Inequalities Help - Please Help

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AbhiKap

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Aug 23, 2012
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Hello, AbhiKap here

I am in eight grade, learning inequalities. We had a quiz today and one of the questions was:

"A truck can haul at most 2000 kilos of material. Write an inequality for this"

What would it be?
I wrote what I thought it was,, but I just want to check if it is correct.

Thanks, Help is appreciated
 
AbhiKap said:
Hello, AbhiKap here

I am in eight grade, learning inequalities. We had a quiz today and one of the questions was:

"A truck can haul at most 2000 kilos of material. Write an inequality for this"

What would it be?
I wrote what I thought it was,, but I just want to check if it is correct.

Thanks, Help is appreciated
Click to expand...

AbhiKap - you know the rules.

You need to show YOUR work - then one of us will show his/her work.
 
AbhiKap said:
ok so I don't really know, but I put: 2000 (is smaller than or equal to) t. That's all I put. Correct?
Click to expand...

First - you need to define what 't' is in your equation.

What is it?
 
AbhiKap said:
it said that t is trip and h is haul
Click to expand...
Hi abhikap

Thanks for giving some info about yourself.

It appears that this problem is a piece of a larger problem because "trip" makes no sense given what you have told us the problem is.

Or is this the problem:

\(\displaystyle \text{If a truck can haul at most 2000 kilos per trip, what is the most it can haul in t trips.}\)

This is why it is very important to write down the problem exactly as it is given to you.
 
JeffM said:
Hi abhikap

Thanks for giving some info about yourself.

It appears that this problem is a piece of a larger problem because "trip" makes no sense given what you have told us the problem is.

Or is this the problem:

\(\displaystyle \text{If a truck can haul at most 2000 kilos per trip, what is the most it can haul in t trips.}\)

This is why it is very important to write down the problem exactly as it is given to you.
Click to expand...

oh I see..my bad. So, the problem was: A truck can haul at most 2000 kilos of material per trip. Write an inequality for this. Thanks, Help is appreciated
 
AbhiKap said:
oh I see..my bad. So, the problem was: A truck can haul at most 2000 kilos of material per trip. Write an inequality for this. Thanks, Help is appreciated
Click to expand...
OK then

Many of us recommend as a first step DEFINING IN WRITING what variables are relevant and ASSIGNING IN WRITING a unique symbol for each. The main purpose is to eliminate burdening your memory, but a secondary purpose is to facilitate intelligent discussion. There are frequently several correct ways to do this. I'll start.

\(\displaystyle t = number\ of\ trips.\)

\(\displaystyle h = maximum\ load\ per\ trip.\)

Can you write the required inequality now?
 
JeffM said:
OK then

Many of us recommend as a first step DEFINING IN WRITING what variables are relevant and ASSIGNING IN WRITING a unique symbol for each. The main purpose is to eliminate burdening your memory, but a secondary purpose is to facilitate intelligent discussion. There are frequently several correct ways to do this. I'll start.

\(\displaystyle t = number\ of\ trips.\)

\(\displaystyle h = maximum\ load\ per\ trip.\)

Can you write the required inequality now?
Click to expand...

Is this correct: t[FONT=arial, sans-serif] [/FONT]≥ 2000?
 
AbhiKap said:
Is this correct: t≥ 2000?
Click to expand...
No because t has been defined as the number of trips. You have been given no information (or at least you have shared with us no information) about the number of trips. That is part of the point of writing things down. You can see that t is the number of trips. Does the problem impose any restriction on the number of trips?
 
JeffM said:
No because t has been defined as the number of trips. You have been given no information (or at least you have shared with us no information) about the number of trips. That is part of the point of writing things down. You can see that t is the number of trips. Does the problem impose any restriction on the number of trips?
Click to expand...

There were two questions. The first one didn't say how many trips there were, it was just the sentence said above. The second one did say, but that was a different problem. I need help on number 1 right now. Thanks, Help is appreciated
 
AbhiKap said:
[My materials say] that t is trip and h is haul
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Your materials are not very clear.

"h is haul" does not make sense.

I'll go with Jeff's interpretation: symbol h represents the maximum number of kilograms that this truck can carry.

The phrase "at most 2,000 kilos" means that the truck can carry 2,000 kilograms or less.

Therefore, symbol h must represent a value that is less than or equal to 2000.
 
AbhiKap said:
There were two questions. The first one didn't say how many trips there were, it was just the sentence said above. The second one did say, but that was a different problem. I need help on number 1 right now. Thanks, Help is appreciated
Click to expand...
Abhikap

If the first problem did not ask anything about trips and t was defined as trips, then why in the world would you even think about putting t into the answer of the first problem? This is not math; this is common sense. And it was exactly for this reason that I told you to write down what the symbols meant. If t is for trips and problem 1 does not talk about trips and your only other symbol is h, then what might be a good guess about what symbol is relevant to answering problem 1?

You do not give a complete and accurate statement of the given problem AS IS REQUESTED in the guidelines. I cannot possibly have been talking to you about problem 2 because you have not even said what it is. If you are not going to think about what my responses mean, then there is no reason for me to respond to you.
 
mmm4444bot said:
Your materials are not very clear.

"h is haul" does not make sense.

I'll go with Jeff's interpretation: symbol h represents the maximum number of kilograms that this truck can carry.

The phrase "at most 2,000 kilos" means that the truck can carry 2,000 kilograms or less.

Therefore, symbol h must represent a value that is less than or equal to 2000.
Click to expand...

So, you mean h (is less than or equal to) 2000?
 
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