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Word Problems: Unit Conversion

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Question 241156: What fraction of 2 cubic yards is 4 cubic feet?
Click here to see answer by ankor@dixie-net.com(6693)

Question 237585: If Jan can paint a house in 4 hours and Bill can paint the same house in 6, how long will it take for both of them to paint the house together...?
Trying to figure out how to set this one up, it should be simple and was thinking of converting into a fraction with a common denominator... but was sure if that was making it harder than it was ? thanks
Answer given is 2 hrs 24 mins just not sure how 2 get there....
Click here to see answer by nerdybill(2446)

Question 237387: I am having trouble will conversions and I was given this problem to solve. They give you a lot to go off of, but I don't know where to start or better yet what to start with. I assume it wont matter which unit you start with, but then I wasn't sure so here's the problem I was given:
"Kay wants to buy a new fireplace insert that will burn gas instead of wood. She normally uses two cords of wood in the winter. Wood costs $250/cord. She is interested in knowing how much she will save if she burns gas in the fireplace insert. Gas costs $0.70 per therm. One therm is 100,000 BTU. The fireplace insert burns 33,000 BTU per hour. Kay figures she will burn the fireplace 5 hours per day for 120 days. How much will she save in one winter if she burns gas instead of wood?"
It seems like you have to do a lot of conversions, but is there a simpler way to do it or do you have to do every conversion they listed? If anyone has an idea on how to solve this that would be very much appreciated!
Click here to see answer by ankor@dixie-net.com(6693)

Question 237388: Okay so I have this problem that I believe I know how to do, but the only problem is that I don't know how I would convert miles to a year. That was where I was really stuck. Here's the problem:
"Sommer wants to buy a new car. She currently drives a car that gets 30 miles per gallon. She is contemplating buying a car that get's 40 miles per gallon. Sommer drives 15,000 miles per year. Assume that gas costs $1.65 per gallon the entire year. How much will Sommer save on gas in 1 year if she buys the new car?"
I know the question is to find the money amount for how much gas is saved, but then that's also another problem I have is how to find that. If anyone knows how to go about solving this problem or setting it up, please let me know! Thank
you so much!
Click here to see answer by josmiceli(3009)

Question 232119: Hi and thanks for being available to answer boggling math questions.....you are appreciated.
Here is the question:
How many teaspoons are in an ounce?
Click here to see answer by ankor@dixie-net.com(6693)

Question 230706: 2x^2z^8*4z^5*4x
Multiply.
Would this be 32x^3z^13 by any chance????
Click here to see answer by Earlsdon(4900)

Question 230697: (a3/-2b2)2 The 3 and the second 2 after the b and the 2 outside of the ()'s are 'to the power 2's I do not no how to this problem at all.
Simplify your answer without parenthesis.
Click here to see answer by stanbon(26280)

Question 230694: The surface area S of a right prism is given by
S=2B+Ph,
where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.
Solve for h.
Sorry Stan I did not put the h in the last question.

Click here to see answer by stanbon(26280)

Question 230449: The surface area of a right prism is given by
S=2B+ph
where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.
Solve for .
WIll someone please help me with this one. I do not no how to start this one.

Click here to see answer by stanbon(26280)

Question 230457: -2x+1=3(x+2)
Solve for x and simplify. HELP this is the last one.
Click here to see answer by texttutoring(36)

Question 229149: The average distance between the earth and the sun is 93 million miles. Using the velocity of light, find an approximate value for the amount of time it takes a light ray to travel from the sun to the earth. Please help and thank you.
Click here to see answer by ankor@dixie-net.com(6693)

Question 228962: Hi all I have been doing pretty good lately Until Now!!
I need help with writing the problem in a simplified radical form.
Assume that all variables represent positive real numbers. And I have no idea how to write the v------- type thing.
Except it is a solid line and not quite a v at the begining. Does anyone no what I am talking about? Square root symbol maybe?
These are under the line of the 'square root symbol" there is nothing on the left side of the symbol. And the 11 and the 2 are 'to the power numbers.'
12t11 u2
I have no idea if anyone will even understand this but if you do please help me.
Thank you very much!!

