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 Question 137987: I have one more word problem that I cannot do correctly. I need some serious hlp. The hockey team receives 2 points when they win and 1 point when they tie. One season a team won the championship with 69 points. They won 12 more games than they tied. How many wins and how many ties did the team have? Help please, I still do not get how to do these........ Click here to see answer by stanbon(57377)

 Question 138035: What is the vertex of 2x squared minus 8x plus 3 Click here to see answer by stanbon(57377)

 Question 138013: Hello everyone, it has been a while since I have had to ask for help, but I really need help now and would appreciate your help. I am taking an algebre class and of course it gets harder as it goes well I am at the 'stumpted' stage. Solve the system of equations by graphing. Then classify the system as consistent or inconsistent; and the equations as dependent or independent. y=-x-12 5x-4y=3 Click here to see answer by stanbon(57377)

 Question 138082: An airplane flies 738 mi against the wind and 1062 mi with the wind in a total time of 9 hours. The speed of the airplane in still air is 200 mi/h. What is the speed of the wind? Click here to see answer by checkley77(12569)

 Question 138131: Would someone please show the graph and whether concave up or concave down? y= -(x-2)^2 y= -(x^2-4x+4) Click here to see answer by checkley77(12569)

 Question 138130: Would someone please show the graph and whether concave up or concave down? y= -(x-2)^2 y= -(x^2-4x+4) Click here to see answer by checkley77(12569)

 Question 138085: What should be the diameter (d) of a pizza so that it has the same areas as two 10-in.-diameter pizzas? Do you get more to eat with a 15-in. pizza or two 10-in. pizzas? Click here to see answer by scott8148(6628)

 Question 138058: The perimeter of a rectangle is 144 inches. The length exceeds the width by 46 inches. Find the length and the width. The length in inches ?? The width in inches ?? Help me please. I am so failing this clas s Ijust cant grasp this stuff. Help!! Click here to see answer by scott8148(6628)

 Question 138033: Hockey teams receive 2 points if they win and 1 point for a tie. One season a team won a championship with 54 points. They won 9 more games than they tied. How many wins and how many ties did the team have? Help me please I am terrible with these word/math problems. Click here to see answer by scott8148(6628)

 Question 138029: Solve by the substitution method. 4x+4y=-4 -2x+y=11 What is the solution to the system? Help with this too please?!?!! Click here to see answer by scott8148(6628)

 Question 138228: Given -x^2-6x-3, is the vertex a maximum or minimum for the function? What is the value fo that maximum or minimum? There is nothing in my book about maximums and minimums, please help! Click here to see answer by solver91311(16897)

 Question 138240: Solve - 3/4 x>_ -5/8 The solution set is Can someone please help with this one. This time I am actually getting some of my home work done AND understand it. This chapter is easier than the last few have been. or at least so far it (I dont wanna speak too soon) Thanks. Click here to see answer by solver91311(16897)

 Question 138251: Solve 0.7x + 1 <_ 1.5x -6 (the _ is supposed to be under the <) The solution is xlx? ? Can you help with this please? Click here to see answer by scott8148(6628)

 Question 138242: Solve. 2x + 1 < 13 The solution is Click here to see answer by scott8148(6628)

 Question 138255: Solve 3/5 (3x-1) > 12 Use the set-builder notation to describe the complete solution. Help me what the heck is set-builder notation???? HELP Click here to see answer by stanbon(57377)

 Question 138542: 1. Suppose 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 representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to represent floor plan #1 and y to represent floor plan #2. Write an equation that illustrates the situation. What would be the correct equatio for this? x + y = 56?? Or not even close? Click here to see answer by vleith(2825)

 Question 138541: x + 11 < - 2 or x + 11 > 4 The solution is xlx?? Can someone please help with this i do not understand these at all. Click here to see answer by vleith(2825)

 Question 138535: The body mass index, I, can be used to determine an individual's risk for heart disease. An index less than 25 indicates a low risk. The body mass index is given by the formula, or model,I= 700 W/H2(little 2 over the H) , where W=weight, in pounds, and H=height, in inches. Francis weighs 176pounds and stands 68 inches tall. What is his approximate body mass index? Find an inequality describing all weights W that Francis can have and be in the low-risk category. Francis approximate body mass index is?? Can someone help me with this?? Click here to see answer by vleith(2825)

