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April 19, 2014

Search: Math 115 #20

Number of results: 237,433

Statistics
A. The standard error of the mean = 20/sqrt([100]) = 2 answer 2 B. z =(200-115)/(20/sqrt((100)) z = 42.5 answer 0 C. z = (120-115)/2 = 2.5 answer 0. 9938 D. z = (111-115) /2 z = -2 z = (119-115)/2 z = 2 .9772-.0228 = 0.9544 Answer 0.9544
Sunday, October 27, 2013 at 9:30pm by Kuai

Math 115
Get a common denominator, which for 5 and 4 would be 20. Then change -4/5 to -?/20. That will be -16 (I did that saying 20/5=4 and 4 x -4 = -16). Change -3/4 to -?/20 and that is -15/20. Now we have -16/20 -15/20 and we add the numerators to get -31 and that is over 20 so the ...
Saturday, February 7, 2009 at 3:44pm by DrBob222

Geometry
if the pen has dimensions x by y, with x along the barn, then x+2y = 115 the area a is thus a = xy = (115-2y)y this is a parabola, with maximum at y=115/4 so, x = 115/2 so, a pen 115/4 by 115/2 gives the maximum area
Tuesday, October 30, 2012 at 9:35pm by Steve

physics
sin 20.5 = 0.35 cos 20.5 = 0.94 so its velocity = 115*.94i + 115*.35j = ...
Monday, January 23, 2012 at 9:24pm by Steve

Math - check answer
Given s = 10 - 10t2 + 45t3, determine the velocity when t = 1 s. velocity in m/s = My Answer S'= 0-20t + 135t^2 S'(1) = -20+135 = 115 velocity in m/s = 115 Can you please confirm this is correct. Thanks!
Tuesday, January 29, 2013 at 5:50pm by Brownie

physics
Work = Force x Distance 115 x 15 = 1,725 20 x 10 = 200 Obviously pushing 115 N over 15 m
Thursday, March 4, 2010 at 6:23pm by Casey

chem
Since the density is 1.00 g/mL, that means we can use 1.0 mL = 1.0 g, I remember that 1 mg/L = 1 ppm So 0.115 g/4.55 L = 0.02527 g/L or that x 1000 = 25.27 mg/L or 25.3 ppm. Your way: 0.115 g/4550 g + (.115 x 10^-6) = 0.115 g/4550 g + (negligible) =. 2.527 x 10^-5 g/1.0 g. ...
Friday, May 9, 2008 at 4:16pm by DrBob222

Math
115 -6-9 = 100, so we need to make 115 with the digits 1,2,3,4,5,7,8 115=5*23, so 5*(2+3+4+7+8-1)-6-9 = 100
Friday, April 5, 2013 at 10:50pm by Anonymous

Math
P=2x+2y(perimeter) JUST TO ADD TO THE ABOVE SOLUTION. 230=2x+2y 2y=230-2x y=115-x A=xy(Area) A=x[115-x] A=115x-x^2 dA/dX=115-2X=0(at maximum) 115=2x x=57.5(CRITICAL VALUE)
Saturday, February 20, 2010 at 6:53pm by Innocent Mutanga

Math 115
in the first one if you change both denominators to 6, then your answer is 4/6, simplified as 2/3 same way for the second one the common denominator is 20. so the problem is -16/20 + -15/20 now just add the numerators :)
Sunday, January 25, 2009 at 7:55pm by y912f

Math 115 #20
thanks
Friday, January 9, 2009 at 5:36pm by Deb

math 115
C(x)=450x+5000, R(x)=-3x^2+900x for 20<x<150 where x>=20
Friday, April 26, 2013 at 4:28pm by Lex

Math: Calculus
cost = 5(2b+L) + 15 L = 10 b + 20 L bL = 230 so b = 230/L cost = 2300/L + 20 L d cost/dL = -2300/L^2 + 20 L = 0 for min 20 L = 2300/L^2 L ^3 = 115 L = 4.86 b = 47.3 check my arithmetic !!!
Monday, November 1, 2010 at 5:46pm by Damon

math
Let the original amounts be M and P. M + P = 480 P - 20 = 3 M Subtract the second equation from the first. M + 20 = 480 - 3 M 4 M = 460 M = 115 rupees P = 365
Sunday, December 9, 2012 at 2:19am by drwls

