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August 20, 2014

Search: Math--Proportions

Number of results: 90,976

Math
I'm doing proportions, and I'm kinda confused with this one problem.. x/3=1/5. the way I do proportions is by cross multiplying, so I get 3=5x? I don't know what my answer would be?
October 15, 2010 by anthony

Math--Proportions
Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck
April 5, 2011 by Lily

8th grade Algebra I (junior level math)
Hello, I am currently in Unit 4-1 (Ratio, and Proportions) and I don't understand how pairs of ratios could form proportions. Could someone give me step by step instructions? Thank You
December 1, 2009 by Jay

math156-proportions
I can solve the proportions by any method. can anyone help me understand this. #1 4/15 = x/5 #2 x/3 = x+10/6
September 14, 2009 by Christy

AP Statistics
12) Which of the following statements is true? a) The sampling distribution of the difference between two proportions will always be normal. b) When comparing two population proportions, either sample proportion can be used as the unbiased estimate of the true population ...
March 14, 2013 by Joker

statistics
For three independent samples, each with n= 100, the respective sample proportions are 0.30, 0.35, and 0.25. Use the 0.05 level in testing whether the three population proportions could be the same.
August 12, 2009 by Laura

Chemistry
For this problem would I have to use proportions? Analysis of a metal chloride XCI3 shows that it contains 67.2 % CI by mass. Calculate the molar mass of X and identify the element. I tried using proportions: X+CI3/CI3 = ?/67.2 but then I had to find for both X and ?. The ...
August 27, 2010 by Amy~

math
Solve the proportions, 4 : 5::8 :b
November 1, 2011 by rashawn

math
Solving the proportions b : 16::6 : 4
November 1, 2011 by rashawn

math
proportions 4/21=x/168
May 3, 2012 by Taylor

Math (Proportions)
1a. x/20=52,5/75= 14 1b. 13/16=x/100= 81.25 1c. 18/25=1/x= 1.38 1d. 25/18=1/x= .72
October 18, 2013 by Jerald

math
Show that the given proportions are equivalent. a+c / b+d = a-c / d-b and a / b = c / d
January 28, 2008 by Anna-Marie

math
algebra properties and proportions (x+3) 5 ----- = --- x =9/2 6 4 How do you get to this answer?
August 7, 2008 by froggie

Math
Describe an application for the use of ratios or proportions
February 28, 2008 by Allison

Math
Describe an application for the use of ratios or proportions
February 29, 2008 by Sherri

math
algebra properties and proportions (x+1) 1 ----- = --- (x+2) 3 How do you come to this answer?
August 7, 2008 by froggie

Math
Describe an application for the use of ratios or proportions
November 22, 2008 by Greg

Statistics
You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 college ...
May 1, 2014 by debbie

Stats
Which of the following statement is true? In testing the hypothesis for the equality of two population proportions, the acceptance region for the null hypothesis will be wider than the confidence interval for two population proportions, assuming the same value of alpha. A 95% ...
November 18, 2013 by Jenn

math proportions
17/32 = x/100 1700 = 32x x= 53 1/8 Am I right? yep
February 25, 2007 by Walter

math
application of Proportions-tic-tac-toe boards ?
November 19, 2013 by Imari

Statistics
You want to know if there's a difference between the proportions of high school students and college students who read newspapers regularly. out of a random sample of 500 high-school students, 287 say they read newspapers regularly, and out of a random sample of 420 college ...
May 1, 2014 by debbie

statistical applications
In the media, numerous surveys are often displayed reporting percentages or proportions. A margin of error is often reported in the survey and this is used to calculate confidence intervals. Why is it important to create/report confidence intervals (CI) rather than just ...
May 28, 2010 by cortez

Statistics
Help Me Please! In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the ...
October 29, 2013 by Casey

Math
Is this statement true or false? The following proportions will yield the same results: x/2=4/9 and 9/2=4/x
March 17, 2011 by Keenan white

math
Soory I made a mistake on the last one I meant algebra properties and proportions (x+1) 2 ----- = --- x = 1 (x+2) 3 How do you come to this answer?
August 7, 2008 by froggie

Math
Create 4 proportions that will work for the following scenario: If the scale is 3.5 in = 8 ft and the drawing measures 6 in, what is the actual distance?
November 19, 2012 by ariana

Math - Proportions
This seems like an easy question but I can not seem to find the answer in my reading material. Can anyone possibly help?
November 15, 2009 by Beverly

