Tutors Answer Your Questions about Linear-systems (FREE)
Question 740003: Find the slope, if possible, of the line passing through each pair of points.
1.) (2,-1)and (6,3)
2.) (4,0) and (3.8,2)
3.) (4,11) and (-2,1)
4.) A line K passes though the points (4,2)and(-4,4). A second line H passes through the points (-8,1)and(8,-3). Is the line K parallel to line H? Why or why not?
Click here to see answer by Alan3354(69443)   |
Question 740637: Yor are in charge of event planning for a major corporation that is having a martini coctail hour fot its guest. Your boss has given you a budget of $1,000 and you would like to order Grey Goose vodka for the VIP'S and Skyy vodka for the other guest. A bottle of Grey Goose vodka cost $ 36 and a bottle of Skyy vodka cost $ 20. You must have 37 bottles total. How many of each type should you buy?
SYSTEM OF LINEAR EQUATION
Click here to see answer by josgarithmetic(39617) |
Question 740874: ``Yor are in charge of event planning for a major corporation that is having a martini coctail hour fot its guest. Your boss has given you a budget of $1,000 and you would like to order Grey Goose vodka for the VIP'S and Skyy vodka for the other guest. A bottle of Grey Goose vodka cost $ 36 and a bottle of Skyy vodka cost $ 20. You must have 37 bottles total. How many of each type should you buy?
Click here to see answer by lynnlo(4176) |
Question 740899: Yor are in charge of event planning for a major corporation that is having a martini coctail hour fot its guest. Your boss has given you a budget of $1,000 and you would like to order Grey Goose vodka for the VIP'S and Skyy vodka for the other guest. A bottle of Grey Goose vodka cost $ 36 and a bottle of Skyy vodka cost $ 20. You must have 37 bottles total. How many of each type should you buy?
36g+20y=1000
g+y=37
Click here to see answer by josgarithmetic(39617) |
Question 741312: A tugboat goes 180 miles up stream in 15 hours. The return trip down stream takes 10 hours. Find the speed of the tugboat with out a currant and the speed of the currant.
The speed of the tugboat is __ mph and the speed of the currant is __ mph
simplify your answers
Click here to see answer by richwmiller(17219)  |
Question 741309: Use the method of substitution to solve the system of linear equation
5a=3-b
5a=7-b
Select the correct choice below and if necessary fill in the answer box below to complete the choice
A----- There is one solution, the solution is __ ( type an ordered pair )
B----- There are infinitely many solutions
C----- There are no solutions
Click here to see answer by richwmiller(17219) |
Question 736723: Question 18379: A man walks into a bank and makes a withdrawal of $1500 from his savings account. He asks for a specific number of $1 bills and a certain number of $10 bills. He also asks for ten times as many $5 dollar bills as $1 bills and twice as many $50 bills as $10 bills. How many bills of each type does he get?
Click here to see answer by richwmiller(17219) |
Question 741985: I need help writing the equations for this word problem. Two airplanes flying in opposite directions from the same airport. The second plane flies 50 mph faster than the first plane, but it starts one-half hour later. Two hours after the first plane started, the planes are 1825 miles apart. How fast is each plane flying?
Do I need to use d=rt?
is one of the equations x + y =1825?
Appreciate any help.
Click here to see answer by mananth(16946)  |
Question 742294: this is solving two equations using substitution.
4x+3y=15 and 5x-2y=13. I have tried: 4x+3y=15 subtracted 4 from both sides and then divided it by 3 to get the y by its self and then I plugged it into the second equation but I cant find the correct answer after this.
Click here to see answer by josgarithmetic(39617) |
Question 742350: For an event if you purchased 8 adult tickets and 6 children tickets for your party at a cost of 132 dollars.A friend purchased 10 adult tickets and 4 children tickets for 144 dollars.Find the price of the adult ticket and the price of the children ticket.
Click here to see answer by mananth(16946) |
Question 742372: Hi there,
I am having trouble with finding an equation for two sets of coordinates.
for example, the question is
find the equation for the coordinates (0,-3) (2,3)
I know y=mx+c and I know how to find m and c but I don't understand some things.
would they have the same equation or not? because for x1 y1 the equation would be
y=3x-3 right? But I don't think it is right for the whole of the coordinates because shouldn't there only be one equation for the co-ordinate (0,-3) (2,3)?
Help or if you cant understand me point me in the direction of a page to help :)
Thanks
Sariah
p.s this site is amazing :) helped out a lot.
Click here to see answer by lwsshak3(11628) |
Question 742425: When viewing a graph with 2 straight lines on it with the ordered pairs, what are the rules on what ordered pairs would come first according to ( x1,x1),(y2,y2). Does the points of the incline come first or the points on the decline.
Click here to see answer by Edwin McCravy(20056)  |
Question 742418: Paddling a canoe with current you can go 12 miles in 2 hours,but against the current the return trip takes 6 hours paddling at the same rate.Find the rate of the current and the rate of paddling in water with no current.Of course,assume the current rate remains the same.
Click here to see answer by MathLover1(20850)  |
Question 742509: Please May I have your help on solving this equation?
Solve the system of linear equations by graphing.
(2x-y=0
(3x-y=-3
What is the solution of the system of equations? Select the corrected choice below and, if necessary, fill in the answer box to complete your choice
A. (-3,-6)( Type and ordered pair)
B. There are infinitely many solutions
C. There is no solution
Click here to see answer by checkley79(3341) |
Question 743980: 1. Which of the following is closest to one of the solutions of the equation x^2 + 6x - 11 = 0
a. –3
b. –1
c. 0
d. 2
2. How many real solutions does the equation x^2 + 4x - n^2 = 0 have?
a. none
b. one
c. two
d. cannot be determined
3. How many real solutions does the equation x^2 + bx + 4 = 0 have if b > 0?
a. none
b. one
c. two
d. cannot be determined
Click here to see answer by solver91311(24713)  |
Question 744432: Please help me solve this equation.
Use the elimination method to solve the system of equations
a+7b=7
a+2b=-3
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. There is one solution, it is __ ( simplify your answer. Type an ordered pair)
B. There are infinitely many solutions.
C. There is no solution.
Click here to see answer by Alan3354(69443) |
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