Math 115
-4/5 + (-3/4)=-21/20 is this right
Saturday, February 7, 2009 at 3:56pm by Johnnie

Math 115 CAP
Describe some coping mechanisms developed in MAT 115 that can be used for another math course.
Monday, January 12, 2009 at 1:09pm by Deb

Math 115 CAP
What coping mechanisms did YOU learn in MAT 115?
Monday, January 12, 2009 at 1:09pm by Ms. Sue

math 83
2/3 + 3/4 = 8/12 + 9/12 = 17/12 3/4 + 2/5 = 15/20 + 8/20 = 23/20 so, you have 3*17/12 + 5*23/20 = 51/12 + 115/20 = 255/60 + 345/60 = 600/60 = 10
Saturday, February 23, 2013 at 5:35pm by Steve

Basic Physics
V=10 * 5 * 2.3 = 115 m^3=Vol. of water. Mass=V*Dw=115m^3 + 1000kg/m^3=115,000kg F = 115,000kg*9.8N/kg = 1,127,000 N.
Tuesday, December 18, 2012 at 1:54pm by Henry

algebra
simplify 26-3*2/4^4+3^4 26-6/256+81 20/337 125-2*5/3^3/3^2-(-3)^2 125-10/27/9-(-9) 115/3-9 115/27 want to know if these two problem right
Monday, October 3, 2011 at 9:29am by babygirl

algebra
simplify 26-3*2/4^4+3^4 26-6/256+81 20/337 125-2*5/3^3/3^2-(-3)^2 125-10/27/9-(-9) 115/3-9 115/27 want to know if these two problem right
Monday, October 3, 2011 at 9:29am by babygirl

math 115 wk.7
MAT 115 Week 7 Checkpoint Assignment Due Day 5
Tuesday, June 23, 2009 at 5:39am by Anonymous

math
u said there are 115 bikes...but its 115 wheels
Wednesday, October 20, 2010 at 4:05pm by Katherine

math
I assume a=$16,000, and r=11.5% compounded yearly. So a=p(1+r)^n =p(1.115)^5 p=16000/(1.115^5) =$9284.22
Sunday, August 14, 2011 at 4:53pm by MathMate

AP calculus
1. h = 115 tan51 = 142 m with error, 139.51 <= h <= 144.57 2. sorry, you'll have to do that yourself! 3. h = 115 tanθ dh = 115 sec^2 θ dθ 5 = 115 * 2.525 dθ dθ = .01722 = 0.986 just as a check, our error of 0.5 indicates a height error of dh...
Thursday, December 27, 2012 at 11:28am by Steve

MATH 115 8.5 20
Give the five-number summary of each set of numbers. 7, 7, 5, 4, 1, 9, 8, 8, 8, 5, 2
Thursday, December 18, 2008 at 1:59pm by Deb

statistics
Yes, it would be unusal for the mean of a sample of 3 to be 115 or more because there is only a 4.18% chance for this to happen. P(X >= 115) = P(X >= (115 - 100) / sqrt(15^2 / 3)) = P(X >= 1.732050808) = 0.0418
Monday, September 26, 2011 at 10:30am by Kimberly Rubino

math
2,000 * 0.115 = 230 230/2 = 115 2,000 + 115 = ?
Thursday, January 28, 2010 at 10:08am by Ms. Sue

College Physics
20 cm /2 = 10 cm or .1 m (.1/r)=cos30degree Now r = (cos30Degree)*.1 = .115 m Then use the electric potential formula V = (k/r)*(q1+q2+q3) V = ((9 * 10^9 N.m^2/C^2)/.115 m)*(5*10^-6 C + 5*10^-6 C - 4.2*10^-6 C) V = 4.52 x 10^5 V
Sunday, January 31, 2010 at 3:30pm by No Name

complex number ~
thanks BOB =) *HUGS* 115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* or is it (-75*) 115 cis (45 + 120 + 120) = 285*?? or (-195*)?? It's really Matthew!I found out what it is but I will help you when you help me plz!!! Exactly right...
Sunday, November 5, 2006 at 7:14pm by kevin

math
You must earn $115 $292 +193 + 115=600 $600 divided by 3= 200
Thursday, October 1, 2009 at 11:10pm by Lauren

