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Question 176944: I am not sure of my answer and I need to be sure. I got u = 16.666... Does that mean there is no answer if the problem reads:
5/3 = u/10
solve for u
Thank you for your help.

Click here to see answer by stanbon(75887)

Question 177204: what are the three kinds of proportion and their meanings

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Question 177891: for every 15 boys who atendend the program there were 10 girls. how many girls were there if there were 60 boys who atandend in program?
Click here to see answer by gonzo(654)

Question 177964: Does the problem seventy five eighty fifths equals fifteen sixteenths use a proportion?
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Question 178158: Along a certain highway, Pearl can average 100 miles in 1.5 hours
How long will it take her to drive 150 miles at the same rate?
Click here to see answer by Alan3354(69443)

Question 178288: Greetings:
My son asked me for help in resolving this: 3/16+11/15+7+12. I do not want you to resolve the equatiation just if you can point me with guides so i can refresh my memory. or websites that can show me how to understand and resolve this kind of problems I will appreciate it very much. Thanks
Click here to see answer by scott8148(6628)

Question 178330: 5/(x+3)-2/3=1
Click here to see answer by stanbon(75887)

Question 178372: Find the amount of markup or the amount of discount. Round your answer to the nearest hundreth.
$520surfboard; 20% discount
Click here to see answer by nerdybill(7384)

Question 178375: $15 leash; 50% markup
Click here to see answer by Mathtut(3670)

Question 178529: last month i wrote down the following facts while on my delivery job: i work 5 days a week for 8 hours a day, last month i worked 20 days, my truck gets 21 miles per gallon, i drive at an average speed of 45 miles per hour, i drive about 350 miles per day, gas cost $3.499 per gallon. how much did i spend on gas last month?
Click here to see answer by Mathtut(3670)

Question 178547: My shower is leaking at a rate of one drop per second.
A. how many cups of water per hour are being wasted?
B. how many gallons per week?
useful conversion; 1gallon = 4 quarts, 4 cups = 1 quart,
1 cup = 16tbsp, 1tbsp = 3tsp,
1tsp = 16drops.
Click here to see answer by Mathtut(3670)

Question 178717: please help me solve this equation
a/b=x/c
Click here to see answer by Alan3354(69443)

Question 178894: I am having a very difficult time trying to reach the solution to this problem.
I am to find the value of x:
x/x+5 = x-4/x
So far, I've crosses multiplied them and arrived at 2x = x+5(x-4).
Then, I foiled out the second part of the equation and got:
2x = x^2-4x+5x-20 and simplified that to 2x=x^2+x-20.
Now, I'm at a loss to do. Was I supposed to have foiled out the problem and if so, did I do it incorrectly?
I don't know how to solve for x at this point in the equation.
Click here to see answer by Alan3354(69443)

Question 179035: a car gets 30 miles per gallon.how many gallons would the car need to travel 90 miles?
Click here to see answer by Mathtut(3670)

Question 178954: 1= 3/X+2 + 1/X-2
how to do this using a lcd? There is not a text book for this question I am trying to help my son with ratios and fractions he is in algebra one.
Click here to see answer by solver91311(24713)

Question 179069: 5/6=7n+9/9
Click here to see answer by Mathtut(3670)

Question 179072: I greatly need your help. In trying to solve the problem. I found out that the hits are 25,000x24+110,000=710,000 hits. I'm having a hard time trying to set th prblem up as a proportions. Will you please help.
An administrator of a popular web site is told that a new faster server, which will replace the old server, can handle 45,000 "hits" (users accessing the site) per second. The web site currently experiences a peak demand of about 110,000 hits per second. But, every month, the peak demand increases by 2500 hits per second. Use a proportion equation to determine how many new servers the administrator should buy to address expected traffic for the next 24 months.
Click here to see answer by stanbon(75887)

Question 179097: A lawyer bills her client $300 per hour of service. If a client's case requires 17 hours to complete, use a proportion to calculate how much the client will owe the lawyer(excluding tax).
Click here to see answer by Mathtut(3670)

Question 179100: A new virus is released on the internet, the administrator of a departmetn's Lower Area Network(LAN) is given minutes by a manager to estimate the impact. AThe administrator samples 12 of the PCs connected to the LAN and finds that 7 are infected. Use a proportion to estimate the number of infected PCs if there are a total of 216 PCs connected to the LAN.
Click here to see answer by Mathtut(3670)

Question 179271: Solve by substitution or elimination method:
3x-2y=26
-7x+3y=-49
Click here to see answer by roberta022469(1)

Question 179273: Solve by substitution or elimination method:
4x-5y=14
-12x+15y=-42
Click here to see answer by Fombitz(32388)

