Tutors Answer Your Questions about Proportions (FREE)
Question 22865: Hello, Lavalle Williams
I need help with a problem or two. Please Help
1. If you have 20% ointment and 5% ointment, how many grams of each would you need to make 1 lb of 10% ointment?
2. How many milliequivalents of calcium are in a tablespoonful of a solution containing 250 mg of calcium chloride (CaCl2)? (AW of Ca++ = 40; Cl- = 35.5)
Click here to see answer by venugopalramana(3286)  |
Question 22864: This is Tim Hunt again.
I am confused about one of the questions you helped me with.
1 tablespoonful qid (four times a day) for 3 days (4 X 3) = 12 tablespoonsful.
1 Tablespoonful = 15 ml approximately. Perhaps your PDR has the exact conversion factor for this but I think it's more like 14.7868 ml per tbsp.
12 tbsp = 180 ml approximately.
12 tbsp = 177.4412 ml more precisely.
How did you get 14.7868
I know 12 x 15 = 180
and how did you get 177.4412?
Please help
Click here to see answer by Earlsdon(6294) |
Question 22931: Hello, I need some help.
1. How many milliliters per hour would be required to infuse a dopamine dose of 5 mcg/kg/min to a patient weighing 220 lb. If the dopamine is provided by a bag containing 800 mg/500ml?
Click here to see answer by rapaljer(4671)  |
Question 21853: How do I find the scale factor for this problem?
On a "map" the ocean is 120ft deep,1"=20ft
What is the length and the scale factor?
I believe that the length on the "map" is 6"
Thank you for any help!!
Click here to see answer by rapaljer(4671) |
Question 22930: Can someone help me with these problems I am so confused.
1. How many milligrams of zephirin chlorde are needed to prepare 3 L of 1:30,000 solution.
2. How many milliliers of a drug would be needed to provide a 10,000 mcg dose from a vial containing 0.1 g/10 ml?
3. An order is received to administer 5 mEq of potassium acetate per hour. The bag of I.V. fluid contains 30 mEq per liter. How many drops per minute would be needed to provide the prescribed dose using a set that delivers 15 gtts/ml?
Click here to see answer by stanbon(75887) |
Question 22930: Can someone help me with these problems I am so confused.
1. How many milligrams of zephirin chlorde are needed to prepare 3 L of 1:30,000 solution.
2. How many milliliers of a drug would be needed to provide a 10,000 mcg dose from a vial containing 0.1 g/10 ml?
3. An order is received to administer 5 mEq of potassium acetate per hour. The bag of I.V. fluid contains 30 mEq per liter. How many drops per minute would be needed to provide the prescribed dose using a set that delivers 15 gtts/ml?
Click here to see answer by rapaljer(4671) |
Question 22930: Can someone help me with these problems I am so confused.
1. How many milligrams of zephirin chlorde are needed to prepare 3 L of 1:30,000 solution.
2. How many milliliers of a drug would be needed to provide a 10,000 mcg dose from a vial containing 0.1 g/10 ml?
3. An order is received to administer 5 mEq of potassium acetate per hour. The bag of I.V. fluid contains 30 mEq per liter. How many drops per minute would be needed to provide the prescribed dose using a set that delivers 15 gtts/ml?
Click here to see answer by longjonsilver(2297)  |
Question 23905: Acording to doctors, a healthy diet should follow the ratio for meat to vegetables of 2.5 servings to every 4 servings. If you eat 7 servings of meat a week, how many servings of vegetables should you eat?
Click here to see answer by Paul(988) |
Question 23904: It has been found that the distance from a persons eye to the end of the fingers of his out reached hand is proportional to the distance between his eyes at a 10:1 ratio. If the distance between your eyes is 2.3 inches, what should the distance from your eye to your outstrecthed fingers be?
Click here to see answer by Sridi(6) |
Question 21467: hello, I have a story problem I could use some help with if you have time, A bag contains 6 red marbles, 9 blue marbles, and 5 green marbles. You withdrew one marble, replaced it, and then withdrew another marble. What is the probabilty that you do NOT pick 2 green marbles?
Click here to see answer by venugopalramana(3286) |
Question 24667: Please help me solve this problem:
A shoe store sells 4 pairs of back shoes for every 7 pairs of brown shoes. There were 4,900 pairs of brown shoes last year. How many pairs of black shoes were sold?
Thank you!!!
Click here to see answer by stanbon(75887) |
Question 25348: 1 when the sum of 1/4 and 1/2 is divided by the product of 1/4 and 1/2 what is the quotient?
2 a pattern of pentagons and hexagons in a ratio of 3 to 5. If there are 12 pentagons how many hexagons are in the pattern?
Click here to see answer by askmemath(368) |
Question 25344: Please show me how to do this! Thank you!
If a 30 oz can of lemonade drink mix makes 8 quarts, how much mix is needed to make 10 quarts of drink?
i know how to set it up but i don't know how to round the anwser to the nearest hundreth when neccessary
Click here to see answer by Earlsdon(6294) |
Question 26315: I cant seem to figure out how to write this proportion for the word problem:The length of a rectangular garden is 3/2 its width. It takes 50 m of edging to create a border. Find the dimensions of the garden.
Thank you so much!! If know how to write the proportion I'm sure I can figureout how to get the answer. Thanks again!
Click here to see answer by stanbon(75887) |
Question 25364: 32 over 27 equals x over 15. do u no the answer
13 over n equals 10 over 6. do u no the answer
a map has a scale of 7 cm represisents 8 km. which proportion would not allow u to find the actual distance between two cities if they are 9 cm apart on the map?
which of the following fractions has the greatest value.
22over21 20over13 19over20 28over37
by the way i need to explain how i got all of these answers
Click here to see answer by uknouluvme89(30) |
Question 25978: the taylor family has a turnout of 38 people. they decidedd to go ice skating instead of having a picnic. admission for the group cost $134.00. How many adults and how many children were at the reunion?
prices
adults 4.00
kids 3.00
Click here to see answer by stanbon(75887) |
Question 26677: This Question is hard to understand please help????
An internet company sells CD's for $10 and cassettes for $8. In one hour they sold eight times as many Cd's as cassettes. If their sales totaled $704, how many of each type did they sell?
my answer: 704-10x-8c 10(88)-8c
8-1= $88
704/88=8
10 Cd's and 8 cassettes.
could you please explain to me what I'm doing wrong????????????????????????????????????????????????????????????
Click here to see answer by Paul(988) |
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