Number of results: 85,032
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
Right. 5/6 = 25/30 1/5 = 6/30 4/6 = 20/30 25/30 + (6/30)t = 20/30 (6/30)t = (20/30) - (25/39 (6/30)t = -5/30 t = (-5/30) / (6/30) t = (-5/30) * (30/6) t = -150/180 t = -15/18 = -5/6
Friday, December 10, 2010 at 5:57pm by Ms. Sue
bobpursly, check please,math
do you mean like this: 720/(V-30) + 720/(V+30) = 10 Get a common denominator of (v-30)(v+30) then multiplying both sides by that, then (v-30)(v+30)X 720(V+30) + (v-30)(v+30) X 720(V-30)=(v-30)(v+30)X 10(v-30)(v+30) then multily out, and solve for v. 720(v-30)+720(v+30)=10 720v...
Sunday, February 25, 2007 at 11:04pm by jas20
11
h0 = 30 h1 = .6*30 h2 = .6^22 * 30 h3= .6^3*30 hn = .6^n*30 h10 = .6^10 * 30 = .2
Monday, March 18, 2013 at 6:22pm by Damon
algebra probl 4
actually, in the absence of parentheses, multiplication and division proceed left to right 30/6*5 = (30/6)*5 = 5 * 5 = 25 30/(6*5) = 30/30 = 1
Thursday, October 6, 2011 at 8:10pm by Steve
calculus
If we let r = rms of f(t), then 4r^2 = Int(15 - 15e^-1/2t)[0,4] = 15t + 30e^(-t/2)[0,4] = [60 + 30/e^2] - [0 + 30] = 60 + 30/e^2 - 30 = 30 + 30/e^2 =34.06 so, r = 2.92 see wikipedia on root mean square
Sunday, November 20, 2011 at 4:40pm by Steve
math
a+1/6=3/5 subtract 1/6 on each side: a+(1/6)-(1/6)=(3/5)-(1/6) a=(3/5)-(1/6) The common denominator is 30, so a=(3*6/30 - 1*5/30) =(18-5)/30 =13/30
Tuesday, December 14, 2010 at 11:33pm by MathMate
math
11/15+7/10-2/5 First, you need to find the common denominator. Since 30 is the smallest number divisible by 15, 30, and 5, then 30 is the common denominator. 11/15 = 22/30 7/10 = 21/30 2/5 = 12/30 22/30 + 21/30 = 43/30 43/30 - 12/30 = 31/30 = 1 1/30
Monday, July 14, 2008 at 9:01pm by Ms. Sue
Calculus-Rationalizing Denominator
(a+b)(a-b) = a² - b² (√6 + 2)(√6 - 2) = (√6)² - 2² = 6-4 = 2 So, you end up with (√6 - 2)/2 = √6/2 - 1 Your lack of parentheses got you the wrong answer. (√30 + 3√3)/((√30 - 3&...
Monday, October 3, 2011 at 9:34pm by Steve
english
x+30+90 you have to subtract 30 from both sides and the answer is X=60
Monday, March 7, 2011 at 6:12pm by bluestarr
algebra
t =(-b}ã(b^2-4ac))/2a t =(-7}ã(7^2-4(15)(-2)))/(2(15)) t=(-7}ã(49 +120))/30 t=(-7}ã169)/30 t=(-7}13)/30 t=(-7+13)/30 = 6/30 = 1/5 t=(-7-13)/30 = -(20/30) = -(2/3) Therefore, t = 1/5 & -(2/3)
Thursday, July 28, 2011 at 11:51am by Mithra
English
Hello. I apologize for bothering you with similar questions but I'm supposed to explain the difference in tenses in the following English sentences taken from the original English press. Will you help me please? The context is absolutely the same, but the tenses are ...
