# Divide 4 by 1/4. In other words, multiply both sides by 4/1 and S=16 Help? What is 1/4s=4

20,395 results
1. ## Pre-Algebra

inequality 0.75x>3 Multiply both sides of the inequality by 4/3 if you want to know what x is. from where did you get 4/3 to multiply to find x. How do you know that? MULTIPLY BOTH SIDES BY 4/3 The 4/3 comes from dividing both sides of the equation by 0.75

asked by Amber :) on November 28, 2006
2. ## Maths

you have to solve the following by finding the value of x and y. can u help please? x+3(x+1)=2x 1+3(x-1)=4 2x-2(x+1)=5x 2(3x-1)=3(x-1) 4(y-1)+3(y+2)=5(y-4) 3y+7+3(y-1)=2(2y+6) These are exercises in standard algebraic manipulation of equations. Basically,

asked by number 420 on April 22, 2007
3. ## Algebra

Solve S=a/(1-r) for r S = a/(1-r) Multiply both sides by 1-r S*(1-r) = [(1-r)*a]/(1-r) Simplify S*(1-r) = a Multiply terms on the left. S - S*r = a Subtract S from both sides. S-S*r - S = a - S Simplify -S*r = a - S Multiply both sides by -1 S*r = -a+S

asked by Sara on July 19, 2007
4. ## Allebra

Divide 4 by 1/4. In other words, multiply both sides by 4/1 and S=16 Help? What is 1/4s=4

asked by Aubrey on November 20, 2006
5. ## math

how do you solve 9x=6 9x=6 Divide both side by 9. (Remember you can add, subtract, multiply, etc but do to both sides what you do to one.) 9x/9 = 6/9 The 9's divide out on the left leaving x. x = 6/9. I will let you reduce the answer. divide by 9 on both

asked by jenny on August 24, 2006
6. ## Algebra

Which of the following describes a correct method for solving the equation below? -7/2n + 5 = -16 1. add 5 to both sides, then divide both sides by 2/7 2. subtract 5 from both sides, then multiply both sides by -7/2 3. add -5 to both sides, then multiply

asked by Anon on December 15, 2015
7. ## simultaneous equations

Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a - 5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10 - 5b = 20 Take away 10 from both sides 5b

asked by hs on January 10, 2014
8. ## simultaneous equations

Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a - 5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10 - 5b = 20 Take away 10 from both sides 5b

asked by hs on January 10, 2014
9. ## Math, rational inequalities

Please can someone help me solve this problem? 2/x + 6/x-1 less than or = -5 8/x -1 = -4x Divide both sides by 4 2 >= -x Multiply both sides by -1 -2

asked by agirl on November 26, 2006
10. ## math

can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty -two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference of twenty -one

asked by liz on September 15, 2006
11. ## HELP!!!!!

What is the first step in solving the problem, 3x-8/12=9? A) Add 8 to both sides. B) Multiply by 12 on both sides. C) Divide by 3 on both sides. D) Subtract 9 on both sides.

asked by natalie on November 12, 2009

What is the first step in solving the problem, 3x-8/12=9? A) Add 8 to both sides. B) Multiply by 12 on both sides. C) Divide by 3 on both sides. D) Subtract 9 on both sides.

asked by natalie on November 12, 2009

What is the first step in solving the problem, 3x-8/12=9? A) Add 8 to both sides. B) Multiply by 12 on both sides. C) Divide by 3 on both sides. D) Subtract 9 on both sides.

asked by natalie on November 12, 2009
14. ## Algebra 2

-2/3x + 3

asked by Daren on January 22, 2007
15. ## algebra

I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 Pretty easy, huh? After

asked by Tony on March 20, 2007
16. ## Algebra

- 20> 8 +7a Solve inequalities like you would an equation, EXCEPT if you multiply or divide by a negative number, reverse the inequality sign. Let's look at your problem: - 20 > 8 + 7a First subtract 8 from both sides (whatever operation you do to one side

asked by steph on December 14, 2006
17. ## Math

Emmy is 12. She writes an equation to find her mother's age, m. m - 12 + 35 What operation solves the equation for m? add 12 to both sides, or subtract 12 from both sides, or multiply both sides by 12, or divide both sides by 12

