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Question 445734: I tried this on my own and then checked it against answers I found and nothing makes sense to me now...this is a 4 part problem and I am showing what I got so far too.
Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city.
a-The sales rep informs you that there are 56 houses for sale with two floor plans still available. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the situation. I wrote x+y=56
b-The sales rep later indicates that there are three times as many homes available with the second floor plan than the first. Write an equation that illustrates this situation. Use the same variables you used in part a. I got y=3(x)
c-Use the equations from parts a and b of this exercise as a system of equations. Use substitution to determine how many of each type of floor plan is available. Describe the steps you used to solve the problem. so my equations are x+y=56 and y=3(x)...is this all right so far?
d-What are the intercepts of the equation from part a of this problem? What are the intercepts from part b of this problem? Where would the lines intersect if you solved the system by graphing? I got two intercepts of (0,56) and (56,0). I also found that (14,42) is where it intercepts. Am I right or can you show me the correct way? I tried the equations the best I could....
Click here to see answer by scott8148(6628)

Question 445784: i have to use substitution to solve this linear system
x + 4y = 17
5x + 2y = -5
Click here to see answer by rfer(16322)

Question 445966: State whether the system is consistent and independent, consistent and dependent, or inconsistent: x + y = 4
2x - y = -7
Click here to see answer by ewatrrr(24785)

Question 446028: Please help me Solve this linear Equation.
x+2(x-5)=14
Click here to see answer by stanbon(75887)

Question 446133: Solve the system of equations.
2x+8y+z=17
-x+y+4z=-7
x+4y+4z=-2

I would appreciate the help. thank you
Click here to see answer by mananth(16946)

Question 446200: its a linear programming Question:
Click here to see answer by rwm(914)

Question 446280: 5x + 5y = -20
9x + y = 66
Click here to see answer by jorel1380(3719)

Question 446627: Solve the system by the best method.
4x + 6y = 4
4x + 6y = 10
Click here to see answer by MathLover1(20850)

Question 446658: A small company produces both bouquets and wreaths of dried flowers. The bouquets take 1 hour of labor to produce, and the wreaths take 2 hours. The labor available is limited to 80 hours per week, and the total production capacity is 60 items per week. Write a system of inequalities representing this situation, where x is the number of bouquets and y is the number of wreaths.
Click here to see answer by stanbon(75887)

Question 446815: Hi! My question is: What are the dimensions of a rectangle having perimeter 28 cm and a diagonal of length 10 cm. I'm hoping that using the pythagorean theorem is the correct way to go about this, but I keep getting strange answers. Any help would be greatly appreciated! Thanks!
Click here to see answer by richard1234(7193)

Question 446817: Hi! I am supposed to solve this system: 2x-5y+4z=18, x+3y+5z=7, -3x-2y+4z=22. These kinds of problems seem so daunting to me. I do t even know where to begin. Any help would be greatly appreciated! Thanks so much!
Click here to see answer by sudhanshu_kmr(1152)

Question 446989: x-4y=8 how do you fix this
Click here to see answer by richard1234(7193)

Question 447093: 3x + 5y = 0
x - 4y = 0
Click here to see answer by Alan3354(69443)

Question 447231: solve by substitution
8x+4y=4
9x-4y=-38
Click here to see answer by mananth(16946)

Question 447336: how do you prove your solution is correct in a linear equaton?

Click here to see answer by algebrahouse.com(1659)

Question 447410: x+y=3
x^2+y^2=369
Please show me the steps to solve this in any way.
Click here to see answer by mananth(16946)

Question 447903: substitution 3m + 4k = 14
2m + k = 1

with steps too
Click here to see answer by unlockmath(1688)

Question 447905: substitution
a - 4b = 2
2a - 5b = 1
with steps too
Click here to see answer by mananth(16946)