Sunday, February 5, 2012 at 12:45pm by Ilma
Chemistry
..............HA + NaOH ==> NaA + H2O ..............x.....0........0.....0 add................30 mmols.......... change.......-30...-30.....+30.....+30 equil........x-30....0......+30....+30 pH = pKa + log (base)/(acid) 4.25 = 3.886 + log(30/(A) Solve for A. I found 12....
Saturday, April 23, 2011 at 9:21pm by DrBob222
Calc
I am going to assume that the heat flow into the body is proportional to the difference between body temp T and 30 and rate of change of T is proportional to heat flow . dT/dt = k (30-T) try T = -ae^-kt + 30 that is 30 at t-->oo and 30-a at t = 0 so 0 = -a e^-10k + 30 ...
Thursday, January 6, 2011 at 11:55pm by Damon
geometry
Let the acceleration (really deceleration) be a so v = at + c when t=0 , v = 30 30 = 0 + c, --> c=30 so v = at + 30 when t=2, v = 16 16 = 2a + 30 2a = -14 a = -7 v = -7t + 30
Wednesday, December 7, 2011 at 8:35pm by Reiny
Calculus
How do i find the derivative of f(t)= 20- 30/rooot 9 + t^2 heres how i did it f'(x)= 20' - 30/root(9+t^2) ' = 0 - 30/root(9+t^2) ' (Quotient rule) f'(x)= 30' (root(9+t^2) - 30(root(9+t^2) ' f'(x)= -30(0.5(9+t^2)^-0.5) (2t) the answer at the back...
Saturday, February 27, 2010 at 3:03pm by LALA
math
9/10 +2/3 We must change these to equivalent fractions with the same denominator. 9/10 = 27/30 2/3 = 20/30 27/30 + 20/30 = 47/30 = 1 17/30
Sunday, January 6, 2013 at 3:29pm by Ms. Sue
math (plz help)
1) Numbers of seats in rows in Theater A: RA=FA+(n-1)*4 FA=Numbers of seats in first row=30 n-number of row RA=30+(n-1)*4 first row has 30 seats second row has: 30+(2-1)*4=30+1*4=30+4=34 seats third row has: 30+(3-1)*4= 30+2*4=30+8=38 seats fourth row has: 30+(4-1)*4=30+3*4=30...
Monday, March 14, 2011 at 7:21pm by Anonymous
math
(5/6) + (1/10) = (25/30) + (3/30) (25/30) + (3/30) = 28/30 = 14/15
Wednesday, May 4, 2011 at 6:22pm by Ms. Sue
math
30 is a common multiple of all the denominators 12/30 5/30 10/30 now order them
Wednesday, December 14, 2011 at 7:23pm by Damon
algebra
the number must be divisible by 2, by 3, and by 5 that is it must be divisible by 30 So the sequence is 30 60 90 ... < 500 this is an arithmetic sequence, where a = 30 and d = 30 what term is around 500 a+ (n-1)d = 500 30 + (n-1)(30) = 500 30 + 30n - 30 = 500 30n = 500 ...
Wednesday, April 10, 2013 at 7:24pm by Reiny
Math
1/6 = 5/30 1/3 = 10/30 2/5 = 12/40 Add the fractions and subtract from 30/30 Simplify your answer.
Wednesday, March 6, 2013 at 5:28pm by Ms. Sue
fractions
or, assuming the usual carelessness of users, if you mean 5/6 - 1/5 then use an LCD of 30 to get (5/6)(5/5) - (1/5)(6/6) = 25/30 - 6/30 = 19/30
Monday, September 10, 2012 at 11:59am by Steve
algebra probl 4
oh cuz pemdas you have to do multiplication first to get 30 so then 30/30 is 1 yep sorry i forgot thanks' 30/6*5=
Thursday, October 6, 2011 at 8:10pm by Marko
math
1 + 2 + 4 + 8 + ... for 30 terms a GS , where a = 1 , r = 2 ,n = 30 sum(30) = a(r^n - 1)/(r-1) = 1(2^30 - 1)/1 = 1,073,741,823 pennies
Monday, December 3, 2012 at 8:06am by Reiny
algebra
2(15) + 7(3)/30 30 + 21/30 51/30 (simplify by dividing by 3) 17/10
Monday, August 29, 2011 at 4:35pm by Marie
MATH
(81/10) - (25/6) (243/30) - (125/30) = 118/30 = 3 28/30 = 3 14/15
Monday, October 24, 2011 at 6:29pm by Ms. Sue
4th grade
to find equivelent fractions you cross multiply them for exmple: 5/15= 2/6 5x6=30 2x15=30 30=30
Thursday, May 6, 2010 at 5:19pm by Sara!
