Questions on Algebra: Proportions answered by real tutors!

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Question 811372: The scale on a map is 1cm : 7km. If two cities are 10cm apart on the map, what is the actual distance between the cities?
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Question 811544: I need help with this proportion I have 9 other problems like this
7/9=b/b-10

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Question 811714: At the beginning of a basketball season, the Panthers won 33 games and lost 55 games. At this rate, how many games will they win in a normal 100-game season?
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Question 811821: the scale on a map says that 2 inches equals 150 miles. If two cities are actually 325 miles apart, how many inches apart will they be on the map?
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Question 811826: The scale on a map says that 2 inches equal 150 miles. If 2 cities are actually 325 miles apart, how many inches apart will they be on the map?
answers available are
1) 3 1/4
2) 4 1/3
3) 5 7/8
4) 7
5) 15

Click here to see answer by josgarithmetic(39617) About Me 

Question 813458: The acute angle of a right triangle, are in the ratio 2:3. How many degrees is each angle?
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Question 813458: The acute angle of a right triangle, are in the ratio 2:3. How many degrees is each angle?
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Question 814589: Find the ratio of an angle to its supplement if it is 15 degrees more than twice its supplement?

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Question 815272: if 135 people cross a street in 40 minutes, how many cross it in 60
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Question 815335: ok so we have to do a recipe project but the ingredient is 1/3 cups of cocoa powder over 8 serving the servings need to be increased to 30 and i need to find what x equals if you have a 1/3 over 8 servings and x over 30 serving how do you you do it with fractions i know how to do with like 150 over 8 serving and x over 30 but not fractions
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Question 799521: A rectangle has an area of 48 in.². Every dimension of the rectangle is multiplied by a scale factor and the new rectangle has an area of 12 in.². What was the scale factor?
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Question 816228: the average credit card debt for college seniors is 3262 if the debt is normally distributed with a standard deviation of 1100 find the probability that the senior owes between 2000 and 4000
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Question 816859: "In November 2005, the exchange rate of Canadian dollars to U.S dollars was 1 to 0.85. A Canadian citizen paid $12.28 in U.S dollars for lunch while visiting New York City. If the exchange rate were 1.28 Canadian dollars to 1 U.S dollar, what would the cost have been in Canadian dollars?"
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Question 818127: Im not really sure what type of algebra equation this is...Its just come up for work a few times and maths was always my weakest point.
if 1 person works a full week it equals 38 hours
if person 2 works .13 of a week how many hours are they working?
If this is solved that would be great and to also know the equation so I could do it again.
Cheers.

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Question 818376: A family paid $19,800 as a down payment for a home. If this represents 12% of the price of the home, find the price of the home.
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Question 819562: What' is the solved proportion for 20/x = 5/11
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Question 819565: 26% as decimal number
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Question 819570: 1/20 as a decimal
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Question 819567: 80% of 50
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Question 819586: A printer is normally $129.99 but is discounted to $97.49. What percent of the original price does hank pay. The question itself is very clear but how to set up the formula and plugging in the numbers is the confusing part.
This is based on rates and proportions

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Question 820010: The ratio of men to women working for a company 7 to 5 . If there are 264 employees total, how many women work for the company?
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Question 820349: if 1000 g of sugar cost Rs 60 how much does 100g cost
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Question 820688: Hello,
Can someone please explain how to solve the following?
15 ounces of concentrate is mixed with 45 ounces of water to make 60 ounces of orange juice. What percent of the orange juice is concentrate?
Thanks.

Click here to see answer by TimothyLamb(4379) About Me 

Question 820957: (f+3)/12=7/2
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Question 820982: Explain what it means when a fraction comparing the number of boys in a class to the number of girls in the class is greater than one
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Question 820958: 5/2n=8/3n-24
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Question 821066: Maurice is building a 2 ft tall model of the Gateway Arch in St.
Louis, Missouri. If he is using a 3 in:78.75 ft scale, how tall is the actual arch?

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Question 821192: a hardware store sells 384 oak doors per year. the ratio of oak to pine doors is 6:2. write and scale proportion to find the number of doors sold each year
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Question 821216: What is 37.5% of 8 ?
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Question 821216: What is 37.5% of 8 ?
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Question 821693: A bag contains 20 marbles ,5 which are damaged
a)Find the probability that a marble drawn at random is damaged.
b)A damage marble is drawn from the bag and not replaced .Find the probability that the next marble drawn is also damaged

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Question 822041: a goat eats 214 kg of hay in 60 days, while a cow eats the same amount in 15 days. In how many days would they eat 214 kg of hay together.
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Question 822441: Please solve a over thirty six equals three over eight :)
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Question 822913: 16 over 75 equals 144 over x. what is x?
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Question 822916: 7 over x equals 8 over 9. what is x?
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Question 822914: 8 over 48 equals x over 64. What is x?
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Question 823064: Two towns are 3240 miles apart. On a map the distance is 18 inches. What s the scale of the map?
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Question 823120: The class average on a test was 81, with a standard deviation of 2.6. Find the probability that a student received at least a 78 on the test.
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Question 823245: I have a really big test tommrow and I was not in this school for 2 months, because I just moved here so I don't know a lot of this. Can you help me with proportions please. The problem is 3/6=x-3/8
Click here to see answer by jim_thompson5910(35256) About Me 

Question 823537: hi my name is favor and i need help with these questions : $6.50 and 5% tax., $34.50 and 6% tax. thank you for coming to help me bye.
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Question 824163: [ The distance between two places in a map of 1: 2,500,000 scale is 8 cm. Then the actual
distance between the two places is:
(a) 200 km (b) 300 km (c) 100 km (d) None ]

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Question 824217: find three numbers in continued proportion such that their sum is 14 and sum of their squares is 84.
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Question 824238: Solve for the variable in the following proportion.
1/4 is to 1 1/4 as 2 is to b
b=

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Question 824357: If 5 is added both to the numerator and denominator of a fraction, the result is equivalent to 3/4. If 3 is subtracted from both numerator and denominator of the original fraction, the new result is equivalent to 1/4. Find the orginal fraction.
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Question 822924: Simplify this algebraic fraction please,
25x^4 y /( 10xy-15xy)

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