6th Grade Math: Proportions
14/38=X/29. I'm still confused about figuring out what x is and getting X on its own. Please Help!!!
August 8, 2012 by Hollywood

Statistics
Find the sample proportions and test statistic for equal proportions. Is the decision close? Find the p-value. a. Dissatisfied workers in two companies: x1 = 40, n1 = 100, x2 = 30, n2 = 100, = .05, two tailed test. b. Rooms rented at least a week in advance at two hotels: x1...
October 3, 2008 by Marilyn

Math
I have two math problems I need help with- Percent proportions 1. 62% of 146 is what number? 2. 18.4% of 880 is what number?
March 2, 2014 by Anonymous

Math
How have proportions been useful to solve various math problems that we have studied?
October 7, 2008 by Nabila Rahman

geometry
in a right triangle ABC, if ab is 14 and bc is 12 wut is bd? there is a pic of a large trangle abc and in it is a line drawn down angle c making it line cd. angle acd then becomes a right trangle as well. i tried working = proportions and pyth thm but i dont seem to be getting...
July 15, 2007 by yacoub

TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS
imageshack(.)(us)/photo/my-images/834/j6wv.jpg/ imageshack(.)(us)/photo/my-images/17/6n4x.jpg/ please PLEASE IM BEGGING YOU MY TEACHER WILL BE GIVING ME 79 IF I DIDNT GET THIS .. OR ELSE LOWER THAN THAT. PLEASE TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS - BARBIE LEE, ...
November 20, 2013 by barbie lee

math Statistics
Suppose that 33 out of 300 selected american drivers read the newspaper while driving. what percent of sample proportions are greater than this?
February 18, 2013 by jessica

Math
Help me- Proportions A store has T-shirts on slae at 2 for $5.50. At this rate, what do five T-shirts cost?
February 28, 2008 by Sherri

6th grade math
I need help explaining ratios and proportions to my 6th grader
January 28, 2013 by An

math
how do u solve a unit rate problem using proportions to solve
January 26, 2012 by Ch

math
im doing percent proportions and it is asking: 57% if 109 is what number? And i already know that you start with 57/100 = x/109 but how do you get the answer, i cant figure it out!!!
October 2, 2007 by mariana

Math 8 - HELP!!!!!
Ratio, Proportions, and Similarity Similar Figures A room is 36 ft long and 18 ft wide. What is the length to width ratio?
February 27, 2013 by Laruen

Math (Proportions)
Simplify each expression if possible by combining like terms. If not possible, write simplified 2x+9x I don't understand what to do
November 21, 2013 by Jerald

proportions
3/8 x __ = __ 3 5/12
November 30, 2008 by elizabeth

8th grade Algebra I (junior level math)
How do i solve proportions? step by step answers plz!!!! EXAMPLE! g/5 = 6/10
December 1, 2009 by Nick

math
one more I really do not understand this one Describe an application for the use of ratios or proportions that is or could be useful in your daily life.
December 3, 2008 by meshelle

Math-Proportions
My math question says- 1 1/2:9 = x:18 Now I gotta figure out the missing number [x]...I have 3 guesses on what answer the missing number [x] is! Either- A)2 1/2 B)3/4 or C)3 Which one is it? 1 1/2:9 = x:18 1 1/2/9 = x/18 x = 1 1/2*18/9 x = 3 hi i like garry unfortunately its ...
February 28, 2007 by Oo.Darian.oO

Math
OK, I have had trouble with math, 'C' average, and we are learning proportions. I don't get them! Can someone please do a proportion and then tell the steps to do it? Ex. 4/6= 8/X. Steps: 4/6 equals 8 over x. You do _______ do get ________ over , so X=12. [I know this is rong...
February 26, 2009 by Jayla

math
As the sample size n increases, the standard error of the proportions will __________. a)be equal to one b)become larger c)become smaller d)remain the same IS IT B)?
July 21, 2010 by thara

Proportions
b = 6 --- --- 15 10 how do I solve this problems
October 31, 2007 by Sandra

math
lydia wrote 4_1/2 pages of her science report in one hour. what was her writing rate in pages per minute? (2-4 rates ratios and proportions)
October 21, 2010 by Max

Proportions
What is the solution to the proportion 3y-8/12=y/5? can someone help me do this?
January 17, 2013 by Corie

Geometry
Can someone tell me how to solve these proportions? Thank you 5 7 ---- ----- = x - 1 x
April 13, 2008 by Lauren

math
Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321
June 25, 2013 by Glenn D