asked by Jason on March 3, 2011
18. ## MATH

asked by Jallai on February 28, 2019
19. ## Maths

Can you please help explain how to get the answer to 3/x = 2/5 thanks a heap 3/x = 2/5 Multiply both sides by x (to get rid of the x in the denominator) x*(3/x) = x*(2/5) 3 = 2x/5 Now multiply both sides by 5 (to get rid of the 5 in the denominator.) 3*5 =

asked by Marnia on June 2, 2007
20. ## ALGEBRA 1

asked by kj on January 29, 2019
21. ## algerbra

3-3r=4 Do you wish to solve for r? Put r on one side and everything else on the other. First substract 3 from both sides. 3-3-3r = 4 - 3 combine. -3r = 1 Multiply by -1 3r = -1 Divide both sides by 3 3r/3 = -1/3 r = -1/3

22. ## math

Solve each formula for n. 2n = 4xp-6 3m-n=4s r/n+2=p t=100(n+3) pv/nR=T 8a+2=6b In the first example, divide both sides of the equation by 2 In the second example, add n to both sides of the equation. Try these yourself. They aren't that hard. We will be

asked by nae on March 29, 2007
23. ## Algebra

Solve Q= (N-S)/ N for N So when I multiply both sides by N I get Q(N)= N-S I know I am doing something wrong, the answer is in the book which is N=S/(1-Q)but I don't understand were the 1 comes from. Could you write it out step by step, so I can see what I

asked by Sara on July 20, 2007
24. ## math

kelly solved the following problem on her recent math test 121/11+4*8=120 the answer was marked wrong by your teacher and kelly is asking you to explain why she missed the promblem.whicthsolutions would you tell her A.divide 121 by 11,multipy 4 by 8 then

asked by jamia on September 2, 2009
25. ## math,correction

can someone correct these for me i'll appreciate it thank. dirctions: solve 3x-7=2x+8 my answer: x = 15 directions: solve 2/5x=-10 my answer: x = -25 Directions: solve -3(x+1)=2(x-8)+3 my answer: x= -3.2 1 looks ok. Show your work on 2 and 3 and we can

asked by jasmine20 on January 11, 2007
26. ## algebra

Which could be a first step in solving the equation 1/4x+1/2=3/4x in an efficient way? Select two answers. A.multiply by 4 on both sides B.multiply by 2x on both sides C.subtract 1/4x from both sides D.add 1/2 to both sides plz help i need an answer

asked by bamboo on February 13, 2020
27. ## math

hi, i need help with solving this equation for "y" 2x+3y=-2 2x+3y=-2 Get y on one side. Subtract 2x from both sides. 2x-2x+3y=-2-2x combine terms. 3y=-2-2x Divide both sides by 3. 3y/3 = (-2-2x)/3 y = ?? how do you get -2-2x to divide by 3? I would just

asked by Tracy on March 11, 2007
28. ## Algebra

89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, and this is the reply I got from someone: multiply both sides by 7 6x-42=-14 add 42 to each side 6x=28 x=14/3 But I don't get how this is done because to eliminate 6/7 shouldn't I

asked by y912f on May 7, 2010
29. ## Math

Which could be a first step in solving the equation 1/4x + 1/2 = 3/4x in an efficient way? Select two answers. A. Multiply by 4 on both sides*** B. Multiply by 2x on both sides C. Subtract 1/4x from both sides D. Add 1/2 to both sides***

asked by Null on February 6, 2020
30. ## Math

Which could be a first step in solving the equation 1/4x + 1/2 = 3/4x in an efficient way? Select two answers. multiply by 4 on both sides multiply by 2x on both sides subtract 1/4x from both sides add 1/2 to both sides

asked by Brezyia on February 7, 2020
31. ## math

2/3 over 10 equals 1.8/r solve for r. (2/3)/10 = 1.8r. First, invert and multiply the denominator; i.e.,10. (2/3)*(1/10) = 1.8/r 2/30 = 1.8/r Now cross multiply. 2r = 30*1.8 2r = 54 Now divide both sides by 2 2r/2 = 54/2 r = 27 check my thinking. check my

