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Algebra: Proportions

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Question 201295: If the ratio of the corresponding diagonals of two similar figures is 4 : 9 ,then what is the ratio of their perimeters?
Click here to see answer by RAY100(1637)

Question 201539: Listed below are 5 functions each denoted g(x) and each involving a real number
x
constant c>1. If f(x)=2 , which of these 5 functions yeilds the greatest value for f(g(x)), for all x>1?
A. g(x)= cx
B. g(x)= c/x
C. g(x)= x/c
D. g(x)= x-c
E. g(x)= log x
Click here to see answer by jsmallt9(590)

Question 202448: The distance traveled at a constant speed is directly proportional to the time of travel. If Olivia traveled 112 miles in 3.5 hours, how many miles will Olivia travel in 8.9 hours at the same constant speed?
Click here to see answer by rfer(2688)

Question 202910: Albert Pujols is hitting 351 home-runs in 4885 at-bats. Alex Rodriguez is hitting 570 home-runs in 8059 at-bats. At Albert Pujols rate, how many home-runs will he have when he reaches 8059 at-bats? How many at-bats will it take him to reach 570 home-runs?
Click here to see answer by jsmallt9(590)

Question 203049: In a zoo the ratio of giraffes to apes is 6 to 5 and the ratio of apes to zebras is 4 to 1. What is the minimum number of zebras the zoo could have?
Click here to see answer by scott8148(3382)

Question 203297: A new virus is released on the internet: the adminstrator of a department's Local Area Network (LAN) is given five minutes by a manager to estimate the impact. The adminstrator samples 12 of the PCs connected to the LAN and finds that 7 are infected. Use 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 Earlsdon(4898)

Question 203409: The ratio of domestic stamps to foreign stamps in John’s stamp collection is 3:1. If John sold thirty of his domestic stamps, the ratio of domestic stamps to foreign stamps would be 1:2. How many foreign stamps does John have in his collection?
Click here to see answer by ankor@dixie-net.com(6691)

Question 204057: Two corresponding sides of similar polygons are in the ratio of 2: 3. If the perimeter of the smaller figure is 6 meters, what is the perimeter of the larger figure?
Thank you for your time and your help.
Click here to see answer by feliz1965(151)

Question 204231: Two numbers are in the ratio 9:13.if the large number is 390.find the number.
Click here to see answer by stanbon(26259)

Question 204368: if A:c=1:3 and b:c=5:7,find a:b and a:b:c.
Click here to see answer by RAY100(1637)

Question 204755: Can you please help me find the dimensinos of a rectangle with the great area whose perimeter is 30 feet. I made an educated guess and made possible solution sets for the higher possible number combinations. From that I saw that the solution should be between 7 and 8 ((7,8) and (8,7) solution sets give me the 30 foot perimeter and the highest area as whole numbers). Visualizing, I am thinking that there has to be a maximum of a parabola, and that, since this is a real object, the negative side of the axis would not apply. I just don't know what to put together to the equation I feel must exist if say, the question involved a perimeter of 150 feet, with a great many more possble solution sets. Does this tie into Geometry and the area of a square being the greatest perimeter of rectangles of identical perimeter or something?
Click here to see answer by scott8148(3382)

Question 204773This question is from textbook prealgebra
: sixty newspapers cost $27.find the cost for 16 newspapers????????? :*(This question is from textbook prealgebra

Click here to see answer by ankor@dixie-net.com(6691)

Question 204947: If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa and Tom worked together to complete it ?
Click here to see answer by Alan3354(6059)

Question 205170: To determine the number of deer in a game preserve, a conservationist catches 892 deer, tags them and lets them loose. Later, 312 deer are caught; 156 of them are tagged. How many deer are in the preserve?
Click here to see answer by edjones(3292)

Question 205345: There are 120 people staying at the STAR hotel. The ratio of adults to children is 3:2. The ration of females to males is 5:1 for adults and 1:1 for children. How many adult males are staying at the hotel?
Click here to see answer by stanbon(26259)

Question 205393: A particular cake recipe serves 5 people, and calls for 1.5 cups of flour and 2 cups of sugar. Andre searches his cupboards, and finds 4.5 cups of flour, and 8.5 cups of sugar. If he uses the recipe to bake the largest cake possible with these ingredients, how many people will it serve?
Click here to see answer by rfer(2688)

Question 205536This question is from textbook
: steps to factor 12a^2 + 84ab + 147b^2This question is from textbook

Click here to see answer by stanbon(26259)

Question 205536This question is from textbook
: steps to factor 12a^2 + 84ab + 147b^2This question is from textbook

Click here to see answer by Targetweek(62)

Question 205658: please help.. they are indirect and direct variations, please show work.. asap
3.If y varies directly with x, and y = 8 when x = 16, find y when x = 46.
5. If y varies directly with x, and y = 2 when x = 4, find y when x = 45.
i got this k=2/4=1/2(45)y=90
7.If y varies indirectly with x, and y = 10 when x = 25, find y when x = 35.
i got k=10/25=2/5(35)y=14
some one please help me i really need to understand these problems they are due tonight. thanks a bunch if some one will help me//
Click here to see answer by RAY100(1637)