Math
Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321
June 26, 2013 by Tracy

math
Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 .
June 27, 2013 by Tracy

proportions
make 3/5 u=in to a percent then round it to nearest tenth
April 28, 2011 by zakaria

math
A persons height is 161 and the persons shadow is 280, and a objects height is 345. Solve by using proportions
October 16, 2013 by Jada

math
Person's height is 163 and the person's shadow is 290. The objects shadow is 345. Solve by using proportions
October 16, 2013 by Jada

math
Persons height is 165 and the persons shadow is 285. The objects shadow is 345. Solve by using proportions
October 16, 2013 by Jada

Math
is this the correct answer? I might post more on this exact post, so please bare with me? These are proportions 1.) 2:5 = 4:y Answer: y=2
September 6, 2011 by Bryce

Math
In right triangle ABC, altitude CD is drawn to hypotenuse AB. If AD equals 4 and AC exceeds DB by 1, find DB. It is from a worksheet about proportions in a right triangle.
February 21, 2010 by Emily

math
A double recipe of cookies calls for 5 cups of flour. Which of the following proportions could be used to find the amount of flour for a triple recipe? 5/2= f/3 2/5=f/3 2/3 = f/5 3/2=5/f
May 19, 2011 by Daniel

math
Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on your budget. I am lost please help
March 20, 2012 by Cindy

consumer math
Your fixed expenses are $1,035.65/month and are 36% of your realized income. Use proportions to compute the realized income on your budget. I am lost please help
March 19, 2012 by Cindy

math
Use proportions to solve this problem: Lisa ran 3 miles in 21 minutes. At that rate, how long would it take Lisa to run 5 miles?
August 21, 2013 by Janey

geometry
How are proportions solved when brought out in word problems?
November 18, 2008 by brooke

stats
How would r change if researchers had recordered the proportions?
February 6, 2009 by kate

Genetics
Can you help me determine the phenotype and proportions expected from these crosses in chickens? a) RR Pp x rr Pp b) rr PP x Rr Pp c) Rr Pp x Rr pp
September 9, 2011 by Tommy

Math
How would proportions be used to "scale up" or "scale down" something? (Not really sure if I even understand what this means. I even read my text and I can't figure this out.)
November 15, 2009 by Marcus

math algebra solve proportions
i need help on g over 32 = 8 over 64 solve each proportion
December 5, 2012 by YOLANDA MATEOS

algebra 1
I am working on cross products of proportions. one question is 5/7 = 3w/21 Can someone help?
April 7, 2008 by BBnewgo

Business Statistics
1- When the necessary conditions are met, a two-tail test is being conducted to test the difference between two population proportions. The two sample proportions are p1= 0.25 and p2 = 0.20 , and the standard error of the sampling distribution of p1 − p2 is 0.04. The ...
August 11, 2009 by Lesliam

Math (please please please help!)
Solve for x: 2 to x+1=x+2 to 3 or 2 to x+3= x+2 to x+5 (the proportions end up being the same in the end) I keep getting to the part after you FOIL, and then I get stuck
April 5, 2011 by Rosie

Geometry
Find the value of the variable x in the following proportions 6/x = 9/8 x=48/9=5.333333... 5/5 = 4/x x=4 1/2 = 2/x x=4 x/10 = 10/8 x=12.5 Are my answers correct?
April 24, 2009 by Anonymous

chemistry
What is composed of atoms in fixed proportions? A. mixtures B. compounds C. electrons D. elements
September 14, 2010 by junior

proportions
In Spanish class, the girl to boy ratio is 6 to 4. If there are a total of 20 students, how many boys are there?
March 13, 2012 by punk480

science
What happened to the proportions of the two phenotypes as the F1 generation grew from 10 to 100 offspring? Why?
March 14, 2014 by biology123

Math check
Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 2.71 was my answer. .
June 26, 2013 by Tracy

math
Girls who played video games and got into fights = 36 Girls who played video games and did NOT get into fights = 55 Girls who Never played video games and got into fights = 578. Girls who Never played video games and did NOT get into fights = 1436 Is there evidence that the ...
April 17, 2013 by Desperately needs help

Math
Henry is building a front door. The height of the door is one foot more than twice its width. If the door is seven feet high, what is its width? Am I suppose to use proportions
December 4, 2013 by Jerald

