Questions on Algebra: Proportions answered by real tutors!

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Question 217169: A model airplane is to be an exact replica of the original, but at 1/50 the size. If the actual length of the airplane is 230 feet, how many feet long should the model be?
Part I: Set up a proportion that represents the problem situation. Let x represent the actual length in feet of the model airplane.

Click here to see answer by rfer(16322)

Question 217531: I dont understand how to work this problem..
9/n = 5 over 11/15
Click here to see answer by checkley77(12844)

Question 217622: A contractor agreed to pay a penalty if he failed to remodel a certain building within a specified length of time. The penalties for excess time were P400 for the first day and P100 additional for each succeeding day. If the total penalties was P27,000, how many excess days did he use in completing the job?
I dont have any idea on how to solve this....i hope you can help
Click here to see answer by rfer(16322)

Question 218474: How fast is 11 meters per a second in kilometers per hour?
Click here to see answer by drj(1380)

Question 218368: a 720 ml container hold a mixture of red, yellow and white paint at a 5: 3: 12 ratio. How much more red paint than yellow is present in the mixture.
a. 20 ml
b. 72 ml
c. 108 ml
d. 180 ml
e. 200 ml
Click here to see answer by rfer(16322)

Question 218863: This is a real question I need answered. I have 1 gallon of grape juice with 20% sugar content. I have another gallon of grape juice that has 68% sugar content. How much of the 68% sugar juice do I add to the 20% sugar juice to get a Juice that has 24% sugar content. Please help if you can.
Thanks,
Jim
Click here to see answer by RAY100(1637)

Question 219365: 2/3 = 4/x
Click here to see answer by rfer(16322)

Question 219477: How many square feet are there in a room 25 feet by 12 feet?

Click here to see answer by Earlsdon(6294)

Question 219477: How many square feet are there in a room 25 feet by 12 feet?

Click here to see answer by Alan3354(69443)

Question 219823: what is 12.5=0.8x

Click here to see answer by checkley77(12844)

Question 219963: Express ratio as a simplest fraction form
18 miles to 18 yards
Click here to see answer by rfer(16322)

Question 220217: 6 oranges 8 apples 4 bananas what is probabilty of banana 2/9?
Click here to see answer by solver91311(24713)

Question 220462: create a proportion from each set of numbers. only four numbers will be used 14,12,28,6,56 ____________=________
Click here to see answer by checkley77(12844)

Question 220653: The proportion of singers to dancers is 11:6. There are 66 total singers & dancers. How many dancers are there?
Click here to see answer by stanbon(75887)

Question 221449: The Taylor's plan to expand their 80 square foot garage by tripiling the dimensions. What will be the area of the new garage?
Applications of proportions
Thanks..Alex

Click here to see answer by drj(1380)

Question 222267: For a certain time period the ratio of the dollar value of
exports to the dollar value of imports for the United States
was 2 to 3. If the value of exports during that time period
was 48 billion dollars, then what was the value of imports?
Click here to see answer by rfer(16322)

Question 222371: The ratio of men to women at a certain company is to . How many employees does the company have if there are male employees?

Click here to see answer by stanbon(75887)

Question 222784: In the Dicovering Algebra: An Investigative approach, there is a question that says Find the value of the unknown number in each proportion? The problem is 52/91=42/s. So do i inverse it. Swich it up like this: 91/52=s/42? or keep it the same?
Click here to see answer by jim_thompson5910(35256)

Question 222804: In the Dicovering Algebra: An Investigative approach, there is a question that says Find the value of the unknown number in each proportion? The problem is 52/91=42/s. So do i inverse it. Swich it up like this: 91/52=s/42? or keep it the same?
Click here to see answer by Alan3354(69443)

Question 223200: is 7 over 9 = 21 over 18 a proportion

Click here to see answer by jim_thompson5910(35256)

Question 223228: 1. 12x-(4x+10)=54
2. you estimate that you spend $115 on groceries each month. how much money do you spend on groceries each week?
3. 8x-10(3-x)=42
4. 2/3(x+4)=8
Click here to see answer by rfer(16322)

Question 223297: (x-1)/3 = (x+1)/5
How do I solve this step by step?

