Tutors Answer Your Questions about Inequalities (FREE)
Question 529309: Need assistance with this, i cant figure it out. It's driving me mad. Thank you.
Lena is choosing between two exercise routines.
In routine #1, she burns 25 calories walking. She then runs at a rate that burns 18 calories per minute.
In routine #2, she burns 49 calories walking. She then runs at a rate that burns 14 calories per
minute.
For what amount of time spent running will routine #1 burn fewer calories than routine#2? Use t for the number of minutes spent running, and solve your inequality for t.
Click here to see answer by josmiceli(19441)   |
Question 529391: I am having problems solving these 2 equations:
(x-2)divided by 3 is greater than 4
and
(x+5)divided by 3 is less than or equal to 2
I need to know the steps to solving the equation. I have the answers already.
Click here to see answer by edjones(8007)  |
Question 530238: I. I want to spend no less than $3,000 and no more than $7000 on my landscaping project.
a) Write an inequality that shows how much money I can spend. Let “m” represent the money. (3 pts)
b) For the first phase of my project I want to spread decorative rocks and plant some hibiscus bushes. I need 35 tons of rock to cover the area. If each ton costs $50 and each bush costs $25 how many bushes can I buy with a budget of $2000? Write an inequality that illustrates the problem then solve it (let “h” represent the hibiscus bushes). Express your answer as an inequality and explain how you arrived at your answer. (3 pts)
c) Can I buy 7 hibiscus bushes? Explain why or why not.
Click here to see answer by rfer(16322) |
Question 531952: Solve the inequality and graph the solution set on a real number line.
(1/x+1) > (2/x-1)
Here is what I was trying:
(1/x+1) > (2/x-1)
-(2/x-1) > 0
__________________
(1/x+1)-(2/x-1) > 0
(1(x-1)/((x+1)(x-1))-(2(x+1)/(x+1)(x-1))>0
________________________________________
(x-1-2x-2)/((x+1)(x-1))>0
_______________________
(-x-3)/(x+1)(x-1)>0
________________________
Set numerator equal to 0
-x-3=0
x=3
________________________
Set denominator equal to 0
x+1=0 x=-1
x-1=0 x=1
__________________________
Then I got stuck! I don't even know if I was doing the first part right.
Click here to see answer by Earlsdon(6294) |
Question 535489: A collection of stamps consist of2,5,and 7 cent stamps. There are nine more two cent stamps then 5 cent stamps and twice as many 7 cent stamps as 5 cent stamps. The total value of he stamps is $1.44. Find the number of each type of stamp in the collection
Click here to see answer by lmeeks54(111)  |
Question 535530: Can you please help me solve this Inequality?
Problem:
A purse contains 30 coins, all either quarters or dimes. The total value of the coins is greater than $5.20. At least how many of the coins are quarters? At most, how many are dimes?
Thank you.
Click here to see answer by fcabanski(1391) |
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