Click here to see answer by ankor@dixie-net.com(6693)

Question 227871: mrs. cuylle's backyard is a rectangle 12m long by 10 m wide. for exercise mrs.cuylle walks around the outside of it. how far does he walk in 1 trip around?
Click here to see answer by rfer(2688)

Question 227388: I make my fractions like this: ??/?? with the slash in the middle and all on one line. Solve the equation.Can you help me with these 2 problems?
-3/x=x/3
I do not no how to solve these correctly. Can someone please show me how to do these correctly??? I really need to pass this course, and I need all the help I can, so it would be much appreciated!!! Thanks!!
2/x-3 + 3/3-x

Click here to see answer by ankor@dixie-net.com(6693)

Question 225721: Reduce the following rational expression to its lowest terms:
20u2y5/15y3z6-10y4
The only numbers that are whole numbers are the 20 and the 15. The others are 'to the power' numbers. I have absolutely no clue how to do this one please help. This is a fraction. a very big fraction. I hope no one thinks I am a total retard I am just awful with math problems!! Sorry!!!!
Click here to see answer by ankor@dixie-net.com(6693)

Question 225722: This is the last one. u2 - 13u + 40/3u2 - 33u + 90 This is one big fraction again. the 2's after both u's are 'to the power 2's" Again I just do not no where to start.
Click here to see answer by LtAurora(115)

Question 172355: Getting frustrated on figuring out the answer for the following/would someone please help me? Thank you.
1.A local caterer charges $8.50 per person to serve boxed lunches at meetings on campus, plus a $15.00 delivery charge for each event. Using L for the number of lunches served and D for the number of events delivered to, set up an expression that can be used to track catering costs.
Is the answer Catering cost=8.50L +15.00D

2. Using the expression created in previous question, calculate the total cost to have a total of 33 lunches delivered to campus; 15 to a Monday meeting and the remainder on Wednesday.
is the answer $142.50+ $168.00 ?

3. A room that measures 18 feet by 24 feet will require how many square yards of carpet to cover the floor? (If necessary, round to the nearest yard.)
is the answer 18*24 ?
4. Which has a larger engine; my vintage Chevy SS (displacement of 327 cubic inches), or my daughter's newer Mustang (displacement of 5.0 liters) ?
?

Click here to see answer by LtAurora(115)

Question 225155: Solve the following proportion for x .
Now how do i go about doing this one?? These are fractions by the way. Is this where i have to find a least common denominator then what???
3/17 = x/12

Round your answer to the nearest tenth.
Click here to see answer by ankor@dixie-net.com(6693)

Question 225144: Find all values of y satisfying the equation.
-_7___ _3__
y + 1 = -4 - y-4
Both have minuses before the fractions and the last one has a -4 before it as well. Help.
(If there is more than one solution, separate them with commas.)
Click here to see answer by ankor@dixie-net.com(6693)

Question 225142: _5_
t+5 = -6
OK I am totally confused on this one. This is a fraction and I have to solve for t.
Click here to see answer by ankor@dixie-net.com(6693)

Question 225158: Solve the following proportion for :

Now this one i am not at all sure of where to start.
Click here to see answer by LtAurora(115)

Question 225161: A machine produces 150 bolts in 20 minutes. At the same rate, how many minutes would it take to produce 195 bolts?
HELP PLEASE!!!!
Click here to see answer by ankor@dixie-net.com(6693)

Question 225162: Hi all I am having some problems with my math class I am taking now, but so far I only have one word problem that is giving me grief can someone please help me??
There are 480 dishes that need to be rinsed. John can rinse them in 120 minutes by himself. It will take his friend Bob 80 minutes to rinse these dishes. How long will it take them if they rinse these 480 dishes together?

Click here to see answer by Alan3354(6089)

Question 225169: __-2x_ -_ 8___
x2 + 2x -8
OH No here is another I found that i cannot do. -2x-8 is on the top and x2+2x-8 the 2 next to the x is to the power type of 2 nota normal 2 ok? I hope i am not confusing anyone!! Thank you for your help i appreciate it a lot!!!!!
Click here to see answer by Alan3354(6089)

Question 225138: 4/t = -8 solve for t. Would this be -32?
Click here to see answer by Alan3354(6089)

Question 224482: Near the surface of a distant planet, the acceleration due to gravity is 26 feet per second squared (26ft over sec squared) express this using unit analysis in miles per square minute. Round answer to tenths place.
Click here to see answer by ankor@dixie-net.com(6693)

Question 224407: A projectile is fired upward from the ground with an initial velocity of 571 feet per second. Assume that the height of the projectile at any time t can be desceibed by the polynomial function P(t)=-16t2(squared) +571t. Find the height of the projectile at each given time.
3 seconds?
6 seconds?
10 seconds?
12 seconds?
Explain why the height changes as time passes.
Click here to see answer by Alan3354(6089)

