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#226 Re: Help Me ! » Algebra word problems » 2011-04-26 04:06:46

You have met them. You are that generous soul, who helps others.
Good morning, I am working on this stuff again today:

Word problem:
A couple wishes to rent a car for one day while on vacation. Ford Automobile Rental wants $19 per day and $0.14 per mile, while Chevrolet-For-A-Day wants $15 per day and $0.16 per mile.
After how many miles would the price to rent the Chevrolet exceed the price to rent a Ford?
The price to rent the Chevrolet will exceed the price to rent a Ford after ______miles.
(Simplify your answer. Type an integer or a decimal.)
Thank you!

#227 Re: Help Me ! » Algebra word problems » 2011-04-25 21:51:52

It is correct and that section is finished.
Let's call it a day and get rest. I will check in later today, have more to work on.
It is strange, but some people where I live, won't lift a finger to help a person and someone you do not know is a generous soul. Thank you again!

#228 Re: Help Me ! » Algebra word problems » 2011-04-25 21:28:57

Thank you. It did take, after I used their symbol box with their x. They are picky ones. LOL
Okay, lets do one more and call it a day. I am wiped out and you must be as well.
It's the Fortune 500 company.

Write the number (other than dates) mentioned in the following statements in scientific notation.
A Fortune 500 company projects revenues of 46,980,000,000,000 in each of the years 2003 and 2004.
46,980,000,000,000 = _____
Use scientific notation symbol. Use the multiplication symbol in the math palette as needed.) (theirs of course).

#229 Re: Help Me ! » Algebra word problems » 2011-04-25 21:02:58

They changed the other one.
The mass of the sun is 1.989 x 10^30 kg. and the mass of Pluto is 1.310 x 10^22 kg.
How many times larger in mass is the sun than Pluto?

The mass of the sun is ____times larger than the mass of Pluto.
(Use scientific notation. Round to the nearest thousandth.)

#230 Re: Help Me ! » Algebra word problems » 2011-04-25 20:36:11

It won't take the answer for some reason. Wonder what I did. I typed in 1.518 x 10^8. I have one try left.

If the above one gets solved, there is only one more problem in this section, then move to another that I have been working on today.
Here goes:
Write the number (other than dates) mentioned in the following statements in scientific notation.
A Fortune 500 company projects revenues of 46,980,000,000,000 in each of the years 2003 and 2004.
46,980,000,000,000= ______
(Use scientific notation. Use the multiplication symbol in the math palette as needed.)
Thank you. I hope this is not tiring you out.

#231 Re: Help Me ! » Algebra word problems » 2011-04-25 20:17:24

Look above. I edited it. LOL The numbers flipped over. It wanted it a certain way.

#232 Re: Help Me ! » Algebra word problems » 2011-04-25 20:09:24

Let's see, I clicked it in at 2 x 10^3, no take. I tried the 2000. Same. I must be typing it incorrectly.

Ok, the answer was correct, but it wanted it this way:
1.723 x 10^3.

It flipped numbers on the third one and now it's:

The mass of the sun is 1.989 x 10^30 kg and the mass of Pluto is 1.310 x 10^22 kg.
How many times larger in mass is the sun than Pluto?
The mass of the sun is ___times larger than the mass of Pluto.
(use scientific notation. Round to the nearest thousandth.)

#233 Re: Help Me ! » Algebra word problems » 2011-04-25 20:02:18

Another word problem.
The mass of Saturn is 5,688 x 10^26 kg and the mass of Mercury is 3.302 x 10^23 kg.
How many times larger in mass is Saturn than Mercury?
The mass of Saturn is____times larger than the mass of Mercury.
(Use scientific notation. Round to the nearest thousandth.)

I think there is only one more notation. I never cared much for them. LOL

#234 Re: Help Me ! » Algebra word problems » 2011-04-25 19:48:52

I was little and I remember everything about my family, for it was a happy time growing up. It was also nice having grandparents. I miss that.
Oh, I edited the other one to show that second part where it listed:
$130,000 = $___ (the notation one)

#235 Re: Help Me ! » Algebra word problems » 2011-04-25 19:43:48

Yes, trains are noisy. My daddy told me and my brothers that he hopped a train a few times when he was young.