PHYSICS
Ignoring gravity v^2/R = centripetal acceleration So force toward center = mv^2/R 115 N = m 14^2/R so m/R = 115/14^2 F = m 25^2/R = (115/14^2) (25^2)
Monday, January 18, 2010 at 1:39pm by Damon

math
sitting: a = 3+2p for p pumps standing: a = 3*1.2^p for p pumps 3+2(20) = 43 3*1.2^20 = 115 3+2p = 75: p=36 3*1.2^p = 75: p=18
Friday, April 27, 2012 at 9:58am by Steve

math
varies inversely means there is a constant k such that ir = k we are told that i=2 when r=115: 2*115 = 230 = k so, when i=5, 5r = 230 r = 46 ohms
Wednesday, November 7, 2012 at 11:51pm by Steve

Statistics
mean = $115 Sd = $25 n = 15 1-a = .92 a = 0.08 Za/2 = z.04 = 1.75 115 -+ 1.75 * 25/sqrt15)) 115-+ 11.296 (103.704, 126.296)
Friday, November 29, 2013 at 8:00pm by Kuai

math 115
Numbers 2 and 3 are right. For the first question, the bedroom has four walls -- (2 * 10) + (2 * 11) = 20 + 22 = ?
Saturday, September 5, 2009 at 10:05pm by Ms. Sue

Stats
For an individual bulb, the probability of a life between 105 and 115 hours is 0.1974. I used a normal probability calculator to get that. For 35 bulbs, the mean of the average remains 110 but the standard deviation is 20/sqrt35 = 3.38. The probabilty of the mean being between...
Monday, January 31, 2011 at 3:45am by drwls

Physics
h = Vo*t + 0.5g*t^2 = 115.7 m Vo*5.6 - 4.9*5.6^2 = 115.7 Vo*5.6 = 115.7+153.7 = 269.4 Vo = 48.1 m/s.
Sunday, February 9, 2014 at 4:41pm by Henry

chemistry.....help plz
The density listed for CH4 at 20 C and 1 atm is 0.668 g/L (0.717 for ideal gas behavior). You can take the 0.668 measured as a real gas and convert to 115 kPa from 101.325 kPa. 0.668 x (115/101.325) = ? g/L
Tuesday, January 29, 2013 at 7:46pm by DrBob222

math
115-100+3*5= 115-100+3*5...Use BEDMAS (Bracket, Exponent, Division/Multiplication, Addition/Subtraction). So you would first do 3*5 which is 15. So you'd have: 115-100+15 And then from there solve to get 30. It's PEMDAS Raj!! P - PARENTHESSE E - Exponent M - Multiplacation D...
Wednesday, February 21, 2007 at 11:03pm by asafa

Chemistry
No, the only difference is that HBr is a strong acid that ionizes 100% versus the other problem where both were weak acids with a Ka value for each. HBr = H^+ + Br^- and (H^+) = 0.115 You probably need to see if the HCOOH contributes anything to add. ..........HCOOH ==> H...
Monday, February 27, 2012 at 12:01am by DrBob222

math
95 said something 70+45=115, so 20 said both
Monday, March 10, 2014 at 4:01pm by Steve

complex numbers
115 cis 45* 3 solutions = 120* apart Are these correct? 115 cis 45* 115 cis 45 + 120 = 165* 115 cis (45 + 120 + 120) = 285*?? WHat is cis? cos + isin OH LOL!!!Wish I could help!LOL!But...PLease help me!!:(
Sunday, November 5, 2006 at 5:50pm by kevin

error
cost = 5(2b+L) + 15 L = 10 b + 20 L bL = 230 so b = 230/L cost = 2300/L + 20 L d cost/dL = -2300/L^2 + 20 ******* = 0 for min 20 = 2300/L^2 L ^2 = 115 L = 10.72 b = 21.5 b = 47.3
Monday, November 1, 2010 at 5:46pm by Damon

math 115
Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary?5875.20
Wednesday, September 30, 2009 at 9:07pm by amber