asked by sandy on August 19, 2007
32. ## ALgebra

Indicate and explain the logical error in the following set of algebraic expressions Let a=b square both sides to get a^2=b^2 a^2=b*b Since a=b, then a^2=a*b Subtract b^2 from both sides a^2-b^2=a*b-b^2 Factor both sides: (a+b)(a-b)=b(a-b) Divide both

asked by Robert on December 22, 2011
33. ## Variable

SOLVING EQUATIONS WITH THE VARIABLE ON BOTH SIDES Solve the equation. Then check your solution. 4x-9 = 7x+12 Just remember that one can add, subtract, multiply, divide, etc but whatever is done to one side must be done to the other side of an equation. 4x

asked by seth on August 5, 2006
34. ## math, algebra

Problem: A formula for a football player's rushing average r with a total of y yards rushed in n carries of the ball is r=y/n. Solve for n. I have no other information this is how its in the book how do i even solve for n if theres no numbers. You don't

asked by jasmine20 on December 12, 2006
35. ## Math

A=1/2H(B+b) Solve for H Let's start by getting rid of the fraction. Multiply both sides by 2 (whatever operation you do to one side of an equation you must do to the other side as well): 2(A) = 2[1/2H(B+b)] 2A = H(B+b) Now divide both sides by (B+b) and

asked by Joseph on January 17, 2007
36. ## Math

Which operation can you use to solve the equation 2/9x = 12? a.Subtract 12 from each side b.Add -2/9 to each side c.Divide both sides by 9/2 d.Multiply both sides by 9/2

asked by IKTA! on January 22, 2020
37. ## Math Division of polynomials?

Divide and simplify (3y-6)/14÷(y-2)/4y I think I am supposed to multiply both sides by 4y. Help.

asked by Sabrina on September 25, 2010
38. ## math-inequalities

I really don't understand this stuff for example: 9b-3b+34

asked by Paige on February 28, 2007
39. ## Maths ..Equations

Hi I have to rearrnge the following to make y the subject.. x = 3 - 2y / 6 I get the first part do x 3, - 2, and / 6. Undo x 6, + 2, and / 3 then multiply by 6 so, 6x = 3 - 2y add 2 to both sides, 6x + 2 = 3 the divide both sides by 3 6x + 2 = y ------- 3

asked by Leo on December 10, 2007
40. ## Help 5!!!

5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 On the second equation, change it to read y= ...,. Divide both sides of that equation by 6 to get the desired result. how?? The

asked by Margie on October 13, 2006

Help to solve this 1/2 (3g-2) = g/6 nevermind I was missing a bracket in the solution. multiply both sides by 2 This gives 3g-2=g/3 now cross multiply to get 9g-6=g now add a -g to both sides and +6 to both sides. g=3/4

asked by Confused on October 24, 2006
42. ## Algebra 2

What happens to the signs in an inequality when you multiply or divide on both sides by a negative?

43. ## math

Susan has 8/9 gallons of water. She drinks 2/5 of it. Select all the statements that help you determine what fraction of a gallon she has left. Divide 8/9 by 2/5. No Divide 2/5 by 8/9. Yes Multiply the fractions together. No Multiply 8 x 2 and 9 x 5. No

asked by anonymous on August 25, 2015
44. ## Algebra

Solve each literal equations for the indicated variable D = C - s/n ( for s) s/n = D - C Next, multiply both sides of the above equation by n, to get the equation for s. i don't understand could you type it how it looks This is an example Tammy If you have

asked by Tammy Evert on July 8, 2006
45. ## Algebra

(x-3)/5 = (x-3)/x The x-3 is over the 5 and the other x-3 is over the x... I know to cross multiply so I would get 5(x-3)= x(x-3) But then would i just divide (x-3) by both sides? I would assume that's what to do, but the only reason I ask is because my

asked by Jeff on March 25, 2008

Prove that there exists no positive real number such that: 4x^2+1/4x

asked by Anon on April 8, 2017
47. ## Algebra

Solve for s: h=(square root of 3)times s/2 and solve for h V= (pi)r squared h / 3 Solve for s: h=(square root of 3)times s/2 Multiply both sides by 2. 2h = (sqrt 3)*s*2/2 which cancels the 2 on the right. 2h = (sqrt 3)*s Now divide the right side by

asked by Jamie on August 17, 2006
48. ## math

A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side is 1. 2A = h(b1 + b2)

asked by ryan on August 15, 2006
49. ## Math HURRY !!!!!!!!