Maths B
It is an inverted parabola symmetric about the x=30 line. Use the form y = -a(x-30)^2 + C When x = 30, (x-30) = 0 and 45 = C When x = 0, 30 = -900a + 45 900 a = 15 a = 1/60 y = -(1/60)(x-30)^2 + 45 Multiply it out if you want it in ax^2+bx+c form
Sunday, August 8, 2010 at 9:37pm by drwls
6th grade math
The common denominator is 30. 21/30 came by car 6/30 came by bus 5/30 walked That adds up to more than 1, so something is wrong here, unless some people came by a combination of means. 21/30 - 5/30 = 16/30 = 8/15 is the answer to you first question. Your second question in ...
Tuesday, March 17, 2009 at 1:01am by drwls
3rd grade math
You're right that the answer is no. 10/30 + 6/30 = 16/30 That is more than 15/30 so less than 1/2 the pie remains.
Tuesday, December 11, 2012 at 8:16pm by Ms. Sue
algebra
sides are 1/2 x , 1/5 x , 1/3 x perimeter = (1/2 + 1/5 + 1/3 ) x = 6.2 (15/30 + 6/30 + 10/30 ) x = 6.2 31x/30 = 6.2 x = 6 so 3 , 6/5, 2
Friday, January 23, 2009 at 8:20pm by Damon
math/algebra
subtract. express in simplest form 13x/30 - 4x/ 15 = factor the first denominator. Get a common denominator. Combine terms. I will be happy to critique your work. ok 13x/30 - 4x/ 15 = This is where I get lost, I know that I have to fins the LCD but when I do that it looks like...
Sunday, July 15, 2007 at 1:29pm by Diana
Physics
There is no horizontal force on the ball. So why would its horizontal velocity change? It does not, until it hits the ground or is headed or kicked. u =30 cos 30 Q : How long is it in the air? A : Twice as long as it takes to stop moving up at the top of its trajectory Q : How...
Sunday, January 29, 2012 at 3:18pm by Damon
English
When you are writing an essay that refers to two works and you are using a quote, do you (Alveraz, 30) or just put (Alveraz 30) with no comma. Thanks
Sunday, October 3, 2010 at 7:39pm by Michael
7th grade math
30=12d Divide both sides by the co-efficient. 12/12 leaves you with d. 30/12 leaves you with 2.5 D=2.5 Check your work. 30= 12*2.5 12*2.5= 30 30=30
Friday, November 26, 2010 at 2:22pm by Lily
statistics
p = .01 binomial distribution, n = 30 A) p(k) = C(30,k) p^(k) p^(30-k) for k = 1 p(1) = [30!/(1!29!)]* .01^1 * .99^29 = 30*.01*.747 =.224 B) That would be zero or one patient. We know p(1) = .224 so find p(0) p(0) = (30!/0!30!) *.01^0 * .99^30 = 1 * 1 * .740 =.740 so the ...