 Question 138539: Solve: -10 <_ 3x-9 <_ -2 (the _ are supposed to be under the <) {x | ?? <_ x <_ ??} (again the _ is supposedto be under the <) Can someone hlp me with this. Do i add 2 to each equation first?? Click here to see answer by stanbon(57377)

 Question 138574: Graph the system of inequalities. y >_ -2 x >_ 5 Of coure the _ is supposed to be under the > Can you help with this please. I am baffled. Click here to see answer by solver91311(16897)

 Question 138589: The price of a barrel of crude oil in 1998 was \$25. By 2004, the price had increased to \$54 per barrel. Assuming oil prices exhibit exponential growth, what year will the price of oil be \$123 per barrel? Click here to see answer by checkley77(12569)

 Question 138595: 1.Suppose 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 representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to represent floor plan #1 and y to represent floor plan #2. Write an equation that illustrates the situation. Would this be x= 1, y= 2 ? Is this right or should the number 56 be divided by x and y also? HELP Click here to see answer by stanbon(57377)

 Question 138601: 2. As you are leaving the community, you notice another new community just down the street. Because you are in the area, you decide to inquire about it. (HELP can you please help) a) The sales representative here tells you they also have two floor plans available, but they only have 38 homes available. Write an equation that illustrates the situation. Use x and y to denote floor plan #1 and floor plan #2 respectively. x = 19, y = 19, is this correct? b) The representative tells you that floor plan #1 sells for \$175,000 and floor plan #2 sells for \$200,000. She also mentions that all the available houses combined are worth \$7,200,000. Write an equation that illustrates this situation. Use the same variables you used in part a. x=\$175,000, y = \$200,000 is this correct???? Click here to see answer by stanbon(57377)

 Question 138583: The approximate distance above sea level,d, in kilometres, is given by the formula d= (400(log(P/2)-2.5))/30, where P is the barametric pressure in kilopascals(kPa). What is the barometric pressure 12 kilometres above sea level? PLEASE HELP ME :) Click here to see answer by ankor@dixie-net.com(15659)

 Question 138591: The midpoint of AB is (3sqrt5,2sqrt3). If the coordinates of the endpoint B are (-sqrt5,1/2sqrt3), then what are the coordinates of endpoint A? Click here to see answer by stanbon(57377)

 Question 138562: 0.7x + 1 <_ 1.5x - 6 (I cannot get the_to go under the < like it should be) Can someone help me with this one please. Click here to see answer by edjones(7569)
 Question 138562: 0.7x + 1 <_ 1.5x - 6 (I cannot get the_to go under the < like it should be) Can someone help me with this one please. Click here to see answer by MathHelperer(1)

 Question 138571: Graph the inequality on a plane. y > 4x HELP please. Not sure how to do this this is new to me. Click here to see answer by vleith(2825)

 Question 138681: I have been working on this problem for the pass two days and all I have is a bunch of mumbule jumbule. Can some work the problen in a way that I can understand it please:) ----------------------------------------------------- Marriage penalty eliminated. The value of the expression 3910 + 0.25(x-28,400) is the 2003 federal income tax for a single taxpayer with taxable income of x dollars, where x is over \$28,400 but not over \$68,800. a) Simplify the expression. b) Find the amount of tax for a single taxpayer with taxable income of \$40,000. c) Who pays more, a married couple with a joint taxable income of \$80,000 or two single taxpayers with taxable incomes of \$40,000 each? Click here to see answer by stanbon(57377)

 Question 138740: Solve by using the quadratic formula. I can not reach the correct answer for: 3x2-10x-21=0 I did: -(-10)+-(-10)2 -4(3)(-21) divided by 2(3) = 10=-100+252 divided by 6 10+-352 divided by 6 10+-18.8 divided by 6 correct answer: 5+-2(rad)22 over 3. Please show me what I am doing wrong. Thank you for your attention. Kathy Click here to see answer by stanbon(57377)

 Question 138818: What is the y-intercept of -1/6(y+3)=(1/2)^x-3???? I think the answer is (0,-51) BUT I am not sure :( Click here to see answer by Edwin McCravy(8909)