These 3 questions are very confusing can some plz tell me how to solve them 1) What percent of 9 is 4? 2) What percent of 25 is 10? 3) What percent of 40 is 12? THANKS FOR HELPING!!! 1)44% 2)40% 3)30% thanks but how did u get the answer did u multiply or

asked by rebecca on January 9, 2007
50. ## math

Adding= Sum What are those kind of words for subtract divide and multiply? I am not for sure what they are called.

asked by Sam on January 14, 2016
51. ## math

the radius of a circle when the numeric values of the circumference and area are equal. circumference = 2*pi*r area = pi*r^2 Set them equal and solve for r. thanks! i understand it now! 2*3.14*r=3.14*r^2 6.28*r=3.14*r^2 r=3.14 Is that right? It doesn't

asked by christina on October 25, 2006
52. ## science

rearrange this equation 2 make x the subect. 6y = 9 - 3x so first i add 3x to both sides which makes it 3x - 6y = 9 then do i divide both sides by 9 or wat?? can sum1 help me out here If they mean by "Make x the subject" the same as "Solve for x", then add

asked by missy on April 22, 2007
53. ## algebra

how do I do this Solve for x. 3x – 2y = 6 Add 2y to both sides and then divide both sides by 3, to give you just "x' on the left side. so is this how i work it out 3x-2y=6 3x- 2y= 6 -2y 3x=6-2y x= 2 +2y No. Add 2y to both sides. 3x- 2y+2y= 6 +2y 3x=6+2y

asked by help on April 28, 2007
54. ## Pre-Algebra

HOW DO I DO THIS 5x+(-20)=-60 2-2x=8 I can only assume this is two different questions. On the first, add 20 to both sides. Then, divide both sides by 5 On the second, subtract two from each side, then, divide both sides by -2

asked by Kemmaris on May 25, 2007
55. ## math

this is a multiple choice question. How can you clear the equation (x/3) + 1 = (1/6) of fractions? a) multiply each term by 3. b) multiply each term by 6. c) divide each term by 6. d) divide each term by 18. e) divide each term by 3. I choose A but I got

asked by anonymous on January 23, 2020
56. ## math

35 divided by [9 plus (9-7) minus 4] plus 10 times 3..can someone please explain how to do this problem math - Evan, Tuesday, May 11, 2010 at 8:37pm think of "Please Excuse My Dear Aunt Sally" P is for paranthesis first E is for exponents M and D are for

asked by danny on May 11, 2010
57. ## math

35 divided by [9 plus (9-7) minus 4] plus 10 times 3..can someone please explain how to do this problem math - Evan, Tuesday, May 11, 2010 at 8:37pm think of "Please Excuse My Dear Aunt Sally" P is for paranthesis first E is for exponents M and D are for

asked by danny on May 11, 2010
58. ## math

solve for a a x 25 = ( 7 x 20 ) + ( 7 x 5 )a multiply it out. 25a=140+35a subtract 35a from both sides -10a=140 divide both sides by -10

asked by Daniel on July 28, 2005
59. ## Math

Can someone check my work? the problem is: x=2+3/y and I have to solve for y I get rid of the denominator y and multiply it with X...so it looks like xy=5 then just divide by x on both sides for a final answer of y=5/x

asked by George on September 1, 2013
60. ## Algebra

Can you explain to me how to solve this equation? 2/3x-9=1/3 1/3=.33 and 2/3=.66 now the problem is 0.66x-9=0.33 When I did this in math, I had trouble, but now I understand it. Since 0.33 is on the other side of the = then 9, you would do 0.33+9=9.33 In