Sunday, February 17, 2008 at 6:51pm by Damon
Math
-9/10 = -27/30 -1/6 = -5/30 (-27/30) + (-5/30) = -32/30 = -1 1/15
Thursday, November 5, 2009 at 6:41pm by Ms. Sue
Math
There are many possible answers. Here are some with integers. x^2 + 11x + 30 = (x+6)(x+5) x^2 - 11x + 30 = (x-6)(x-5) x^2 - 17x + 30 = (x-15)(x-2) x^2 + 17x + 30 = (x+15)(x+2) x^2 - 31x + 30 = (x-1)(x-30)
Wednesday, March 4, 2009 at 8:40pm by drwls
statistics
Here the number of degrees of freedom is (3-1)=2. Hence the continuity correction of 0.5 is not required. The observations are 30,35 and 25, and the theoretical values are therefore (30+35+25)/3=30 Χ² =(30-30)²/30+(35-30)²/30+(25-30)²...
Wednesday, August 12, 2009 at 10:34pm by MathMate
AlgebraII-Reiny could you please check-I'm stuck
Sikve the following by using substitution method x=3y -5 6x-18y = -30 I got this far and I'm stuck 6(3y-5) - 18y = -30 18y - 30 - 18y = -30 -30 = -30 So this doesn't make sense anymore
Monday, February 14, 2011 at 3:06pm by JuliaAnne
Physics
(a) Let s be the coefficient of statice froction and k be the coefficient of kinetic friction. From the info on the angle at whic slidign starts, M g sin 30 = M g s cos 30 tan 30 = s (b) Solve for the acceleration rate a after sliding begins. It slides a distance X in time T. ...
Thursday, October 1, 2009 at 11:32am by drwls
English
1. At Sora's school, the first period begins at 8:30 am. 2. The first class begins at 8:30 am at Sora's school. 3. School begins at 8:30 at Sora's school. Students should come to school by 8:30, and they should do self-study for 30 minutes. They take a break for 10...
Monday, March 22, 2010 at 4:53pm by rfvv
spanish
¿Adónde vas los lunes a las 8:30 de la mañana? = 1. Look at the Spanish. 2. Come up with the English = Where do you go/are you going on Mondays at 8:30 in the morning? 3. Answer first in English. I go to school (or my first class) on Mondays at 8:30 in the...
Monday, November 28, 2011 at 8:20pm by SraJMcGin
MATH
=0.2311 (B) p(x is at most 4)=P (x,=4)=p(0)+p(1)+p(2)+p(3)+p(4) =c(12,0)(0.30)^0(1-0.30)^2(12-0)+c(12,1)(0.30)^1(1-0.30)^(12-1) +c(12,2)(0.30)^2(1-0.30)^(12-2)+c(12,3)(0.30)^3(1-0.30)^(12-3)+c(12,4)(0.30)^4(1-0.30)^(12-4) (C) u=np=12*0.3=3.6 12*0.3*0.7=2.52 (2.52)=1.5875 to ...
Friday, November 11, 2011 at 1:19pm by latoya
math
Change to improper fractions with common denominator. 16/15 + 33/10 - 14/5 = 32/30 + 99/30 - 84/30 = 47/30 I hope this hleps. Thanks for asking.
Thursday, March 20, 2008 at 10:35pm by PsyDAG
third grade math
reed's bookstore is open 9 hours each day. it opens at 9:30a.m. when does it close? i know the answer but i don't know how to show my work. please help. Two ways to do it. 12:00 noon - 9:30 = 2:30 hours in the morning. That leaves 6:00 hours - 2:30 minutes for the ...
Tuesday, April 24, 2007 at 5:22pm by zeke
geometry
I just solved your question using Calculus, but I am not sure if you know Calculus, so .... Treat your data two ordered pairs (0,30) and (2,16) where the first coordinate is time and the second is velocity slope = (30-16)/(0-2) = -7 so v = -7t + b , using the old y = mx + b ...
Wednesday, December 7, 2011 at 8:35pm by Reiny
math
-25/30, -10/30, -9/30, 20/30?
