Questions on Algebra: Proportions answered by real tutors!

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Question 114182: Find the unit rate.
3.186 words/3 min
Any help with this equation would be Greatly appreciated.
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Question 114684: Paul invested $5000 in a time deposit. What interest will he earn for 1 year if the interest rate is 6.5%?
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Question 114693: 2h-6=2
_____ _
6 3
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Question 115123: I am not sure if this is the correct place for this and I do not understand it at all. Can you help please. Thanks so much for your time.
Evaluate 66 ft/s times 1 mi/5,280 ft times 3,600 s/h.
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Question 115177: a forest contains about 500 trees. You randomly pick 67 trees and find that 27 of them are oaks. What is the experimental probability that a tree in the forest is an oak?
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Question 115712: 6x^2-13x-63=0
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Question 116565: In the formula V = lvh, find l when 2=4 inch., h = 6 inch., and V = 144 cu. in.
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Question 116565: In the formula V = lvh, find l when 2=4 inch., h = 6 inch., and V = 144 cu. in.
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Question 116620: A quality control inspector found flaws in 13 out of 150 sweaters.

Here is the question: Find the probability that a sweater has a flaw. How many will not have flaws.

Whoever solves this thanks!!!!
Click here to see answer by stanbon(57219)

Question 116619: A quality control inspector found flaws in 13 out of 150 sweaters.
HERE IS THE QUESTION: Suppose the company produces 500 sweaters a day. How many will not have flaws?

Thanks you so much whoever solves this!!!!
Click here to see answer by stanbon(57219)

Question 117310: Please explain how to do this whith ratios.; my problem is this:attendence at the concert was 480. the ratio from adults to kids was 5/3. how many kids were there?
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Question 117460: Mrs.Benedict offers extra credit when she gives a math test. She writes the first 5 prime numbers on 5 separate cards and places them in a box.Students are permitted to draw one card to determine their extra credit when the test is finished. The cards are replaced after each student draws. What is the most extra credit a student can receive on a test? What is the probability of drawing that card?

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Question 118035: I been trying to slove this for two days and all I can come up with is how I cross multiply, Well this is the problem n/5=7/4 what I got so far was 35 when I cross multiply. the answer is 8.8 Im thinking I have to divide and when I did I divided 4 into 35 and got 8. if you can please show me how to get the answer dont slove it for me. I have alot of homework in this and I would like to know how to do it.

Thanks.
Click here to see answer by ankor@dixie-net.com(15624)

Question 118263: This question is very hard and I get it wrong everytime so I hope you can help.
A 90-foot tall lakefront hotel casts a showdow on the water.
How long is the shawdow if a nearby 10-foot tall basketball hoop casts a 7-foot shawdow?
PLEASE RESPOND AND THANKYOU!
Click here to see answer by TP(29)

Question 118598: Mindy left at 8 am and will arrive at 1 pm. Kelly left at 8 am and will arrive at 2 pm. How many miles is the trip if Kelly is traveling 10 mph slower than Mindy?
Click here to see answer by josmiceli(9649)

Question 118737: This question is really hard and I need a lot of help!

Researchers marked and released 36 pike in a pond. Later they counted 20 pike, 12 of which were marked. Estimate the pike population. See I got the answer 60 is that right or am I wrong?
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Question 118780: a car travels 150 km on 12L of gasoline.how many liters of gasoline are needed to travel 1500km?
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Question 118789: a loading crew estimates that it can load 8 boxes in 20 mins.at this rate,how many boxes could it load in 1 hr?
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Question 118827: If 4/x = 5/3, then x =
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Question 90268: x/3-7=x/3
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Question 119066: 3 = 1

9p
2p + 5

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Question 119037: On the written portion of her driving test, Sara answered 84% of the questions correctly. If Sara answered 42 questions correctly, how many questions were on the driving test?
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Question 119067: 7/2=R/R-15
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Question 119219: im doing homework in pre-algebra and i am not sure if it is proportions the book doesnt say but the problem is -10=-2b and it says you have to find the value of "b" but i cant figure out how
Click here to see answer by jim_thompson5910(28476)

Question 119515: Hi I have a question that I do not understand how to do. Would anybody please help me?

Use a proportion to estimate each population:

total deer counted: 64
tagged deer counted: 24
total deer tagged: 64

Can anybody explain how to answer this question please?Thanks
Click here to see answer by stanbon(57219)

Question 119559: the hieght of a triangle is half the length its base. the area of the triangle is 12.25 cm.what is the hieght.i was absent the day my teacher was teaching it and now she is absent.please show me what i need to do
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Question 120054:

1. divide(3a+4b)(5c-10d)by5(a+b)(c-2d)

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Question 120053: 1. how many tils 10 cm square do you need to cover a room 2m by 3m?
2. if there are 6 tutors and 42 students, what is the ratio of staff to students?

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Question 120052: if there are 6 tutors and 42 students, what is the ratio of staff to students?

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Question 120106: 15/20=x/4

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Question 120361: Two men, A and B, can paint a house in 8 days. A alone can paint it in 12 days. How long will B take to paint the house by himself.
I am unsure on how to solve this. All I know is that there is some formula to this that involves many proportions. Please help!
Click here to see answer by ankor@dixie-net.com(15624)

Question 120599: i need help with this problem!! The ratio of Alex's cycling speed to Bart's cycling speed is 6:5. Bart leaves school at 3:00 pm and alex leaves at 3:10 pm. By 3:30, Alex is only 2 km behind Bart. How fast is each boy going? PLEASE HELP!!! I AM SORRY IF THIS ISN'T ENOUGH INFO, BUT THAT IS ALL THAT IS IN THE BOOK!!!!!!
Click here to see answer by scott8148(6628)

Question 120601: need help with this problem!! The ratio of Alex's cycling speed to Bart's cycling speed is 6:5. Bart leaves school at 3:00 pm and alex leaves at 3:10 pm. By 3:30, Alex is only 2 km behind Bart. How fast is each boy going? PLEASE HELP!!! I AM SORRY IF THIS ISN'T ENOUGH INFO, BUT THAT IS ALL THAT IS IN THE BOOK!!!!!!
Click here to see answer by scott8148(6628)

Question 120661: solve for x:
x over 60 =3 over 20
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Question 120667: Willis scores an average of 7 foul shots out of every 10 attempts. At the same rate how many shots would he score in 200 attempts?
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Question 120720: A set of rectangles consists of exactly one rectangle of each possible size such that for each rectangle the area is 24 and the length and width are integers.
Find the proportion of the rectangle in the set that have the perimeter greater than 25?
I don't know how to approach this
Thanks
Click here to see answer by ankor@dixie-net.com(15624)

Question 120669: A train traveled 90 miles in 1in a half hours. At the same rate, how long will take the train to travel 330 miles?
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Question 120671: A house that is assessed for 12,00 pays $960 in realty taxes. what should be the realty tax on a house that is assessed for $16,500?
Click here to see answer by checkley71(8403)

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