Click here to see answer by checkley77(12844)

Question 224055: Having a problem with this proportion:
3/4 = (n+7)
(n+16)
thanks.

Click here to see answer by solver91311(24713)

Question 224078: Hi, I am really confused with my homework and my teacher won't help me so... My quesions is about of course Proportions and Dimensional Analysis. I sort of understand the proportions, but not the other one. Three of my problems are:
a.) 50 meters per second to kilometers per hour.
b.) 0.025 day to seconds. (Now this one I really don't understand)
c.) 1200 ounces to tons (16 oz=1 lb; 2000 lb=1 ton).
And here is one problem for a proportion question:
0.926 meter/1 yard = 20 meters/x yards.
Click here to see answer by solver91311(24713)

Question 224076: Hi, I am really confused with my homework and my teacher won't help me so... My quesions is about of course Proportions and Dimensional Analysis. I sort of understand the proportions, but not the other one. Three of my problems are:
a.) 50 meters per second to kilometers per hour.
b.) 0.025 day to seconds. (Now this one I really don't understand)
c.) 1200 ounces to tons (16 oz=1 lb; 2000 lb=1 ton).
And here is one problem for a proportion question:
0.926 meter/1 yard = 20 meters/x yards.
Click here to see answer by rfer(16322)

Question 224301: Use the formula for simple interest, I = prt. Find p if I = $262.09, r = 4.3%, and t = 3 yr
Click here to see answer by rfer(16322)

Question 224621: you are riding your bike. it takes 28 min to go 8mi. how long will it take you to go 15 mi
Click here to see answer by Alan3354(69443)

Question 224623: you are riding your bike. it takes 28 min to go 8mi. how long will it take you to go 15 mi
Click here to see answer by drj(1380)

Question 224846: Acorn woodpeckers live in families. The family memebers collect acorns and store them in trunks of tress.
Day number collected number eaten
Monday 23 8
Tuesday 29 10
Wednesday 42 9
Which expression best describes the information in the table if the family has stored X amount of acorns before Monday? Why?
a. x+ (-23) +8 (-29) + 10 + (-42) + 9
b. x + 23 +(-89) + 29 +(-10) + 42 + (-9)
c. 23 + (-8)+ 29 + (-10) + 42 + 9-9) - x
d. 23 + 8 + (-29) + 10 + (-42) + 9 x
Click here to see answer by LtAurora(115)

Question 225882: how many meters are there in 4 1/2km?
Click here to see answer by Alan3354(69443)

Question 225891: what is 3/4 divided by 1/4?
Click here to see answer by Alan3354(69443)

Question 225895: HOW MANY KG IS 3000G?
Click here to see answer by Alan3354(69443)

Question 225956: write in standard form the equation of the line with slope =-2 and passing through (4,1)
Click here to see answer by drj(1380)

Question 226125: A shoe store sells 4 pairs of black shoes for every 7 pairs of brown shoes. there were 4,900 pairs of brown shoes sold last year. how many pairs of black shoes were sold??
Click here to see answer by lashae_dee(2)

Question 226147: How would you convert 64 miles an hour into feet per second using proportions?
-Thanks
Click here to see answer by checkley77(12844)

Question 226498: Express the proportion 2:5=4:10 using fractions!!!! Could you please assist me?
Click here to see answer by solver91311(24713)

Question 226640: A giraffe can run 32 miles per hour. What is this speed in feet per second? Round your answer to the nearset tenth.
Click here to see answer by RAY100(1637)

Question 227860: y varies directly with x, y=65 when x=5. find y when x=12.
Click here to see answer by Theo(13342)

Question 229027: Bonnie & Tim do some yardwork for their neighbor. The ratio comparing the amount of time each one works is 7:4. The neighbor pays them $88. If Bonnie worked more, ow much should each of the recieve. In the margin is says that Bonnie made $56.00 and Tim made $32.00
Click here to see answer by stanbon(75887)

Question 229030: r-5/2=r+2/3
Click here to see answer by rapaljer(4671)

Question 229333: how do i do 40% of x is 28 what is x. i dont get it
Click here to see answer by Alan3354(69443)

Question 229417: What number increased by 15% is 230
Click here to see answer by drj(1380)

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