
Click here to see answer by Earlsdon(6294)

Question 137295: Could you please explain to me "How do you interpret the slope and y-intercept in a real world example" and include details please.
I will truly be appreciated.
Thank you.
Click here to see answer by stanbon(57967)

Question 137402: Please help!
When looking at two linear equations how can you tell lines are corresponding without putting in slope-intercept form?
If possible could you include example?
Thank you very much for giving your time.
Click here to see answer by vleith(2825)

Question 137394: -Determine how many solutions exist
-Use either elimination or substitution to find the solutions (if any)
-Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection Help Thanks :D .
1)4x = 8 and 5y = 15

2) 0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3

Click here to see answer by sassylilmommie(4)

Question 137391: Please help :D
For the following systems of linear equations
-Determine how many solutions exist
-Use either elimination or substitution to find the solutions (if any)
-Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection

1) 4x = 8 and 5y = 15

2)0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3

Click here to see answer by sassylilmommie(4)

Question 137412: Please help me , I have three questions.
1. Find the slope of the line that passes thourgh the points (2,3) and (5,8)
2. Find the equation of the line that passes through the points (3,-2)
and (4,-2)
Find the equation, in standard form with all interger coefficients of the line perpendicular to x + 3y = 6 and passing through (-3,5)
Thank you so much for your help
Click here to see answer by checkley77(12569)

Question 137506: graph 3x -1 = 5xy
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Question 137517: tutor could you check my work please?
Find the midpoint of the segment with endpoints (5,8) and (-4,12)

=(x^1+x^2/2, y^1+y^2/2)
=(5-4/2, 8+12/2)
=(-1/2, 10)

thank you!
Click here to see answer by Earlsdon(6294)

Question 137545: Tutor could you help me ..thank you
Express the number in terms of i - sqrt -9 and sqrt -28
Click here to see answer by checkley77(12569)

Question 137630: Could you please assist by graphing and telling if this system is independent, dependent or inconsistent please?
Thank you.
2x-3y=12
3y-2x=-12
Thank you very much

Click here to see answer by checkley77(12569)

Question 137758: graph the linear inequality: x+y<1
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Question 137757: graph the given set of equations on the same coordinate plan an identify the solution
y=-2x+4
y=x+1
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Question 137756: an airplane files 500 miles with the wind for 2 hours and returns against the wind in 3 hours find the speed of the wind and the air speed of the plane
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Question 137743: graph the given set of equation on the same coordinate plan and identify the solution.
y=-2x+4
y=x+1
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Question 137902: Please help Tutor,
A line has an x-intercept 0f (8,0) and a y-intercept of (0,-2). What is the slope of the line?
Thank you
Click here to see answer by checkley77(12569)

Question 138183: What is the equation of the line passing through (1,2) with a slope of m=1
Click here to see answer by stanbon(57967)

Question 138208: Do all graphs of linear equations have x-intercepts? Why or why not?
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Question 138222: y=1/5x
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Question 138134: Please help with this question: If the sum of two consecutive multiples of 6 is 78, what equation would you write to find the numbers?
A) (x+1)+(x+2)=78
B) (x+1)(x+2)=78
C) (x)+(x+6)=78
D) (x)-(x+6)=78
E) None of these
Thank you.
Click here to see answer by checkley77(12569)

Question 138297: Use linear combinations to slove the linear system. Then check your solution.
3g-24=-4h
-2+2h=g
Below is what I have tried, however it was unsuccsessful:
3g+4h=-24
-g-2h=2
_________
-3/1g (fraction)=3 =-21
_________________________
3g+4h=-24-------3g+4h=-24
-3(-g-2h=2)-----3g-2h=2
_________________________
6h=-21/6=-3.5

3(3.5)-4h=-24
9.5-4h=-24
= 9.5
_____________
-33.5/4 (divide)= -8.25
Click here to see answer by stanbon(57967)

Question 138310: can you give me an example of a linear equation that is not a function?
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Question 138355: What rules of operations that apply when you are solving an equation does not apply when you are solving an inequality?
What might be the implications of DQ2 when you consider the number line?

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Question 138392: What Graph represents y = x + 2
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Question 138397: write an equation line in point- slope form and slope-intercept form . slope= 4,passing through (1,3)
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Question 138328: the graphic
x-4y=1
4x+y=21
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Question 138479: Hello please help me i have a test on linear equation and i don't understand it and my test is on sunday please help me . thank you
Click here to see answer by stanbon(57967)

Question 138476: Given 2p-x=50 and p=8000/(x+370), how can you find x?
Click here to see answer by stanbon(57967)

Question 138503: Hi Tutor,
Could you please solve:
|x-4|=|3-2x| for x=
Thank you very much.
Click here to see answer by ankor@dixie-net.com(15746)

Question 138714: Tutor could you help me solve this problem?
sqrt.3x+4+5=9
Click here to see answer by josmiceli(9817)

Question 138715: tutor I am having difficulty with this math problem
Solve (2x-5)(x+8)=0
Click here to see answer by oscargut(900)

Question 138803: Please I hope some one can help me, I am not doing to well in my algebra class.I have three questions I am having trouble with.I want to thank you for all your help in advance.
1. Solve the system of equations using the substitution method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
-3x + y = 1
5x + 2y = -4
2. Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
-7x + y = 8
2x – y = 2
3. Solve the system of equations using the addition (elimination) method.
If the answer is a unique solution, present it as an ordered pair: (x, y). If not, specify whether the answer is “no solution” or “infinitely many solutions.”
3x – 2y = -7
-9x + 6y = 21

Click here to see answer by stanbon(57967)

Question 138781: tutor could you help me please: how do I simplify: i^23 and i^24
Click here to see answer by vleith(2825)

Question 138771: Tutor can you help me with this word problem: A parking lot has a perimeter of 600 feet. The width is 30 ft. less than the length. What are the dimensions of the parking lot?
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Question 138961: the first number increased by 7 is equal to twice a second number. the second number increased 9 is equal to three times the first. find these two numbers
Click here to see answer by Earlsdon(6294)

Question 138997: three pieces of 25 cents and two pieces of a cent have a mass of 27 grams. two pieces of a cent coins have a wight of 32 grams. find the mass of each
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Question 138996: in a stack of books 81 cm high, we have a total of 21 books. there are 5 cm thick and others of 3 cm thick. how do we each thickness?
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