# math..solve for u again

156,818 results, page 60

### math

Johns football game last for 50 minutes. What reduced fraction of an hour is that? Can someone please explain to me how to solve this question?

### math

shawna reduced the size of a rectangle to a height of 2 in. what is the new width if it was originally 24 in wide and 12 in tall ? how do you solve it if the answer is 4?

### math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + y = 10 x – y = 2

### Math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + y = 10 x – y = 2

### math

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x – 5y = 61 7x – 5y = -9

### Math: algebra 1

3. Which method would be the simplest way to solve the system? y =1/2 x 2x + 3y = 28 A.) graphing B.) substitution C.) elimination D.) distributive I think it is B.

### Math: Algebra

1. Which method would be the simplest way to solve the system? 7x + 5y = 19 –7x – 2y = –16 A.) graphing B.) substitution C.) elimination D.) distributive I think it is C.

### math

How do i solve algebraic methods in addition/ subtraction problems such as rewriting the following equations in standard form. 5x + 4 = -9y

### math

use a multiplication table to solve a division problem. in what order doo you find the quotient, the divisor, and the dividened.

### Math

Plz help me to solve In how many years will the money deposited in a bank double itself,if the rate of intrest 12 1/2% per annum?

### math

How do you solve: imgur[dot]com/PlcCL8s [I had to upload cause its impossible to write proper notation here.

### math

please help me how to solve the integral sinx/x dx from 0 to infinite : ∫_0^∞▒〖sin⁡x/x dx〗 thank you

### math

Use a graphing calculator to solve the equation 3 tan=(1)/(3)è=8 in the interval from 0 to 2pi. Round your answers to the nearest hundredth.

### Math

How would I write and solve a subtraction problem that involves regrouping and includes Ted having \$304 in savings

### math

you have \$5 for lunch. You bought a turkey sandwich for \$2.25.Write and solve an inequality to show much more can spend.

### Math

The graphs of 5x-3y=35, 7x-3y=43, and 4x-ay=61 all intersect at the same point. Find the value of "a". Do I solve the systems and then plug in? I am not sure haha.

### Math

Write an equation and solve : How many tickets does the drama club have to sell if they want to make \$150 and they are charging \$3 for each ticket ?

### math

Could someone help me solve this Absolute Equation? Please? I would really appreciate any help... Question~~ Evaluate the given expressions when a = 3, b = -3, c = 4, and d = -1 (a/c)|c| + b – d

### math

Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. A.6/12 B.6/35 C.7/35 D.7/30

### Math

Exponetial Functions In the following exponential relations, solve for x using logarithms. Round your answers to 4 decimal places. a) 5^3x=65 b) 2^2x+3=80

### Math

Exponetial Functions In the following exponential relations, solve for x using logarithms. Round your answers to 4 decimal places. a) 5^3x=65 b) 2^2x+3=80

### Math Algebra

There are numbers whose sum is 50. Three time the 1st is more than twise the second.? please solve

### math

Solve the system of equations algebraically. Show all your steps. y=x^2+2x y=3x+20 Can someone pease help me? I don't think I'm right. Would it be x=-4, y=8 Then, x=5,y=35??

### Math

The sum of 4 consecutive odd numbers is 296. Write an equation and solve it to find the second highest number.

### Math

(secx-cosx) / (tanx-sinx) = cosecx+cotx Spent hours to solve this question but failed. Please help. Thank you

### Math

How many five-card hands chosen from a standard deck contain two hearts and three spades? How do I solve this?

### Math

Hello, I need help solving two systems of equations. I'm not sure how to solve them. They are: 7w+e=8 e+5=9 And the second one is: 7e=107-6d 7e+8d=117 Thanks!

### Math

Solve. Movie tickets cost \$9.50. How much change will a customer who pays for one ticket with a \$20.00 bill received?

### Math

Solve. Movie tickets cost \$9.50. How much change will a customer who pays for one ticket with a \$20.00 bill received?

### Math

Solve. Movie tickets cost \$9.50. How much change will a customer who pays for one ticket with a \$20.00 bill received?