#236 Re: Help Me ! » Algebra word problems » 2011-04-25 19:35:32

No, the train is gone. I always loved trains when i was a kid. I grew up and they sound eerie at night. There is one not far that goes through every night in the distance.

Edited to add the second part of that problem.

It lists $130,000= $_____
Use scientific notation same as the first part.

#237 Re: Help Me ! » Algebra word problems » 2011-04-25 19:30:25

Thank you!
Here's a word problem.
Write the numbers mentioned in scientific notation.

The average cost of construction for medium-sized office buildings is $10.6 million, while that for single homes is $130,000.

$10.6 million = S___

(use scientific notation. Use the multiplication symbol in the math palette as needed.)

Edited to add: It says it has a second part, not seen yet until the first part is solved.

#238 Re: Help Me ! » Algebra word problems » 2011-04-25 19:14:06

I think so. The two terms in the middle are 12rs + 15rs. (terms in the middle)
-20r^2 + 12rs + 15rs - 9s^2

I can hear a train whistle blowing in the distance. Sounds eerie.

#239 Re: Help Me ! » Algebra word problems » 2011-04-25 18:44:43

Thank you. These are really complicated.
Factor by grouping.
-20r^2 + 12rs + 15rs - 9s^2 = _____

#240 Re: Help Me ! » Algebra word problems » 2011-04-25 18:25:34

Thank you again.
Factor the greatest common factor from the polynomial.
4x^7 y^5 + 32x^5y^4 + 36xy____
Type your answer in factored form.

#241 Re: Help Me ! » Algebra word problems » 2011-04-25 18:04:12

Hi, it's me again.

Factor out the greatest common factor.

4x^4 - 28x^3 + 8x^2
The factorization is____

#242 Re: Help Me ! » Algebra word problems » 2011-04-25 17:39:00

Thank you, it is exact. I am off tomorrow, but that is not off for me. I have so many projects and homework due this week.
Multiply.
(6x + 1) (9x^2 + 4x + 2)
Simplify.

#243 Re: Help Me ! » Algebra word problems » 2011-04-25 15:35:50

Thank you. I will be here.
Factor the difference of squares.
a^4 -1

#244 Re: Help Me ! » Algebra word problems » 2011-04-25 15:15:47

It took it!!!!!! Thank you so much!
Making headway on these problems. You are exact on every one of them.
Factor the trinomial.
12s^2  + 11sd - 15d^2

#245 Re: Help Me ! » Algebra word problems » 2011-04-25 13:54:23

Thank you!
Factor the trinomial.
42s^2 + 17sd - 15d^2

#246 Re: Help Me ! » Algebra word problems » 2011-04-25 13:44:28

Thank you. Let me know when you are tired to think as I am. LOL
Factor the special product.
49a ^2 - 84a + 36

#247 Re: Help Me ! » Algebra word problems » 2011-04-25 13:28:54

Exact. Thank you!
Factor the polynomial using the method for factoring a perfect square trinomial. It may be necessary to factor out a common factor first.
18x^2 + 60xy + 50y^2

#248 Re: Help Me ! » Algebra word problems » 2011-04-25 13:16:04

Perfect. Thank you!
Factor the polynomial completely.
16r^2 + 56r + 49

#249 Re: Help Me ! » Algebra word problems » 2011-04-25 12:58:35

Yes, exactly. I did not know how to write it. It kinda hurts to think.

#250 Re: Help Me ! » Algebra word problems » 2011-04-25 12:47:14

Hello, I just got home. The day was long and the weather was hot. It is dark and I worked a lot of math and other classes today with more to go.
I feel like my head will explode before the break gets here.

Hope your day went well. I have algebra tonight. I hope you can help me; my brain is fried.
Factor completely.
a 2^ - 2a + 1 - 16f^2. ( that last part is sixteen f to the power of 2.)

Thank you.

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