asked by Britt on December 6, 2006
61. ## Math

How do you divide fractions??? Cross multiply: For example, 4/5 divided by 6/7 would be 28/30 or 14/15. 3/4 divided by 2/3 would be 9/8 or 1 and 1/8 Actually, the word cross multiply is a misnomer. What is being done is multiplying by the reciprocal for

asked by Gracieh on January 11, 2007
62. ## Chemistry

I have the following equation: 0.5 ug/L x 1g/10^-6ug x 1 mol/27 g I can't divide by 10^-6...how do I rearrange the equation? What is the problem with dividing by 10^-6? Anyway, you can multiply by 10^6 instead. I end up with an error message when I divide

asked by Steve on January 23, 2007
63. ## Math

could you tell me three equivalent fractions for each: 2/3 8/16 4/10 3/4 Just multiply or divide by a common number. For example, 2/3 = 4/6 = 6/9 = 8/12 = 10/15 8/16 = 4/8 = 1/2 etc. Just multiply each fraction by 3 different numbers. For example

asked by Ann on November 28, 2006
64. ## math

x/2=3y/5 can you show me how you got the answer please y=3/4x-2 I don't think it is correct. Starting over To solve for y first multiply both sides by 5 (5)x/2=3y/5 (5) Cancel 5 on right side to get 5x/2=3y Now multiply both sides by 1/3 to get 5x/6=y

asked by Angel on July 7, 2005
65. ## math

Name: Barbara Dillon Date: July 18 2010 1. Divide 90÷18 =5 Answer is 5 2. Place the following set of numbers in ascending order. 22, –7, 8, –4, 12, –1, 14 Ascending order : -7, -4, -1, 8, 14, 22 3. Add 4. Subtract 5. Divide -18÷ -9 = 2 6. Evaluate

asked by barbara on July 18, 2010
66. ## math

Jen, I will attempt to write the others out. #3)ADD: -57 + (-22) I got -79 #4)Subtract -2.3-(-8.8) I got -6.5 #7)perform indicated operation: -21 - (-9) I tried to underline ----------- -21 - (-21) I got -12 over o or undfined #8)Multiply:(4){-3/2} This

asked by barbara on July 18, 2010
67. ## pre-Algebra

How can you solve algebra equations? The idea is to find a way to isolate the unknown by itself. You can add, subtract, multiply, and divide both sides of the equal signs to do that.

asked by Cherlyn on May 11, 2007

x/3-2/3=1/x *Solve the rational below. I really need help. multiply both sides by x. x^2/3 -2x/3 = 1 multiply both sides by 3 subtract three from each side x^2 -2x -3=0 (x-3)(x+1)=0 Then either of the factors can be zero, or x=3 or x=-1

asked by margie on March 4, 2007
69. ## MATH PLEASE CHECK IT!!2

m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) = -1 To solve for m:

asked by Margie on February 18, 2007

Formulas for a Triangle perimeter- a + b + c (add all sides) semiperimeter- a + b + c ÷ 2 (add all sides the divide by 2) area- base • height ÷ 2 (multiply base by heighth divide by 2) base- 2 • area ÷ height (2 by area divide by heighth) height- 2

asked by Z}12ih8z12{Z on March 22, 2012
71. ## math

how do you convert miles to feet in the u.s.customary system? a.multiply by 12 b.divide by 12 c.multiply by 5,280 d.divide by 5,280

asked by babyc36 on June 15, 2013
72. ## math

how do you convert miles to feet in the u.s. customary sysyem? multiply by 12 divide by 12 multiply by 5,280 divide by 5,280

asked by tanya on November 7, 2015
73. ## Algebra

The first step to solve for y in y/3= 6 + x is A) to subtract x from both sides of the equation. B) to subtract y/3 from both sides of the equation. C) to divide each term on both sides of the equation by 3. ******* D) to multiply each term on both sides

asked by katy on September 8, 2019
74. ## math

When you are solving inequalities, when does the sign change and when does it not? For example, in -4x -5 > 8 I know I add 5 to both sides, then I have -4x > 13 Divide both sides by -4 and it becomes x < -3.25 But WHY does the direction of the sign change?