Statistic
Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not? What if the size for each sample was increased to 20? Would a sample mean of 115 or more be ...
Sunday, June 9, 2013 at 12:40am by Berry

math,help
1 2 3 115 2 1 1 200 1 0 1 50 1 1 4 0 is the first augmentation 1 2 1 1 2 1 0 1 3 1 1 4 115 200 50 0 is the second augmentation. z = -w = -y1-y2-4y3 y1+2y2+3y3 >= 115 2y1 +y2+ y3 <= 200 y1 + y3 >=50 y1 y2 y3 s1 s2 s3 z 1 2 3 1 0 0 0 115 2 1 1 0 -1 0 0 200 1 0 1 0 0 1 0...
Wednesday, June 13, 2007 at 12:12pm by Tiffany

algebra
115=-5-20b 120/-20=-20b/-20 -6=b
Monday, September 3, 2012 at 9:14pm by anonymous

math 115
2/7 over = 1.6 20 over r solve for r not looking for just an answer, would appreciate the formula for solving, thanks
Wednesday, November 4, 2009 at 1:37pm by Bob

Math 221
What if the size for each sample were increased to 20? Would a sample mean of 115 or more be considered unusual?
Wednesday, August 3, 2011 at 11:43pm by Nicole

Pre-Calc
=4^6(cos(115*6)+isin(115*6))
Monday, July 25, 2011 at 2:37pm by Anonymous

Vectors - check calculation
A box is dragged with a force of 115 N up a ramp a distance of 3 m. If the force makes an angle of 35 degrees with the ramp and the ramp makes an angle of 20 degrees with the ground, how much work is done? This is what I have so far: W = F * D * cos Theta =(115) (3) (cos 55...
Sunday, May 16, 2010 at 11:04pm by Ria

statistics
Let x = # of red beads, then x-20 = # blue and 2x = # white. x + (x-20) +2x = 95 4x = 115 x = 28.75 Something is wrong. If your data is correct, it should not give you a fraction. Do you have any typos?
Monday, September 19, 2011 at 8:17pm by PsyDAG

Math
change all the fractions so that they have a denominator of 20 your sequence becomes .... 10/20 11/20 12/20 13/20 14/20 15/20 .. 17/20 18/20 19/20 20/20 the missing number should be obvious btw, you forgot the 19/20 in your list
Thursday, May 19, 2011 at 7:15am by Reiny

math
10925 = 95 * 115 (x-115)(x+95)
Monday, November 28, 2011 at 5:55pm by Steve

math
n(1/2 + 1/3 + 1/4 + 2/7) = 575 115/84 n = 575 = 5*115 ...
Monday, February 4, 2013 at 12:56am by Steve

Geometry
Well I determined [B) 115 trucks] to be the answer because: The Volume of A spherical storage is 57905.83579. The Volume of a single truck with a cylindrical tank is 502.65482. so 57905.83579/502.65482=115.200001 round up and it's 115
Sunday, June 13, 2010 at 4:42pm by Ariel

math
average cost = totalcost/number of units a(x) = C(x)/x = 0.2(0.01x + 133/x) minimum avg cost is where a'(x) = 0 a'(x) = .02(.01 - 133/x^2) x = 10√133 = 115.3, so 115
Wednesday, November 14, 2012 at 4:09pm by Steve

msth 115
help multiply and use simplest form 4 1/5*10/21*9/20
Wednesday, September 2, 2009 at 7:31pm by p

msth 115
21/5 *10/21 *9*20 The twenty-ones divide out. The 10/20 reduces to 1/2, leaving, 1/5*9/2 which is 9/10 check me.
Wednesday, September 2, 2009 at 7:31pm by bobpursley

math
6 3 / 5 = 6 * 30 / 30 + 3 * 6 / 30 = 180 / 30 + 18 / 30 = 198 / 30 3 5 / 6 = 3 * 30 / 30 + 5 * 5 / 30 = 90 /30 + 25 / 30 = 115 / 30 6 3 / 5 + x = 3 5 / 6 198 / 30 + x = 115 / 30 x = 115 / 30 - 198 / 30 x = -83 / 30
Wednesday, November 9, 2011 at 6:26am by Anonymous