Sunday, November 7, 2010 at 10:08pm by Aly
URGENT MATH please
Did you make a sketch ? Let the width of the cut done by Chris be x m That leaves a rectangle of 40-2x by 30-2x to be cut by Jerri. (40-2x)(30-2x) = (1/2)(40)(30) 4x^2 - 140x + 1200 = 600 x^2 - 35x + 150 = 0 (x-5)(x-30) = 0 x = 5 or x = 30 , but x = 30 makes no sense x = 5 The...
Tuesday, March 27, 2012 at 10:10pm by Reiny
Algebra 1
X lbs @ $2.45/lb. (30-X)lbs @ $2.30/lb. 2.45X + 2.30(30 - X) = $2.35*30, 2.45X + 69 - 2.30X = 70.5, 0.15X = 70.5 - 69 = 1.5, X = 10lbs. @ $2.45/lb. 30 - X = 30 - 10 = 20lbs @ $2.30/lb.
Tuesday, June 28, 2011 at 6:20pm by Henry
oops - algebra
looks like Marie did mess up at the end 30 + 21/30 = 307/10 or 30.7 or 30 7/10
Tuesday, August 30, 2011 at 9:33pm by Reiny
Physics-Check
A missile launches at a velocity of 30.0 m/s at an angle of 30.0* to the normal. What is the maximum height the missile attains? (((30)*cos(30))^2)/(2*9.8) )
Friday, April 10, 2009 at 3:01pm by LeRoy
math
First change them to a common denominator. -1/3 = -10/30 2/3 = 20/30 -5/6 = -25/30 -0.3 = -3/10 = -9/30 Can you see your answer now?
Sunday, November 7, 2010 at 10:08pm by Ms. Sue
Math
first you must change the mixed fractions to improper fractions 5 7/10 - 3 14/15 = 57/10 - 59/15 now the common denominator is 30 = 171/30 - 118/30 = 53/30 or 1 23/30
Thursday, January 10, 2008 at 10:43pm by Reiny
math
a = 30 r = 27/30 = 9/10 or 0.9 so we want Sum(8) = a(1 - r^8)/(1-r) = 30( 1 - .9^8)/ .1 = 170.86 ft sum∞ = a/(1-r) = 30/.1 = 300
Monday, April 22, 2013 at 3:56pm by Reiny
Math
Your problem states that 4/5 enjoy basketball, and 5/6 enjoy soccer. 4/5 + 5/6 = 24/30 + 25/30 = 49/30 = 1 19/30 That's way more than the total number of students.
Saturday, October 20, 2012 at 8:39pm by Ms. Sue
Math
P = 2(L + W) 30 = 2 (2W + W) 30 = 4W + 2W 30 = 6W 30/6 = W 5 = W Now find the length.
Thursday, September 15, 2011 at 8:53pm by Ms. Sue
Trig
You are close. -pi/6 radians = -30º so what you are really looking for is 1/tan(-30) So you are in the fourth quadrant where the tangent is negative In another post to you I pointed out the 30,60,90 triangle, from that we know that tan(30) = 1/√3 so tan(-30) = -...
Thursday, March 6, 2008 at 5:51pm by Reiny
Algebra
if the length and width are x,y respectively, then x = y+1 2xy = xy+30 xy=30 x=6,y=5 check: xy = 6*5 = 30 2xy = 12*5 = 60 = 30+30
Saturday, November 17, 2012 at 6:10am by Steve
algebra 1 Helppppp Meeee Pleaseeee
1.70 * 9 = 15.30 15.30 - 9 = 6.30 or .70*9 = 6.30 6.30 + 9 = 15.30
Wednesday, September 14, 2011 at 7:48pm by Damon
Physics
43/√2 = 30.4, so the wind's vector is (-30.4,-30.4) If the plane flies on heading θ, (-30.4,-30.4)+(430cos(θ-45°),430sin(θ-45°)) = (0,y) so, we have -30.4 + 430cos(θ-45) = 0 cos(θ-45) = 30.4/430 = 4.05 so, the ...