Question 205725: Clearing fractions; 1/2 * 4m - 3m - 5/2 The result I get is m - 2?
Click here to see answer by RAY100(1637)

Question 206385: Find the length of a rectangular lot with a perimeter of 108 meters if teh length is 8 meters more than the width.
Click here to see answer by stanbon(26259)

Question 206386: You are traveling to your aunts house that is 234 miles away. If you are currently twice as far from home as you are from your aunts, how far have you traveled?
Click here to see answer by stanbon(26259)

Question 206445: You are traveling to your aunt's house that is 234 miles away. If you are currently twice as far from home as you are from your aunt's, how far have you traveled?
Click here to see answer by mickclns(59)

Question 206561: How can I use 4 of these numbers each to write proportions.
1. 45,16,12,11,33,4
2. 18,30,1,10, 3,22
3. 5,25,48,56,5,1
4. 44,9,4,33,32,3
Click here to see answer by Alan3354(6059)

Question 206669: can you please help me?? i dont remember any of this!!
A floodlight at ground level 6 feet from a bush 4 feet tall cast a shadow of the bush on a building tha is 24 feet from the bush. What is the height of the shadow
Click here to see answer by stanbon(26259)

Question 206706: A car dealer advertised a big sale by stretching a string of banners from the top of the building to the edge of the driveway. If the building is 26 m high and the driveway is 43 m from the building, how long is the string of banners?

Click here to see answer by Alan3354(6059)

Question 206793: A car dealer advertised a big sale by stretching a string of banners from the top of the building to the edge of the driveway. If the building is 26 m high and the driveway is 43 m from the building, how long is the string of banners?
Click here to see answer by nerdybill(2446)

Question 206907: 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(2688)

Question 207709: Estimate the solution of 11/a = 9/17.
Click here to see answer by RAY100(1637)

Question 208192This question is from textbook A Problem Solving Approach to Mathematics for Elementary School Teachers
: A Boeing 747 jet is approximately 230 ft long and has a
wingspan of 195 ft. If a scale model of the plane is about
40 cm long, what is the model’s wingspan?
This question is from textbook A Problem Solving Approach to Mathematics for Elementary School Teachers

Click here to see answer by checkley77(7035)

Question 208675: Rise and run. If the rise is 3/2
and the run is 5, then what is
the ratio of the rise to the run?
Click here to see answer by nerdybill(2446)

Question 208673: Rise and run. If the rise is
3/2 and the run is 5, then what is
the ratio of the rise to the run?
Click here to see answer by nerdybill(2446)

Question 208674: The golden ratio. The ancient Greeks thought that the
most pleasing shape for a rectangle was one for which the
ratio of the length to the width was approximately 8 to 5,
the golden ratio. If the length of a rectangular painting is
2 ft longer than its width, then for what dimensions would
the length and width have the golden ratio?
Click here to see answer by algebrapro18(206)

Question 209360: URGENT QUESTION 9 not sure if its in the right place, if its not could you please email me the right place for it???)Thanks
The question is-
two numbers P and Q are such that P is 40% greater than Q. FInd the ration of P:Q
thanks, heaps.
Click here to see answer by Alan3354(6059)

Question 209512: -4(3+x)+5=4(x+3).....can i get a detailed explenation of how to do this problem, i dont know if i should add 4x to each side or not after using the distributive property.
Click here to see answer by checkley77(7035)

Question 209762: Translate the problem situation to a system of equations. Do not attempt to solve.
The perimeter of a rectangular building is 234 feet. The width is 25 feet shorter than the length. What are the dimensions? (Let W represent the width and L represent the length.)
A) W = L - 25, 2L + 2W = 234
B) W = L - 25, L + W = 234
C) L = W - 25, 2L + W = 234
D) W = L + 25, 2L + 2W = 234
Click here to see answer by 314(4)

Question 210318: A child's bank contains $2.24 in pennies and nickels. If the number of pennies is 40 less than 3 times the number of nickels, then how many pennies are in the bank?
Click here to see answer by stanbon(26259)

Question 210826: steven wants to make brownies he finds a recipe that makes 48 brownies with 1/4 cup of brown sugar how much brown sugar to make 24 brownies
Click here to see answer by checkley77(7035)

Question 211198: Factor the following sum of 2 cubes, please x^3+64y^3.
Factor 4r^2+21r+5
Factor if possible 9-12b+4b^2
Factor completely 3s^2-10s+8
THANK YOU!!
Click here to see answer by jim_thompson5910(13787)

Question 211458: You have to mix sealant that has a ratio of 16:100, catalyst to base. How much catalyst and how much base must you use to make 638 grams of sealant?
Click here to see answer by RAY100(1637)

Question 212159: Please Help Me With This Question. Thanks!
A set contains the whole numbers 2 through 15 inclusive. One number is selected at random. What is the probability of selecting a number less than 5 or more than 10? (Reduce.)
Click here to see answer by Theo(672)

Question 212174: need help solving this type of question
1/3:2/3=1/6:x
Click here to see answer by checkley77(7035)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215