math
1. change to improper fraction: 9 5/9 2. change to improper fraction: 6 23/39 3. change the improper fraction to a whole number:115/20 4. multiply 4 3/4 x 1 1/7 5,subtract- 20 11/15- 17 1/3 6 2(-6)(-8)(0)(-5): multiply 7. solve for the variable: 0.1p=7
Tuesday, May 14, 2013 at 12:45am by John

math
Multiply I eq by 2 and II by 3 6x+8y=58 6x-15y=-57. Subtract II eq from I. Signs of II eq will change:-6x+15y=57. Thus, 8y+15y=58+57 Or 23y=115 or y=115/23=5. Now substitute this in any original eq: 3x-4x5=29 or 3x=29-20=9, hence x=9/3=3
Wednesday, July 24, 2013 at 11:03pm by Anonymous

Math (Continued)
x = -115 ____ -2 Solve this to get: 57.5 So, your greatest value for x will be 57.5. Plug this in to your perimeter equation to determine the value of y. Remember: P(x) = 230 = 2x + 2y 230 = 2(57.5) + 2y 230 = 115 + 2y -115 -115 ___________________ 115 = 2y ___ ___ 2 2 57.5 = ...
Saturday, February 20, 2010 at 6:53pm by Lela

geometry
I found out the first part of which is x for the figure which was 115 degrees.They do give you the other measures of the angles which are 115,155,155,155.135,135,115.The second part of the problem say yo find the sum of the measures of the exterior angles,one at each vertex,...
Saturday, July 23, 2011 at 4:59pm by Lauren

math 115
1. You're close - but I get a slightly different answer. Run the numbers through a calculator again. 2. Cross multiply in this proportion. 4/x = 3/15 3x/60 x = 60/3 x = 20
Saturday, September 5, 2009 at 10:22pm by Ms. Sue

MAth (Ratio)
male = 30 + 20 = 50 female = 40 + 25 = 65 total = 70 + 45 = 115 so total electric:manual ratio is 70:45 Where do those numbers come from? 3:2 ratio is 5. 3/5 electric; 2/5 manual. Percent like = (3/5)*100 = 60% electric (2/5)*100 = 40% manual Then 0.6*50 total = 30 electric ...
Wednesday, September 18, 2013 at 1:53pm by DrBob222

Algebra
5(14x/5) + 5(7x)= 5(23) 14x + 35x = 115 the 5's cancel 49x = 115 divide both sides by 49 to get x on its own x = 2.35
Friday, December 14, 2012 at 11:31am by amy

physics
conservation of momentum applies Momentum tackler= momentumbothafter 115*4.5=(115+M)2.6
Monday, March 12, 2012 at 10:23am by bobpursley

ap
An arithmetic progression (A.P) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. If the initial term of an arithmetic progression is a1 and the common difference of successive members is d, then the nth term of...
Thursday, March 1, 2012 at 11:43pm by Bosnian

Math
Perhaps there is a more elegant way, but the following should work. Start with smallest to largest numbers: 1+1+1+1+1+1+1+13=20 1+1+1+1+1+1+3+11=20 1+1+1+1+1+1+5+9=20 1+1+1+1+1+1+7+7=20 1+1+1+1+1+3+3+9=20 1+1+1+1+1+3+5+7=20 1+1+1+1+1+5+5+5=20 1+1+1+1+3+....
Sunday, December 5, 2010 at 7:26pm by MathMate

math help!
bernardo folds the 2 top corners of a rectanglular piece of paper to form 2 conguent triangles and an isosceles trapezoid. The triangles each have an angle that measures 65. what are the measures of the 2 top angles in the trapezoid? a. 25 and 25 because 65 + 25=90 b. 115 and ...
Tuesday, December 7, 2010 at 9:43pm by DeNawQisha