Sunday, December 30, 2012 at 9:54pm by Steve
Algebra
2 / 3 - 4 / 5 - ( - 11 / 15 ) + 7 / 10 - 5 / 2 = 2 / 3 - 4 / 5 + 11 / 15 + 7 / 10 - 5 / 2 ______________________________________ Least Common factor = 30 2 / 3 = 20 / 30 4 / 5 = 4 * 6 / ( 5 * 6 ) = 24 / 30 11 / 15 = 2 * 11 / ( 2 * 15 ) = 22 / 30 7 / 10 = 3 * 7 / ( 3 * 10 ) = ...
Saturday, May 5, 2012 at 9:54pm by Bosnian
math
Convert all the fractions to fractions with the same denominator, using the LCD. A. 18/30 B. 20/30 C. 15/30 D. 21/30 Now, wouldn't the largest fraction be closest in value to 1?
Friday, January 28, 2011 at 6:15pm by helper
money
$X Initially. 1. X - (x/2+6) = x/2 - 6. 2. (x/2-6)-1/3(x/2-6)-6 = 2/3(x/2-6)-6 =2x/6-4-6 = x/3-10. 3. (x/3-10) - 1/4(x/3-10) = 3/4(x/3-10)= x/4-30/4 = (x-30)/4 = Bal. = $6. (x-30)/4 = 6. x-30 = 24. X = 24 + 30 = $54. = The amt. she started out with.
Monday, February 27, 2012 at 9:38am by Henry
physics
x = 15t^2 - 2.0t^3 v = dx/dt = 30 t - 6 t^2 a = d^2x/dt^2 = 30 - 12 t part a, just put in 3 for t in the above part b max position when v = 0 0 = t (30 - 6t) so at t = 5 sec then x = 15*25 - 2*125 = 125 part c max v when a = 0 t = 30/12 v = 30 (30/12) - 6 (30/12)^2 part d not ...
Sunday, December 14, 2008 at 8:21pm by Damon
math
simplify -15r^0/30p^-2 if that's (30p)^-2 then the answer is 30p^2 if it's 30(p^-2), then the answer is (p^2)/30 don't forget that for (30p)^-2, if it becomes 30p^2, i meant that it becomes (30^2)*(p^2). be careful with parentheses -15r^0/30p^-2. I assume it is -15...
Tuesday, October 10, 2006 at 11:08pm by jim
Math
For the first problem all you have to do is add 3 hours to 10:00am.(count 10:00 to 11:00 (1 hour), 11:00 to 12:00 (2 hours), etc.) For the second problem just count backwarks 8 hours (i.e. 3 hours earlier of 5:30 would be 2:30 (5:30 to 4:30 (1 hour), 4:30 to 3:30 (2 hours), 3:...
Wednesday, February 25, 2009 at 7:24pm by Katie
Data management
probability of non clean for each bathroom in each day is 5/6 what is the probability of 1 not clean in thirty trials? Probability of non clean = 5/6 number of trials 30 Bernoulli (n/k) is binomial coef p k non cleans in n trials = (n/k)(5/6)^k(1-5/6)^(n-k) here k = 1 and n=30...
Wednesday, January 16, 2008 at 4:33pm by Damon
math
Multiply the first equation by 4 and the second by 6, and then add the two. This will eliminate the x and let you solve for y. x - (4/6) y = -8 -x + (6/5)y = 24 (-20/30 + 36/30)y = 16 (16/30)y = 16 y = 30
Monday, July 21, 2008 at 4:35pm by drwls
Economics (attempted as suggested by economyst)
a. 60 b. 60 c. 30*30+12=912 d. atc= (3600+60*30)/30=180 e. increasing, decreasing
Monday, March 30, 2009 at 5:04pm by Robert
Math, Fraction
1/6 times 30 = 5 pennies 1/5 times 30 = _____ nickels 1/3 times 30 = _______dimes Add up your coins and subtract from 30 to find the number of quarters.