### Math

Solve. Movie tickets cost \$9.50. How much change will a customer who pays for one ticket with a \$20.00 bill received?

### Math

Use the quotient rule to find the derivative of cot x. I tried to solve this, but somehow I got (sec^2x)/(tanx)^2.

Hey I had to divide 7 by 20 and the answer is .35 but I need to solve it without a calculator and I dont know what I'm doing please help thanks you

### Math

Solve the following system using elimination (aka linear combination) attach an extra sheet, if needed. { 3x+2y+4z=11 { 2x-y+3z=4 { 5x-3y+5z=-1

### Math

Use a graphing calculator to solve the equation -3cost=1 in the interval from.0<theta<2pi Round to the nearest hundredth.

### math

Solve for n: ((3^n)^n*(3^n)^-1) / 81 = 1 Answer (n) = -1, 4 I have no idea how n = -1, 4. Also, please don't ask if the answers are actually wrong or not, they are directly from the text book.

### physics

hey i have a some questions i am trying to solve for practice, because i have a test coming up. can you guys help me with them? i will post them Yes. Please show your work, however. Physics is best learned through practice, not by watching others solve problems.

### Algebra

I have two problems that I am not sure about how to work out. 1. The distance traveled by a falling object is given by the formula d=4.9t^2, where d is in meters and t is in seconds. Solve the formula for t. 2.The volume of a right circular cone is given by the formula V=1/3(...

### ALGEBRA

I have two problems that I am not sure about how to work out. 1. The distance traveled by a falling object is given by the formula d=4.9t^2, where d is in meters and t is in seconds. Solve the formula for t. 2.The volume of a right circular cone is given by the formula V=1/3(...

### algebra

You are given to equations which are both true, and you are asked to solve for both x and y. you plan o solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x’s or on y’s. the first thing you need...

### Science

If it requires 23.4 milliliters of 0.65 molar barium hydroxide to neutralize 42.5 milliliters of nitric acid, solve for the molarity of the nitric acid solution. Show all of the work used to solve this problem. Unbalanced equation: Ba(OH)2 + HNO3 -> Ba(NO3)2 + H2O

### Chemistry

If it requires 23.4 milliliters of 0.65 molar barium hydroxide to neutralize 42.5 milliliters of nitric acid, solve for the molarity of the nitric acid solution. Show all of the work used to solve this problem. Unbalanced equation: Ba(OH)2 + HNO3 -> Ba(NO3)2 + H2O

### Science

Explain the law of motion needed to solve this problem and then solve it. On Planet Zorg, a 30 kg barbell can be lifted by only exerting a force of 180 N. What is the acceleration of gravity on Planet Zorg? Predict how the motion of this object would change if on Earth.

### MATH

i need help filling this out! 4x-10=32-3x 4x-10+____=32-3x+22 ____-10+____=32+_____ ___=___ ___=___ x=___ ok you need to solve for x. remember the rule, whatever you do on the left side, you do to the right side and vice versa. on the second step, they add 22 to the right side...

### Algebra/Pre-Calc

Find the values for a and b such that f(x) is continuous on the interval 0 < or = to x < or = to 13. { 2x^2, 0 < or = to x < or = to 3 f(x) = { ax + 3, 3 < or = to x < or = to 7 { b, 7 < or = to x < or = to 13 Can someone explain? Am I suppose to find ...

### Geometry Question

Can someone show me how to solve this?The measure of an angle is 20 less than 3 times its supplement. Find the measure of the angle. Let M be the measure of the angle. M+20=3(180-M) solve for M.

### math

Sorry I'm posting again-- I just thought it would increase my chances of getting my question answered if i posted it in the mathematics portion of the website also. --------------------------------------- One can of pumpkin pie mix will make a pie of diameter 8 in. If two cans...

### Math

The area of a rectangle is 220 square centimeters. The height of the rectangle is two more than twice the base. What is the rectangle's perimeter? I know you can solve this employing a guess-and-check strategy, but I want to know if this can be solved algebraically. So far, I'...

### Math

How would you work this problem? The odometer of the family car read 15951 when the driver noticed that the number was palindromic. "Curious," said the driver. "It will be a long time before that happens again." But two hours later, the odometer showed a new palindromic number...