Question 224001: _8uz_ 5u__
3u . 6z Of course these are supposed to be fractions and the 'dot' is supposed to be in the middle of the equation. Can someone please help me with this one. The "dot" means to multiple correct? Or is that wrong too?
Click here to see answer by ankor@dixie-net.com(6693)

Question 223854: If a man 6 feet tall cast a shadow of four feet long, how long a shadow will be cast by a cell tower that is 75 feet tall?
Click here to see answer by rfer(2688)

Question 223854: If a man 6 feet tall cast a shadow of four feet long, how long a shadow will be cast by a cell tower that is 75 feet tall?
Click here to see answer by checkley77(7060)

Question 223711: the sum of of four times a number and three is the same as the difference of twice the number and eleven.find the number
Click here to see answer by drj(1380)

Question 223291: Factor each polynomial completely. a2b + 2ab - 15b The 2 between the first a and b is a to the power 2, for some reason I cannot make them into the little number they are supposed to be, I hope you do not think i am an idoit because of that. I am an idiot in math too!! Please can someone show me how these are supposed to be done the right way? Thank you!
Click here to see answer by checkley77(7060)

Question 223267: Hello can someone please explain and help me with this problem? Do I have to put the a's together? No? Help!! Thank you!

Factor out the GCF in each expression a(a + 1) - 3(a +1)
Click here to see answer by scott8148(3382)

Question 223281: Factor each polynomial completely. 3x3y2 - 3x2y2 - 3xy2 Each first number 3 is a regular number 3 the rest of the numbers are "to the power" numbers. I really need this one explained to make sure I will get the rest of them right please and thank you!!!
Click here to see answer by scott8148(3382)

Question 223282: Factor each polynomial completely. 3x3y2 - 3x2y2 - 3xy2 Each first number 3 is a regular number 3 the rest of the numbers are "to the power" numbers. I really need this one explained to make sure I will get the rest of them right please and thank you!!!
Click here to see answer by scott8148(3382)

Question 223283: Factor each polynomial completely. 3x3y2 - 3x2y2 - 3xy2 Each first number 3 is a regular number 3 the rest of the numbers are "to the power" numbers. I really need this one explained to make sure I will get the rest of them right please and thank you!!!
Click here to see answer by scott8148(3382)

Question 223284: Factor each polynomial completely. 3x3y2 - 3x2y2 - 3xy2 Each first number 3 is a regular number 3 the rest of the numbers are "to the power" numbers. I really need this one explained to make sure I will get the rest of them right please and thank you!!!
Click here to see answer by scott8148(3382)

Question 223280: Factor each polynomial completely. 3x3y2 - 3x2y2 - 3xy2 Each first number 3 is a regular number 3 the rest of the numbers are "to the power" numbers. I really need this one explained to make sure I will get the rest of them right please and thank you!!!
Click here to see answer by scott8148(3382)

Question 223276: x3 + ax + 3a + 3x2 The first 3 and the last 2 are the 'to the power numbers' I just cannot shrink them like they should be Sorry.
Please show me how this problem is supposed to be done correctly please.
Use grouping to factor each polynomial completely.
Click here to see answer by scott8148(3382)

Question 222129: 5.2ftx30.48cm/ft=?cm
what is the equivalent of 5.2ft in centimeters
Click here to see answer by rfer(2688)

Question 221654: I have another problem that i do not understand. Help please! 5w2-18w+9 of course the 2 after the w is supposed to be a little tiny 2 a bit above the w. Thank you for your help.
Click here to see answer by stanbon(26280)

Question 221647: HI everyone long time no see. I am currently having problems with factoring at school.
Here is the problem i have to factor W2+10w+16 of course the 2 after the W is to the power of type of 2. How is this done? Why is there a capital W and a little one too w? Please help me figure this one out please and thanks.
Click here to see answer by stanbon(26280)

Question 221629: Factor Z2-3z-18 and 5z2+17z+14 Both the "2" next to the z's are supposed to be the to the power kind of two;s but have no idea how to make them. Can someone please explain to me how to factor?????????
Thanks
Deb
Click here to see answer by sofiyac(28)

Question 220056: she puts half of her books in one large box,one fourth of her books in another box,eight books on the floor of the back seat,and the remaining five books on the floor in the front seat.How many books did she take back to college with her?
Click here to see answer by rfer(2688)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360