asked by Carly on October 9, 2016
75. ## pre-algebra

how do i solve proportions??? please help!! And how do i kno what corrisponding sides are??? To solve a proportion, use cross products. For example, the proportion = can be solved as follows: = Write the original proportion. 50 n = 3 180 Find the cross

asked by jaimmers on March 15, 2007

Please help - I don't know where to begin. My problem is this: Find the numbers "Y" and "Z" if (1 and 3/5 times "Y") + (3/5 times "Z") = 5 AND (1 and 3/5 times "Z") + (3/5 times "Y") = 6. Thank You! change 1 and 3/5 to another fraction: 8/5 so the equation

asked by Kyle on March 22, 2007
77. ## maths

Please help me simplify this and show full working out. (a) (2x^3 divide 3y^4)^2 multiply (x divide 3y)^-2 (b) a-a^-1 divide a^2 - 1 (c) 3^a+2 times 9^2a+1 divide by 6^2 times 3^5a+3

asked by Shane on May 6, 2013
78. ## Math

Solve the equation by factoring, by finding square roots, or by completing the square. 4(x+8)^2=144 I'm not sure if I'm suppose to divide or multiply the 4 to both sides..

asked by Linda on November 10, 2011
79. ## math

how do i do x2+12x+32 x2+12x = 14x+32 subtract 14x from each side 14x=32 divide by 2 7x=16 x=16/7, which is 2 and 2/7 ok maybe you typed that question wrong? is it x^2 + 12x + 32 ? if it is then the solution is: (x+8)(x+4) because when you multiply them

asked by bob on February 14, 2007
80. ## math indirect measurement

traingle LMN ~ triangle TUV How long is segment LN and how long is segment UV? On triangle LMN LM=15 MN=27 On triangle TUV TU=10 TV=20 Sides LM & TU are congruent on each triangle Sides MN & UV are congruent Sides LN & TV are congruent I don't understand

asked by reece on January 15, 2015
81. ## algebra,math,help

can someone explain to me the following:thanks... one number is 2 times another. If the sum of their reciprocals is (1)/(4). Find the two numbers. We can begin by looking at the following. Let's use the letters "a" and "c.": "One number is 2 times

asked by jasort20 on March 14, 2007
82. ## pre-algebra

Rewrite the equation so the variable is alone. Solve to find the value of the variable. 42=-2h Divide both sides by 2. Then change the signs of both sides. That will provide the answer. Possibly in 1 step: Divide by -ve 2

asked by Julia on March 15, 2007
83. ## Solving Equations with Rational Expressions

Can someone please show me how to solve these for me? 5/(y-2)=y+2 (x/3)-(2/3)=(1/y-5) (y+2)/7=1(y-5) (x^2)/(x-4)-7/(x-4)=0 x^2/(x+3)-5/(x+3)=0 I assume that your second equation has y as a typo. I will use that as an example. (x/3)-(2/3)=(1/x-5) Multiply

asked by Mike on May 29, 2007
84. ## Algebra

I am in need of assistance with the following problem: v-4(4-v) = -2(2v-1) I don't want an answer I will work the problem myself I just need some one to assist me with the detailed rule or formula to work the problem. I have been on multiple sites trying

asked by Alexcia on March 12, 2007
85. ## Math

Please check my work. 1) 64 divide -4 = -16 2) -144 divide (-9) = 16 3) Simplify -9 and a small 2 = -81 4) Simplify (-3) and a small 3 = -27 5) Add -4/11 + 5/11 = 1/11 6) subtract 5/11- [-3/11] = 8/11 7) multiply [-7/8] • [-2/4] = 7/16 8) divide -3.5

asked by Ruby on November 8, 2011
86. ## math

f/2+>10......sole this inequality Frankly, it makes no sense If it is f/2 >=10 multipy both sides by 2 i meant f/2+5>10 subtract five from both sides, then multiply both sides by 2.

