Math Word Problems Help?

carbon monoxide detectors for boats image

natj429

Hi, i can't seem to understand how to get the equation for these assignments. The answers are in the back of the book but my answer is never the same. I Hope you can explain the process for me. Here are the problems:

1. A riverfront boat storage area is rectangular with fencing on all sides except the side along the river. If 550m of fencing is used and the side along the river is 50m shorter than the two longer sides, find the dimensions of the site. ANSWER: 150m by 200m

2. One laptop computer has 5.5 times the storage capacity of another. Together they can store 65 Gbytes of information. What is the storage capacity of each laptop computer? ANSWER: 10 Gbytes and 55 Gbytes

3. The online cost for an in-home smoke detector and carbon monoxide alarm is $4.29 more than twice the cost of a leading competitor's unit. If the two units are purchased together, their combined cost is $87.36. What is the cost of the more expensive alarm? ANSWER: $59.67
I would appreciate a step by step on how you reached the answer. Thanks

Answer
Question 1:

3 sides of a fence which create a rectangle

x = the longer side (two of these)
x - 50 = the shorter side (one of these; the other is the river)

Total fencing used on the 3 sides that have fencing: 550

x + x + (x-50) = 550
3x - 50 = 550
3x = 600
x = 200
y = 200 -x = 150

x = Longer side of fence = 200
x - 50 = shorter side of fence = 200 - 50 = 150

Dimensions = 150m x 200m

Question 2:

x = computer 1
y = computer 2
x = 5.5y

x + y = 65

5.5y + y = 65
6.5y = 65
y = 65/6.5
y = 10

Total = 65
x + 10 = 65
x = 55


Question 3:

Alarm 1 = x
Alarm 2 = y

x = 2y + 4.29
x + y = 87.36

Substitute (2y+4.29) for x in that equation

2y + 4.29 + y = 87.36
3y + 4.29 = 87.36
3y = 83.07
y = 83.07/3
y = 27.69

This is the price of the less expensive one

x = 2y + 4.29
x = (27.69 x 2) + 4.29 = 59.67

I've got a hard decision to make. help?

In Hell

I will try to make a long story short. But you need some details though...
we've lived in this camper before we got this place we are in now. It was hell and we were so grateful to escape.

So, we HAD a nice place to live and everything is going fine when all of a sudden my fiance gets laid off work (i have a medical condition so i don't work in public, and can't seem to find a decent work at home job that isn't a scam.).

Now, we are not able to pay the rent at the end of the month so we have to leave. Our only option is to live in this 15' camper trailer that his dad has

The problem is, the only place to put it is on his dads property next to his cousins house. His cousin does not want us there because he is scared we will 'snitch' on him for his illegal drug use and trafficking. (i hate the guy and he hates me)

I do not want to live there because
#1 cmon, a 15 foot long camper?
[This is not ours, but it looks similar http://www.dougandjack.com/trailer.jpg ]

#2 His brother is the most idiotic, condescending, conceited asshole on the face of the planet. And we would have to do our laundry at his house.

#3 One day someone is going to open their mouths and he is going to get busted for all that drug sh i t. Then, we will not have a place to live. [ The county I live in, supposedly it's illegal to live in a camper trailer, because it is unsafe living conditions. A camper trailer is for camping trips lasting maybe a week. Not intended for everyday living. SO, when the cops come we will have to leave.]

#4 The unsafe living conditions:
Carbon monoxide exposure DAILY. the hot water heater emits a lot of it (we HAD a CO detector but someone stole it)
There is a propane leak
There is a water leak
The shower floor has cracks in it and the bathroom/shower is tiny.
There is no oven


So i am debating whether or no i should live under a bridge or just run away forever. Don't get me wrong, i love my fiance, but he keeps defending his dad and his cousin. [OK, so his dad keeps being an asshole because i don't have a job. He is mad at my fiance and wants him to get rid of me. We've tried to tell him about my condition but he thinks i am faking it. God i can't BELIEVE this guy...]


I'm going crazy and i need some kind of help. I talk to my fiance he says 'we have no choice...' i think that's bullshit. there has to be another way,.









Yes, this is a desperate cry for help if anyone has any advice or resources. I'm in Texas. We're already on food stamps and the local churches are exhausted of funds because of all the other people who are in the same boat we are.
....Plus there is a 2 year waiting list. there are so many people with my same problem that got there before i did. I couldn't possibly tell you what it's like to be me and live through the SH IT i have to live through. I have had jobs before, i'm not a deadbeat, i just need help.
Are you 18 or older? Yes.
Why are you living this way? Because i have looked for a solution. all solutions require money.
Where are YOUR parents? Other family? My mother made bad descisions when she was young and she has been in jail on and off since 1987, 3 years after i was born.
God, what a scam: what scam? did i ask for anything besides a suggestion? I didn't ask for money, or food, or a money order. God stop over analyzing sh it before you know the truth. You should really retire from yahoo answers if you are going to be like this.
i read the first answerer, and thank you for answering without being a smartass. as for the 2nd answerer it was a CO detector that WE bought and put in there. it is a 78 model camper. I never said we couldn't afford food. he JUST got laid off and the unemployment doesn't begin till towards the end of the month. we wont have the money in time. the internet is paid till the end of the month, same for the other bill except electric which is due the 30th.

Please God you don't have any children!: no, i am not that stupid. I wouldn't put my body through that nor put myself through having to work 2 jobs to support ungrateful kids.
What medical condition could you possibly have that keeps you from working in public?
:i have an anxiety disorder, depression and mental issues. I need help but we haven't had the $500 down payment that they want to see me and help me.
and bit ch I've lived in Texas since i was 6 years old, i am now 24. i have traveled all over the US and one thing i have found is there are silly laws all over the place. ones you wouldn't believe exist. Please take your smart - ass back to school and send your kids to a foster home. They will be much better off.
it looks like the 'additional details' are out of order.... i apologize if things seem odd. read the 2nd one first then the 1st one then the 3rd then this one ...lol <3 yahoo answers.

Answer
It is time to move. Looks, there are millions of people in Africa that are dying of thirst everyday and we send money to these people all the time to get them water and allow them to survive. All we really have to do is move them to water and solve the problem. Same thing here, only in another fashion. There are no jobs where you are. MOVE. Go somewhere that will accept you and help you out. If you have the medical condition you say you do, you should be able to get some relief from social security or another government organization. I know plenty of people that are OCD and have PTSD. They are actually fine people but can't hold a job for 5 minutes because of concentration issues. They get all sorts of government money. Secondly, your fiance should be able to find a job. Move to an area where the jobs are. I know my answer sounds too simple but look at it from all aspects. (Also, know that I am not against helping out the people of 3rd world countries, I just think there are better places and people that should have a whack at the billions of dollars spent out of our country before the homeless in our cities are overlooked.) Anyway, that is just my opinion. In a more complete answer to your question, do not move where you are being asked to live. It is a nice offer, but frankly the cousins need to see jail time, and the dad needs to say to his kid he loves him and all that rot, but he cares more for him then to force him into a camper. Good luck in whatever you do.

Powered by Yahoo! Answers