CIS 115
CIS 115 week 7 exercise: Determine output. I need help with this week's exercise...DeVry CIS 115 week 7...please help! Using the questions on page 2, determine the output for each question. If input data is provided, be sure to use it with the each question.
Sunday, February 24, 2013 at 6:32pm by dddiii

chemistry
How many acetylene molecules do you need for each O2 molecule? 2C2H2 + 5O2 --> 4CO2 + 2H2O 5 O2 molecules for every 2 2C2H2 molecules larger tank has O2 let's say it has 5x moles of O2 p v = 5x r t 115 * 7 = 5 x r t x r t = 115 * 7/(5 ) now the other tank has 2x moles of ...
Wednesday, July 7, 2010 at 5:33pm by Damon

Psycology
javascript:materialLinks('29',%20'psy270r3_chapter_14.pdf',%20'IC-Materials',%20'PSY270R3',%20'ST',%20'True');%20%20%20%20%20%20customTracker('file',%20'Ch.%2014');
Wednesday, April 21, 2010 at 10:39pm by Lucky

Calculus
p ' (t) = (-.009)(20.6) e^(-.009t) plug in your birth-year. Sorry, I don't know it, you didn't invite me to your birthday party. "today" ---> t = 53 , which is beyond the domain given. (Time to get a new edition of the textbook) if you want to do it anyway p ' (53) = (-....
Tuesday, April 9, 2013 at 2:27pm by Reiny

trig
Determine in which quadrant you are in, then use the CAST rule e.g. sin(-245) = sin( 115) , (going 115 counterclockwise is the same as going 245 clockwise ) 115 is in quad II in quad II , sine is positive, so sin(-245) is positive you can always check with your calculator...
Thursday, January 26, 2012 at 11:14pm by Reiny

Mathematic
frequency = k √t/L given: 325 = k√115/1.23 k = 1.23(325)/√115 for 2nd case frequency = (1.23(325)/√115) √92/.95 = ..... you do the button-pushing
Tuesday, November 22, 2011 at 10:35pm by Reiny

math
First, find the common denominator. 2 3/4 = 2 15/20 2 4/5 = 2 16/20 2 15/20 + 2 16/20 = 4 31/20 = 5 11/20 6 = 5 20/20 5 20/20 - 5 11/20 = 9/20
Wednesday, February 23, 2011 at 4:56pm by Ms. Sue

CHEMISTRY
First determine pKa. pH = pKa + log(A^-)/(HA) I have approximately 3 but you need to be more accurate than that. 650 mL x 0.271M = about 170 mmoles 650 mL x 0.150M = about 95 mmoles mmoles LiOH added = 130 x 0.155M = about 20 mmoles. ...........HA + OH^- ==> A^- + H2O ...
Wednesday, September 21, 2011 at 2:48pm by DrBob222

Stats
The distribution of lifetimes for a particular brand of lightbulbs has a mean of 110 hours and a standard deviation of 20 hours. Suppose a random sample of 35 lightbulbs is taken for observation. What is the probability that the sample mean lifetime will be between 105 and 115...
Monday, January 31, 2011 at 3:45am by Ryan

physics
How many calories of heat must be added to 455 g of steel to raise its temperature from 20 C to 192 C? (Note: csteel = 0.115 cal./g. C.)
Monday, May 20, 2013 at 3:58pm by help please asap

Math 115
9% = 0.09 = 9/100 15% = 0.15 = 15/100 = 3/20
Saturday, November 29, 2008 at 4:12pm by drwls

math
In a population of 10,000 adults, 20% are smokers. A simple random sample of 600 of the adults is drawn. a)The SE of the number of smokers in the sample is closest to 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 b)The chance that there are fewer than 115 smokers in the sample ...
Sunday, May 19, 2013 at 3:16am by tms

algebra
aside from the ambiguity caused by a paucity of parentheses, #1 looks ok #2 (-3)^2 = 9, not -9 but that's ok, since you dropped it in the next step anyway.Other than that, it's virtually incomprehnsible. Add some parens so it's clear what is wanted. I can guarantee that 115/3-...
Monday, October 3, 2011 at 9:29am by Steve

math
Process: find common denominator = 20 5 12/20 + 15/20 + 2 10/20 = 7 37/20 = 8 17/ 20
Monday, April 30, 2012 at 10:47pm by PsyDAG

chemistry
g oxygen = 115-68.3-13.2-15.9 = ? % oxygen = (?g oxygen/115)*100 = ?
Friday, March 30, 2012 at 8:40am by DrBob222