asked by jc on May 21, 2007
87. ## Dan

N2 + 3H2 --> 2NH3 At 25°C (delta)Ho = -92.22 kJ and (delta)So = -198.53 J/K. Using this information, calculate the equilibrium constant for the reaction at 2.43x10^2°C. (R = 8.314 J/K) Apparently the way I'm doing it is wrong: I divide 198.53 by 1000

asked by Chem on November 17, 2007
88. ## Mike

N2 + 3H2 --> 2NH3 At 25°C (delta)Ho = -92.22 kJ and (delta)So = -198.53 J/K. Using this information, calculate the equilibrium constant for the reaction at 2.43x10^2°C. (R = 8.314 J/K) Apparently the way I'm doing it is wrong: I divide 198.53 by 1000

asked by Chemistry on November 17, 2007
89. ## Math

How would one write y = 2/3x -4 in standard form? First read: http://www.algebralab.org/studyaids/studyaid.aspx?file=Algebra1_5-5.xml Then: multiply both sides by 3 3y=2x-12 then move terms into standard form -2x+3y=-12 you could multiply both sides by -1

asked by Sissy on April 28, 2007
90. ## maths

i have to make y the subject of this equation: 4t + 7y - 9 = 0 wod it be y = 4t + 9/7 ?? You need to do the same processes to both sides of the equation. First, add 9 to both sides. 4t + 7y = 9 Subtract 4t from both sides. 7y = 9 - 4t Divide both sides by

asked by kat on May 19, 2007
91. ## Math

Ok so I totally forgot how to find a common denominator when your adding fractions, could someone please tell me the steps to do that? :) multiply. Multiply the denominators together and this gives the new denominator. Divide each denominator into the new

asked by Kaitlin S. on April 12, 2007
92. ## math

I need help figuring out these two questions on euations with integers. -5x+20=-60 2x-3=-2 thank you so much for first: subtract 20 from both sides, simplify, then divide both sides by -5 for second: add 3 to both sides, simplify, then divided both sides

asked by Amy L. on April 21, 2007
93. ## Math

How would I would I solve this problem -25-75h=h+25 Add 25 to both sides. Subtract h from both sides. This should leave you with -76h = 50 Finally, divide both sides by -76

asked by Dustin on March 15, 2007
94. ## Algebra

Why are these algebraic expressions used and explain the logical error: Since a = b, then a2 = a * b Subtract b2 from both sides a2 – b2 = a * b – b2 Factor both sides: ( a + b )( a – b ) = b(a – b ) Divide both sides by ( a – b) ( a + b ) = b

asked by JT on July 19, 2010
95. ## math

24= -2(b-3)+8 I suppose you want to solve 24= -2(b-3)+8 for b, am I right? If so, subtract 8 from both sides to get 16 = -2(b-3) divide both sides by -2 to get -8 = b-3 then add 3 to both sides to get -5 = b then check the answer 24 = -2(-5-3) + 8 = 16 + 8

asked by shanique on October 24, 2006
96. ## Chemistry quick question

Ok so a quick question. I have the equation Ca3(PO4)2 --> 3Ca+2 + 2PO4-3 Sorr its confusing, int he first part the 3 4 and too are all little numbers at the bottom, for the second part the +2 and -3 are small numbers at the top to show the charges. Ok so

asked by Tracy on June 20, 2006
97. ## Algebra

22=200X62. Do you divide by x, and then multiply the right side by 22? Or do you divide 22 by 200 and 62 but at different times? I know the order of operations but I don't get how to do this. Please help.

asked by Eve on June 3, 2009
98. ## algebra

7/11 - 2x < 3/10; {1/2, 1/3, 1/4, 1/5, 1/6} Rearrange the inequality to get add 2x to both sides 7/11 < 3/10 +2x subtract 3/10 from both sides 7/11 - 3/10 < 2x divide by both sides 2 (1/2)(7/11 - 3/10) < x Can you finish it out?

asked by pezz on September 11, 2006
99. ## Algebra

When multiplying two numbers written in scientific notation what do you do with the exponents of the 10? A. multiply B. add C. subtract D. divide I think the answer is A. multiply. Is that correct?