Wednesday, March 13, 2013 at 7:07pm by Dr. Jane
Proofs and numbers
24x = 42 mod 30 24x = 12 mod 30 (24-30)x = 12 mod 30 -6x = 12 mod 30 x = -2 so one possible solution is x = -2(24) = -48 adding/subtracting multiples of 30 , our mod, will yield other solutions making -2(24) + 60 , or 12 , our smallest positive answer A general solution would ...
Wednesday, November 28, 2012 at 10:48am by Reiny
Math
10 - 3:50 = 6 hours, 10 minutes 2:30 + 0:45 + 1:15 = 3:90 = 4:30 6:10 - 4:30 = 5:70 - 4:30 = ?
Monday, September 17, 2012 at 7:45pm by Ms. Sue
math
30 = total 15/30 = .5:1 or 1:2 like b-ball 10/30 = .333:1 or 1:3 like soccer 5/30 = .166:1 or 1:6 like softball
Sunday, November 7, 2010 at 11:02pm by Goizueta
math
Your equation does not produce the given data values since you want this to be linear, treat it as if you are given two ordered pairs (1993,61.3) and (1999,64.7) the slope of that is 3.4/6 or 17/30 so the equation would be E(t) = (17/30)t + b sub in first point 61.3 = (17/30)(...
Wednesday, January 7, 2009 at 11:34am by Reiny
Calc
I don't know much about the physics of this topic, but when I sub in h=0 (sea level) I do not get 30 , like I should from the given equation. according to your rule of thumb we could have the following h P 0 30 1000 29 ---> two points (0,30) and (1000, 29) slope = (...
Tuesday, October 23, 2012 at 9:07am by Reiny
math, Jay
How do these fractions turn into the following fractions. 1/3=10/30 1/5=6/30 1/10=3/30 There is a fundamental fact of math that says if you multiply anything by one , nothing changes. but 1 = 3/3 = 10/10 etc. So if you have a fraction, and multiply it be the same numerator AND...
Wednesday, December 6, 2006 at 7:34pm by Jasmine20
Math
2 sheets of paper for 30 studens: 2(30) if she has 19 and needs more subtract 19 from 2(30). example: (2(30))-19.
Tuesday, January 31, 2012 at 11:17pm by mary
math
1. factorize m^2-7m-30 Look for two numbers such that their product is -30 and the sum/difference is -7. 1*30 nope 2*15 nope 3*10 yes, 3*(-10)=30, 3-10=-7 So m^2-7m-30=(m-10)(m+3)
Wednesday, February 22, 2012 at 9:41pm by MathMate
physics
T(s) = 13C is the air temperature, the initial temperature T(o) = 30C. Newton’s law of cooling is differential equation dT/dt = - k(T-T(s)) Its solution is T =T(s) + (T(o) - T(s)) •e^-kt. After the first 5 min 20 = T(s) + (30 – T(s)) •e^-5•k. (1) After...
Monday, April 16, 2012 at 4:55pm by Elena
Math
3 1/15 - 3 11/30 Let's convert these into improper fractions: 46/15 - 101/30 Now we want a comman denominator: (46 x 2)/(15 x 2) - 101/30 92/30 - 101/30 Now we can subtract the top numbers and keep the denominator: -9/30 Now let's simply by dividing by 3: -3/10
Monday, December 8, 2008 at 11:37pm by Lena
algebra
ok, in the 50 liters, you get 30 liters of alcohol content. In the final mixture, you want 30 percent, so .30(V+50)=30+.2V check that. solve for V, the volume of 20percent.