Question 179272: Solve by substitution or elimination method:
-2x+6y=19
10x-30y=-15
Click here to see answer by Fombitz(32388)

Question 179347: Man made taffy apples. He used 1 lb of taffy for every 70.7 lb of apples. He made 17637 lb of taffy apples. How many lb taffy did he use? How many lb apples did he use? Round to nearest tenth.
Click here to see answer by Mathtut(3670)

Question 179374: I need help with this question.
Mr. Jacobs can correct 150 quizzes in 50 minutes. His student aide can correct 150 quizzes in 75 minutes. Working together, how many minutes will it take them to correct 150 quizzes?
Click here to see answer by Mathtut(3670)

Question 179230: I have to use two different types of milk (eg. Milk A & B)which have two different protein to fat ratios - in percents per 100 litre of milk.
In milk A, the protein to fat ratio is 3.3/ 3.85. = .857
In milk B, the protein to fat ratio is 4.3/ 2.50 = 1.72
What quantities of milk A and B should be used to get 6000 L of mix at a ratio of (protein/fat) = 1.05
If possible let me know the equation used for this
thanks
Click here to see answer by scott8148(6628)

Question 167798: Use a proportion to solve. Ben Hale is driving his new Toyota Camry on Interstate 90 at 45 miles per hour. He accelerates at the rate of 3 miles per hour every 2 seconds. HOw fast will he be traveling after accelerating for 11 seconds?
Click here to see answer by HyperBrain(694)

Question 180076: what is the probability of selecting a composite whole number from the whole numbers 2-15.
Click here to see answer by stanbon(75887)

Question 180297: Editor of school newspaper must reduce the size of a graph to fit one column.
Original is 2" x 2", and the scale factor from the original to the reduced graph is 8:3. Find the dimensions of the graph as it will appear in one column of newspaper.
I have tried: 2/8 2/3 = 1/4 . 2/3 = 3/8 ???? Please help.
Click here to see answer by stanbon(75887)

Question 180496: ok i got 3 questions since there is a daily 4 questions per day.
the slash "/" will indicate the fraction dash.
*there is no textbook involve*
3x-6/2-x = 3/2

8/z-2 = z+2/4

Click here to see answer by ankor@dixie-net.com(22740)

Question 180811: A liter bottle contains 43 grams of proteins. How many mg's of protein would a patient receive in an hour administrated at a rate of 60 ml/hr?
Click here to see answer by Mathtut(3670)

Question 181419: If you are finding proportions, then if it is a decimal, what would this answer be, and please explain how you got the answer, 67.2/g = 16.8/3.3
Click here to see answer by eperette(173)

Question 181454: i do not understand scales for pre algebra here is my question:

Actual size:30ft
drawing size: 6 inches
Click here to see answer by josmiceli(19441)

Question 181582: Use proportions to solve the following. the ration of Taylor's CD's to Dave's CD's is 7 to 8. If they have a total of 150 CD's, how many Cd's does Taylor have?
Click here to see answer by solver91311(24713)

Question 181778: the sum of the reciprocals of two consecutive even integers is 11/60. what are the integers?
Click here to see answer by checkley77(12844)

Question 181777: The sum of the reciprocals of two consecutive odd integers is 8/15 (which is a fraction). What are the integers?
Click here to see answer by user_dude2008(1862)

Question 182070: Ratio and Proportion Question
A cell phone company charges 0.25 cents a minute, a customer
was charged $15.75 for her monthly bill. How many minutes did
she use that month? Please show work.
Thank You!
Click here to see answer by checkley77(12844)

Question 182221: 5.7 gallons/hours = ____ cups/min?
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Question 182363: Ratio and Propertion
Sarah drives from Baltimore to Ocean City at an average speed of 65 miles per hour. If the distance is 160 miles, how long will the trip take? Thank you
Click here to see answer by Mathtut(3670)

Question 182610: How do I solve proportions? Ex: 7 over 3 is equal to 52 over n.
Click here to see answer by jim_thompson5910(35256)

Question 182697: Hi I.m Betty I was just online with I submitted a problem and was writing back to you my e-mail is bmurray0208@live.com sorry my power just clicked off for a second and I lost you. Hope I can continue where I left off. Here is the problem again.What percent of 12 letters is 4 letters? During his basketball season Jeff made 520 baskets out of 1280 attempts, What was his shooting percentage? Round to the nearest whole percent.
Click here to see answer by jim_thompson5910(35256)

Question 182924: 9. The area of a rectangle is 45 square cm. If the length is 4 cm greater than the width, what are the dimension of the rectangle?

Click here to see answer by Molly27(1)

Question 182924: 9. The area of a rectangle is 45 square cm. If the length is 4 cm greater than the width, what are the dimension of the rectangle?

Click here to see answer by checkley77(12844)

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