Tutors Answer Your Questions about Linear-systems (FREE)
Question 252576: I am trying to find out two symmetrical points from the equation y= -1/3(x-5)^2 -8 the vertex is 5,-8 and the symmetry axis is x=5 the parabola is concave down as -1/3 is a negative. I am sruggling to find the two points so i can do a graph.
Click here to see answer by Edwin McCravy(8909)   |
Question 252604: There are 35 tickets to be sold for the dance. The number of tickets sold to seniors must be four times the number of tickets sold to juniors.
please give me 2 linear equations and a solution.
A diamond today costs 10$ more than twice what it cost last year. The sum of the cost (last year and this year) is 2500$. What is the cost of last years diamond?
i need 2 linear equations and a solution for this question also.
THANK U SO MUCH!
Click here to see answer by drk(1908) |
Question 252604: There are 35 tickets to be sold for the dance. The number of tickets sold to seniors must be four times the number of tickets sold to juniors.
please give me 2 linear equations and a solution.
A diamond today costs 10$ more than twice what it cost last year. The sum of the cost (last year and this year) is 2500$. What is the cost of last years diamond?
i need 2 linear equations and a solution for this question also.
THANK U SO MUCH!
Click here to see answer by jim_thompson5910(28598) |
Question 252579: how can you figure out two symmetrical points from these two equations. y=5(x+6)^2 and y= -3/5(x-3)^2 I need to have the work done so i can learn from this and figure out other equations. I am not understanding. thank you.
Click here to see answer by stanbon(57387) |
Question 252579: how can you figure out two symmetrical points from these two equations. y=5(x+6)^2 and y= -3/5(x-3)^2 I need to have the work done so i can learn from this and figure out other equations. I am not understanding. thank you.
Click here to see answer by dabanfield(803) |
Question 252709: Trying to develop a linear equation for:
Gas used: 5, 8, 12, 15, 18, 20, 22, 25
Miles driven, 80, 100, 180, 225, 280, 290, 320, 375
Click here to see answer by drk(1908) |
Question 253245: I am trying to solve these equations. We are to graph the system and estimate the solution then check the solution algebraically:
2x-3y = -2
x+y = -6
This is what I have done so far and it isn't coming out correctly:
2x-3y = -2
2x+2=3y
2/3x + 2/3 = y
x+y= -6
x+6= -y
I plotted the line at (0,2/3) (3, 2 2/3) and at (-3, -1 1/3)
The book says I am wrong and I don't understand why. Please help!
ANy help you can give would be greatly appreciated. Thank you.
Click here to see answer by jim_thompson5910(28598) |
Question 249847: On a canoe trip, Rita paddled upstream (against the current) at an average speed of 2 mi/h relative to the riverbank. On the return trip downstream (with the current), her average speed was 3 mi/h. Find Rita's paddling speed in still water and the speed of the river's current.
Click here to see answer by richwmiller(9143)  |
Question 253285: The tens-digit of a three digit number is 3 less than 5 times the units digit. Three times the sum of the digits is 2 more than 4 times the hundreds digit. If the digits are reversed, the new number is 594 less than the original number. Find the original number. (find a system of 3 equations then use the system to find the original number).
Click here to see answer by josmiceli(9697)  |
Question 253285: The tens-digit of a three digit number is 3 less than 5 times the units digit. Three times the sum of the digits is 2 more than 4 times the hundreds digit. If the digits are reversed, the new number is 594 less than the original number. Find the original number. (find a system of 3 equations then use the system to find the original number).
Click here to see answer by richwmiller(9143) |
Question 253285: The tens-digit of a three digit number is 3 less than 5 times the units digit. Three times the sum of the digits is 2 more than 4 times the hundreds digit. If the digits are reversed, the new number is 594 less than the original number. Find the original number. (find a system of 3 equations then use the system to find the original number).
Click here to see answer by JimboP1977(308)  |
Question 253244: The perimeter of a rectangle is 48 inches. The width of the rectangle is 2 more than half the length.
. Write a system of linear equations to model this
. Name the method you would use to solve system you wrote above
. Use the method you stated above to solve the system for the length and width of the rectangle stated above
Click here to see answer by Greenfinch(383)  |
Question 253278: A two-digit number is the same as the number with its digits reversed increased by three times the original number's unit's digit. If five times the sum of the digits is 70, find the original number. (find a system of two equations then use the system to find the original number).
Click here to see answer by checkley77(12569) |
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