Friday, July 23, 2010 at 9:34am by bobpursley
Math
Go to en wikipedia and type: Trapezoid You can construct many trapezoides with some area but different perimeter. Area of trapezoid=((a+b)/2)*h Example: a+b=10 h=6 A=30 a+b=2 h=30 A=30 a+b=12 h=5 A=30
Sunday, January 16, 2011 at 9:58pm by Anonymous
math need help please
let the number be x then, 50% of x = 30 (50/100)* x = 30 0.5 x = 30 x = 30/0.5 x = 60 50% of 60 is 30
Wednesday, November 26, 2008 at 11:22am by jess
math
distribute the 4. 1/6 + 8/5 - 28/10 then find Least Common Denominator. which would be 30. (5/5)(1/6) + (6/6)(8/5) - (3/3)(28/10) 5/30 + 48/30 - 84/30 solve
Thursday, November 18, 2010 at 11:23pm by Nat
math
to be arithmetic, 30-6 = 150-30 to be geometric , 30/6 = 150/30 is either of those statements true? If so, is the pattern true for all the numbers given?
Saturday, June 6, 2009 at 2:53am by Reiny
math
Write the answer to the problem as an algebraic expression. The product of two numbers is 30. One of the numbers is r. What is the other number? Our choices are: a) r/30 b) 30/r c) 30-r d) 30r I believe the answer is b but am thinking it may be c, any help?
Thursday, January 20, 2011 at 4:36pm by m
English
1. He has lunch at 12:00 p.m. 2. He has lunch at noon. 3. He has lunch at 12:00 noon. (Which expressions can we use? Are all OK? Which one is frequently used?) 4. He has dinner at 17:30. 5. He has dinner at 17:30 p.m. 6. He has dinner at 17:30 o'clock. (Is only #4 correct...
Monday, April 6, 2009 at 11:46pm by John
English
Hi! Any ideas on an activity which could last for 45 minutes? The topic - Valentine's day Learners: 16 year old, 30 in the class, learning English as a foreign language for 7 years
Monday, February 13, 2012 at 12:33pm by Mark
Math
1/6 + 2/5 + 1/3 5/30 + 12/30 + 10/30 = 27/30 = 9/10
Thursday, November 8, 2012 at 10:31pm by Ms. Sue
MATH
Let c = the time for one chair. 4c + 2c = 30 6c = 30 c = 30/6 c = ?
Monday, September 26, 2011 at 10:02pm by Ms. Sue
math
the -30 -30 was subtract 30 from both sides. it lined up in the box but not when posted -_-
Wednesday, September 21, 2011 at 7:27pm by cody
geometry
measures of a triangle. m<a=(x+30) m<b=x M<c=(x+60) so then would i set up the problem as x+30+x+x+60=180 and then would i combine like terms so i get 30+x+60=180 and then 30-60=30 so then 180/30=6 so x=6
Tuesday, October 7, 2008 at 7:32pm by eao
3rd grade math
1/3 = 10/30 1/5 = 6/30 1/2 = 15/30 What do you think?
Tuesday, December 11, 2012 at 8:16pm by Ms. Sue
physics
2 m/s^2=?-30m/s^2/4s ?-30=4*2 ?-30=8 ?=8+30=38 1st speed=38m/s
Thursday, August 26, 2010 at 9:54pm by Faith
Math
12 noon - 9:30 = 2 hours, 30 minutes 2:30 + 7:15 = ?
Saturday, January 28, 2012 at 12:13pm by Ms. Sue
MATH (correction)
From the information provided, here is the equation. 30/x = 3 * 2 30/x = 6 30 = 6x x = 5
Wednesday, February 17, 2010 at 1:14am by PsyDAG
English
Tom's popularity index is 30%. The popularity index is 30%. (Are they grammatical?)
Monday, November 26, 2012 at 7:00pm by rfvv
ALGEBRA
Equation : N( t ) = N( 0 ) * ( 1 / 2 ) ^ [ t / t( 1 / 2) ] In this case : N ( 30 ) = 480 * ( 1 / 2 ) ^ ( 30 / 10 ) N ( 30 ) = 480 * ( 1 / 2 ) ^ 3 N ( 30 ) = 480 * 1 / 8 = 60 grams
Wednesday, March 21, 2012 at 12:59pm by Bosnian
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