Geometry
Find the values of the variable x in the following proportions 5/3 / 4/3 = x / 20/9 x= 25/9 =2.77777.... 5/4 = x/3 x= 15/4 = 3.75 20/36 / 21/x x= 189/5 = 37.8 Are my answers correct?
April 24, 2009 by Anonymous

chemistry
Do the relative proportions of elements ina agiven compound vary from sample? pls help
September 23, 2011 by ted

chemistry
Do the relative proportions of elements ina agiven compound vary from sample? pls help
September 23, 2011 by ted

math
what are inverse operations,ratios and proportions what is the formula to find the area of a cone, rectangular prism ,triangular prism, cylinderpyramid square pyramid They all have the same formula: Volume= 1/3 areabase*height
June 9, 2007 by ahmed

math
Describe an application for the use of ratios or proportions that is not mentioned in your text, or describe how an application problem in the text could be useful in your daily life
October 16, 2008 by Gertrude Sanders

math
Describe an application for the use of ratios or proportions that is not mentioned in your text, or describe how an application problem in the text could be useful in your daily life.
November 6, 2008 by scooby91320002

economics
Which economic system is used to handle a crisis of epic proportions, such as natural disaster?
July 10, 2010 by Wendy

Statistic
If we use the 2 method of analysis to test for the differences among 4 proportions, the degrees of freedom are equal to: A) 3 B) 4 C) 5 D) 1
October 24, 2010 by Anonymous

chemistry
if the relative atomic mass of natural copper is 63.54,calculate the proportions of the isotope 65cu and 63cu
January 24, 2013 by etim sylvester

math
A company is considering implementing one of two quality control plans for monitoring the weights of automobile batteries that it manufactures. If the manifacturing process is working properly, the battery weights are approximatedly normally distributed with a specified mean ...
October 3, 2007 by Anonymous

Math. Help Me!..please!
How do u find similar figures when using a proportion?'cause I don't get it dude. **EXAMPLE-On two sides-72m On the other 2-45m The next one says On one side-50m On the other- 80m Determine whether they are similar. I dont get it. Please help! THANX! it takes robert three ...
April 24, 2007 by Fred

math
Suppose that we strike a bargain, and we agree that in this chapter, for every problem you do right, I will pay you $.86 and that for every problem you do wron, I will fine you $.47. After 28 problems, you have a nice sum of $9.45 in your pocket (and I am looking for a way out...
February 6, 2007 by Kelai

College math
I really need to know the answer to this extra credit problem. Please help! A quantity, W, is directly proportional to X and the square of Y and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z=6? Give answer to 3 ...
April 6, 2013 by Lorie

Math
I am writing a Commerical/Advertisement and my audience is single Proportion looking for the perfect match. My Topic I am making the AD is: Proportions: When are two fractions ever a perfect match to each other? I don't understand what my topic is and what to write???
February 22, 2011 by Sumaiya

Math
I am writing a Commerical/Advertisement and my audience is single Proportion looking for the perfect match. My Topic I am making the AD is: Proportions: When are two fractions ever a perfect match to each other? I don't understand what my topic is and what to write???
February 23, 2011 by Sumaiya

Math
I am writing a Commerical/Advertisement and my audience is single Proportion looking for the perfect match. My Topic I am making the AD is: Proportions: When are two fractions ever a perfect match to each other? I don't understand what my topic is and what to write???
February 23, 2011 by Sumaiya my 4th type posting this so plzz answer

math
You are reducing a map of dimensions 2 ft by 3 ft to fit to a piece of paper 8 in by 10 in. What are the dimensions of largest possible map that can fit on the page? I really don't know how to do this but so far I tried to make 2 proportions by changing feet to inches. This is...
November 24, 2007 by keisha

Math
Describe a situation using proportions or ratios in a financial or geometric problem. describe the situation in detail and provide a problem to illistrate it. What is the importance of this calculation in this situation..
December 17, 2010 by Shannon

Algebra
I need help with proportions. Can someone explain to methis whole mn=pq thing or x/3=4/6 I don't understand how to di it. Please help! :) m is to n as p is to q. m/n=p/q you can solve for any of the four in terms of the others: m= np/q p=mq/n n=mq/p q=np/m
May 27, 2007 by Avalon

Math (Proportions and Scale Drawings)
5. Todd's hourly wage went from $4.50 per hour to $4.00 per hour. Calculate the difference in Todd's wages as a percent increase or decrease. 12.5% decrease
October 18, 2013 by Jerald

math
8:15::24:45 I need to write the following as proportions. If Maria hit 8 home runs in 15 softball games, then she should hit 24 home runs in 45 games.
April 1, 2007 by bobpursley

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