Physics
Wb = 2.6kg * 9.8N/kg = 25.48 N. 203N/1m = F/-0.115 F=-0.115*203=-23.35 N. a = F/m = -23.35/2.60 = -8.98 m/s^2.
Thursday, October 24, 2013 at 3:51pm by Henry

Math Probability
20 x 20 x 20 x 20 x 20 x 20 You have 20 chances for each number and that happens for each draw... you have 1 chance out of _________ Can you finish from here?
Sunday, December 1, 2013 at 8:35pm by Joe

Mathematics Ms Sue help
How many calories of heat must be added to 455 g of steel to raise its temperature from 20 C to 192 C? (Note: csteel = 0.115 cal./g. C.)
Monday, May 20, 2013 at 4:09pm by adam

math
Lane French had a bad credit rating and went to a local cash center. He took out a $100 loan payable in two weeks at $115 (In other words, in two weeks he paid back a total of $115). What is the percent of interest paid on the loan? Do not round denominator before dividing
Tuesday, February 26, 2013 at 1:42am by Iliyan

math ugh.
20/20 - 9/20 = 11/20 Then, since the ratio between male and female is 11/20 / 9/20 = 11/20 * 20/9 = 11/9, we can use this to figure the amount of males. multiply by 2160 (number of females) to get 2640.
Thursday, April 4, 2013 at 9:35pm by Knights

math
The LCD is 20. You will get 7 8/20 - 2 15/20. In the fraction, you can't subtract 15 from 8. Therefore you have to borrow 1 from 7. (20/20 = 1--so add 20 to 8, gives 28). 6 28/20 - 2 15/20 = 4 13/20
Saturday, February 2, 2013 at 11:10pm by Barb

Math
4 9/20 make sure you have the same denominator. this is a subtraction problem. 7 1/4 turns into 7 5/20 and 2 4/5 turns into 2 16/20. since you can not subtract 16/20 from 5/20 you need to borrow from the whole which is 7. so 7 becomes a 6 and you add 20/20 +5/20 and get 25/20 ...
Wednesday, December 5, 2012 at 4:12pm by debbie

algebra
1st part 69m @ X+5mph 2nd part 23m @ X so,69m/x+5 + 23m/x = 2hours 69/x+5 + 23/x = 2 LCD ==> 69(x)+ 23(x+5)= 2x(x+5) 69x+23x+115=2x^2+10x 92x+115=2x^2+10x 0=2x^2-82x-115 wont factor, use quadratic formula x=(-b}(b^2-4ac))/2a x=-(-82)}(-82)^2 -(4)(2)(-115) / 2(2) +82...
Wednesday, March 28, 2012 at 11:56am by george

10th grade algebra
The cars are 500 miles apart. They are driving toward each other with the combined speed of 55+60 = 115 mph. distance = rate*time time = d/r = 500/115 = ??
Thursday, November 12, 2009 at 1:23pm by DrBob222

MATH
Mira: 20 Noreen: 20 Olivia: 20 After they give pretzels, M: 20 - p N: 20 + p + q O: 20 - q What we can do here is add all of them and equate them to the sum of the ratio multiplied by a certain factor, say x: (20 - p) + (20 + p + q) + (20 - q) = (5+9+6)x The p's and q's will ...
Tuesday, September 17, 2013 at 7:31pm by Jai

math 115
2 1/2 divided by 10 5/2 divided by 10/1 = 5/2 * 1/10 5/2 * 1/10 = 5/20 = 1/4
Saturday, September 5, 2009 at 3:00pm by Ms. Sue

Math
6/20 7/20 8/20 9/20 10/20 1/2 11/20 12/20
Monday, May 14, 2012 at 7:27pm by Julia

Physics
Np/Ns = Vp/Vs, 400/Ns = 400/115, Ns = 115 = Turns on secontary winding.
Tuesday, March 1, 2011 at 10:03am by Henry

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