Question 447911: I need to solve x2(this is x squared)+2x-4=0
I tried to solve by adding 4 to both sides to get x squared +2x=4
Then I divided 2x by 2 and squaring to get 1
then I added one to both sides to get X squared +2x+1=5
Then I factored to get (x+1)squared=5
Then I took the square root of both sides to get x+1=sq root of 5
Then I subtracted one from both sides to get
x=-1+sq root of 5 and x=-1-sq root of 5
Is this correct?
Click here to see answer by ewatrrr(24785)

Question 448088: Mary was asked to find the slope of the line 3x - 4y = 12. She says the answer is
3
4
.
Click here to see answer by Alan3354(69443)

Question 448050: how do u find 7x-9y=23
Click here to see answer by Alan3354(69443)

Question 448111: Solve the system by the method of elimination.
x-2y+3z=11
2x-z=3
3y+z=-8
Click here to see answer by Edwin McCravy(20056)

Question 448391: 2x + 4y = 16
3x - 2y = 6
is this equation one solution, no solution , or infinate number of solutions
Click here to see answer by richard1234(7193)

Question 448421: -2x+3y=14
x-4y=-12
Click here to see answer by mananth(16946)

Question 448439: elimination / addition
x + 5y = 7
-x + 7y = 17
Click here to see answer by richard1234(7193)

Question 448566: how do you solve y=4x+2 and y=3x+6 step by step?
Click here to see answer by ewatrrr(24785)

Question 448638: which equation reresents a line parallel to the line whose equation is 2y-5x=10
a.) 5y-2x=25
b.) 5y+2x=10
c.) 4y-10x=12
d.) 2y=10x=8
please & THANK YOU! (:
Click here to see answer by scott8148(6628)

Question 448917: What I need is a thorough laymens term on how to solve this math.
Determine whether the point (7,2) is a solution of the system
-3x+4y=-13
-2x+8y=2
by substituting the point into each equation?
Thank you so much
Click here to see answer by stanbon(75887)

Question 449108: I have to solve by substitution. Clear fractions first.
1/5x+1/5y=1
1/5x-1/5y=9/5
I keep getting the wrong answer.
Click here to see answer by Leaf W.(135)

Question 449380: I need help with this question please:
Solve the system of equations
x + y = 5
x - y = -9
Click here to see answer by Math_Teacher_37(4)

Question 449380: I need help with this question please:
Solve the system of equations
x + y = 5
x - y = -9
Click here to see answer by nerdybill(7384)

Question 449400: elimination/ addition
a - 2b = 7
3a - 2b = 9
with steps too
Click here to see answer by solver15(27)

Question 449414: elimination/ addtion method
x - 3y = 4
x + 5y = -4
Click here to see answer by solver15(27)

Question 449397: elimination/addition
a - 3b = 4
a + 5b = -4
with steps too
Click here to see answer by solver15(27)

Question 449471: x+7y = 3 (1)
x=9-7y (2)
Solve the system of equations, is there a solution?
Click here to see answer by aagam94(6)

Question 449483: wat is y to the second power minus seven y plus four

y scuared-7y+4 when y =-3
Click here to see answer by edjones(8007)

Question 449441: solve by using elimiation/addtion
2m - 5n = 13
5m + 3n = 17
show steps
Click here to see answer by mananth(16946)

Question 449438: solve elimination/addtion method
2c - 3d = 14
5c - 6d = 32
show steps
Click here to see answer by mananth(16946)

Question 449398: elimination / addition

-5x - 3y = -14
5x - 6y = 32
with steps too
Click here to see answer by mananth(16946)

Question 449402: elimination/ addition
3x + y = 7
x + 2y = 4
with steps too
Click here to see answer by mananth(16946)

Question 449742: y=2x^2,y=x+3 solve using system of equations algebraically.
Click here to see answer by Math_Teacher_37(4)

Question 449814: y=7-x;y^2+x^2=9 solve using system of equations algebraically.
Click here to see answer by robertb(5830)

Question 449859: 4y + x = 3
2x + 8y = 5
Click here to see answer by oberobic(2304)

Question 450021: I need to know how to solve this by substitution.
x=y-6
2x+3y=33
Click here to see answer by nerdybill(7384)

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