Tutors Answer Your Questions about Inequalities (FREE)
Question 174653: Jerry's grandmother gave him a $125 gift card to Tower Records for his birthday. This week Tower Records is having a sale on current release cd's for $12. The Regular cost of CD'S is $15.
A. If x reresents the number of sale priced CD's and y represents the number of regularly priced CD's, write an inequality that represents the different number of CD's he can purchase with his gift card.
B. Find 3 possible an realistic solutions. Support your answers algebraically.
Click here to see answer by josmiceli(9680)   |
Question 174653: Jerry's grandmother gave him a $125 gift card to Tower Records for his birthday. This week Tower Records is having a sale on current release cd's for $12. The Regular cost of CD'S is $15.
A. If x reresents the number of sale priced CD's and y represents the number of regularly priced CD's, write an inequality that represents the different number of CD's he can purchase with his gift card.
B. Find 3 possible an realistic solutions. Support your answers algebraically.
Click here to see answer by Mathtut(3670) |
Question 173248: Hi,
I need help graphing the inequality.
I have to do the following: Graph the following system of inequalities, find the corner points, and label on the graph:
x+y>=14
2x+y>=20
x+3y>=24
x>=0
y>=0
Thank you in advance for your help.
Freedom45
Click here to see answer by nycsub_teacher(90) |
Question 175331: I am trying to find the minimum for f(x)=5x^2-20x+3. i think to find the min. you do -b/2a. In which case i did (-)-20/2(5) and got 2. My teacher said that this answer was incorrect. If you could please tell me where i went wrong it would be much appreciated. thanks!
Click here to see answer by KnightOwlTutor(293)  |
Question 175328: I confused trying to solve 2x^2-5x-3>=0. i think you begin by adding 3 to both sides but then having the exponet is throwing me off. i dont know what to do after that. If you could please explain it would be much appreciated. thanks!
Click here to see answer by ptaylor(2048)  |
Question 175463: Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 30 tons of rock to cover the area. If each ton cost $60 and each tree is $84, what is the maximum number of trees you can buy with a budget for rock and trees of $2,500? Write an inequality that illustrates the problem and solver. Express your answer as an inequality and explain how you arrived at your answer.
Click here to see answer by Mathtut(3670) |
Question 175463: Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 30 tons of rock to cover the area. If each ton cost $60 and each tree is $84, what is the maximum number of trees you can buy with a budget for rock and trees of $2,500? Write an inequality that illustrates the problem and solver. Express your answer as an inequality and explain how you arrived at your answer.
Click here to see answer by jim_thompson5910(28595) |
Question 175332: I have to solve by graphing. I have attempted this problem but i am not certian that i did it correctly. It is 2x-3y>=-3 and 3y>-2x-6. the point of intersection i came up with was around (-2.5, .5). If this is incorrect could you please explain why and the correct way to do it? thanks!
Click here to see answer by ankor@dixie-net.com(15652)  |
Question 175633: I am not understanding exactly how to do this problem. My answer comes up entirely different from the given answer in the book. I need to know the steps in solving this Inequality.
Compound Inequality. Give the solution set in both interval and graph form.
x+2 > 7 or 1-x > 6
I come up with this solution:
x+2 > 7 or 1-x > 6
-2 > -2 or -1 -1
x> 5 or x > 5
The book says the union is ( -infinity,-5) U (5,infinity)
I came up with two positives. I can not figure out what am I doing wrong in this Inequality, please help.
Your help is gracefully appreciated.
Thank you!
Lauren
Click here to see answer by stanbon(57356) |
Question 175501: A French horn student has a range of no more than 17 notes from the middle C. let x=0 correspond to middle C. Write an absolute value inequality that shows the range of notes the student is able to play.
Click here to see answer by gonzo(654) |
Question 175711: In woodshop class, you must cut a piece of wood within 3/16 inch of the teacher's specification of 5 1/8 inches. Write an absolute value inequality that describes the acceptable lengths for this piece of wood. Solve the inequality.
Click here to see answer by stanbon(57356) |
Question 175503: A tool and die shop makes a metal pull tab for a pop can. The length of the tab is 1.2 inches. The measurement may have an error of as much as 0.002 inches. Write an absolute value inequality that shows the range of the possible lengths of the tabs. Solve the inequality.
Click here to see answer by stanbon(57356) |
Question 175504: The highest elevation in North America is 20,320 feet above sea level at mount McKinley. The lowest elevation is 282 feet below sea level in Death valley. Find an absolute value equation that has the highest and lowest elevations in North America as its solution.
Click here to see answer by Edwin McCravy(8909)  |
Question 175502: the average price of a particular brand of shampoo is $3.26. Depending on where you shop, the price may vary by as much as $0.25. Write an absolute value inequality describing the possible prices of the shampoo. Solve the inequality.
Click here to see answer by stanbon(57356) |
Question 176215: Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not? Write an inequality and use both multiplication and addition properties of inequalities.
Click here to see answer by solver91311(16890)  |
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