Tutors Answer Your Questions about Inequalities (FREE)
Question 108620: ): HI!
please help me with this..........
length , area
10 , 10
9 , 18
8 , 24
7 , 28
6 , 30
5 , 30
4 , 28
3 , 24
2 , 18
1 , 10
graph this and explain whether we can connect or not connect points
ps.
i think the equation is
L^2+11 and if i am wrong please correct me
Click here to see answer by Fombitz(13828)   |
Question 108980: I am to Solve this inequality...the actual answer is (-9/5, 1)
(didnt know how to make vertical lines but the 5k+2 has vertical lines on each side)
What I got so far
5k+2 -3 <=4
7k-3<=4
4k-3<=4-3
4k<=1
I was thinking next to take each side divide by 4 but it wasnt working out
Can you please help me find out where I went wrong.
Thank you so much :)
Click here to see answer by jim_thompson5910(28717) |
Question 108994: I could totall be overthinking this because I tend to do so, but can you please tell me if I am correct or understand the following.
Trying to solve the inequality the absoulute value of b < = 8.
I belive the answer is [-8,8] becuase obvisouly the 8 would be equal to the 8 but from every example i have seen like this the same # is always used as a negitive and I dont understand why (in this case the -8).
Is this always the case or is there something I am missing or overthinking?
Thank you kindly for your help :0)
Click here to see answer by jim_thompson5910(28717) |
Question 109120: I need help solving rational inequalities. I have to solve 4x/x+1 < -3x/x-6 algebraically using a number line and test points. I have to determine when f(x)=4x/x+1 is less than g(x)= -3x/x-6.
I have tried to answer the question but my answer doesn't make any sense to me because I can't tell when f(x) is less than g(x) from when I solved the inequalitie algebraically using the method my teacher taught me.
Click here to see answer by stanbon(57982) |
Question 109381: 1) You are collecting sponsers for a 10-mile walk-a-thon. So far, you have collected $230.00 in donations. How much must the last sponsor pledge per mile to reach or exceed the goal of $300.00?
2) You are biking at a rate of 30 miles per hour. You have already biked 20 miles. How many more hours must you bike to surpass your goal of 50 miles?
Click here to see answer by stanbon(57982) |
Question 110805: Could you help me define/show how to solve:
A toll way machine contains $2100 worth of quarters, dimes, and nickels. There are nine times as many dimes as quarters and five times as many nickels as quarters Determine the number of quarters, nickels, and dimes in the collection. Represent with only one variable.
Click here to see answer by MathLover1(6813)  |
Question 111930: Hi, I am working on an inequality word problem and I would like to know ifthis is right. I appreciate your help on this. Here it is: Translate the following statements into inequalities. Let x represent the number in each case.
Here is the problem; 2 times a number, increased by 28, is less than or equal to 6 times that number.
The equation I have is this; 2x+28<6 (there should be a line under the "greater than sign" as well)
I hope I explained this well for you. Thank you for your input.
Barb Neely
Click here to see answer by jim_thompson5910(28717) |
Question 112921: Hello, I am working on a problemn that goes like this: The cost of a long-distance telephone call is $0.36 for the first minute and $0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $3.
What I have for the inequality so far is this: x=0.36+0.21x=$3.00, am I even close on this?
Thank you for your help,
Barb Neely
Click here to see answer by ptaylor(2052)  |
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