### math ,correction

Directions: Solve each of the following problems. Be sure to show the equation used for the solution. The length of a rectangle is 2in. more than twice its width. If the perimeter of the rectangle is 34 in., find the dimensions of the rectangle. Let L = length and W = width. L...

### tech III math ( ACT Prep)

A neon sign flashes every 4 seconds, another neon sign flashes every 6 seconds. If they flash together,how manyseconds later will they flash together again?

### math

what are division rules as it applies to the following 0/71= 23/23= 29/1= This is my daughter's 4th grade math and they are asking us to explain the didvision rules that are used to solve these problems. However they have not provided us with the division rules or their terms ...

### Math

Find X 27^4x-2=243^3x+6 Please explain how to do it. Thanks 27^(4x-2)=243^(3x+6) Notice that 27 and 243 are both multiples of 3 Changing them.. (3^4)^(4x-2)=(3^6)^(3x+6) 3^4(4x-2)= 3^6(3x+6) taking the log base 3 of each side. (4x-2)= (3x+6) and solve for x. That doesn't work ...

### math..word problem

A number of bacteria are placed in a glass. One second later each bacterium divides in two, the next second each of the resulting bacteria divides in two again, etc. After exactly one minute, the glass is full. When was the glass half full?

### math

Two runners start moving from the same point A on a circular track but in oppostite directions. Their speeds are 5 ft. per second and 9 ft. per second. If they start at the same time and finish when they first meet at point A again, how many times do they meet, excluding the ...

### Geometry

Ok it's me again. I'm am working on problems that involve describing number patterns. I've figured them all out but two. Here are the two strings or numbers 7,9,13,19,27,;;;; and 256, 16, 4, 2 Any help?

### Algebra

Thanks to those who helped with my question: y+3=-1/12(x-1)^2. The only thing I am still unsure of is how to write the equation for the directrix. Do I just simply write 0=3-3, (the values plugged in for y=k-p). Thanks again for your help!!

### social studies

I need a few things for World Cultures that have to do with legacy of Rome Two examples each. Alphabet, Government, and Architecture. And again that's 2 examples each

### Calculus2

Please, help me I really need help on this problem. Thank you so much for all your help. Question: Find the radius of convergence and interval of convergence for sum(n=1to infinity)(-1)^n-1 n(x-1)^n/(n^2+1)2^n Thank you again

### Chemistry

Confused again ok I have to find the number of atoms in carbon with a mass of 13.5. So this is what I didi. 13.5 / 12.01* 6.022 *10^23= 6.77x10^23 but the correct answer is 6.74x10^23 what have I done wrong

### people

What i learned about bedbugs made me want to never sleep again. Adverbial Clause Misplaced modifier noun clause compound sentence i think it is C

### Physics

A 24.0-V battery is connected to a 4.70-µF capacitor. How much energy (in J) is stored in the capacitor? I'm guessing this is really easy but my professor sent us into the homework blind...again...

### school

A ball thrown vertically upward reaches a certain height and comes down again. What can you say about its kinetic energy at the maximum height?

### MATHS ASAP!!!!!

At the x axis, y is zero. So if the x intercept is (1,0) then (y-a)^2=x + b (0-a)^2=1 + b Now the vertex. (y-a)^2=x +b (2-a)^2= 0 + b or these two equations are.. a^2= 1+b or b= a^2 - 1 putting this into the second equation. 4-4a + a^2=a^2-1 solve for a, then go back and solve...

### Chemistry

NaOH(aq) + HCl(aq)----> H20 + Nacl(aq).. solve for the amoont of energy aborbed by the solution. (50ml of 1.0M HCl is 23deg; 50ml of 1.0M NaOH is at 25deg; mixed solutuion= 31deg pls tell me the steps to take inorder to solve the question. Thanks in advance.

### chemistry

I keep getting wrong answers for this question. Determine the pH of an HF solution of each of the following concentrations. a) .280 M b) 5.3*10^-2 M c) 2.50*10^-2 M No Ka has been given. I haven't attempted b or c yet because I want to at least solve a first. So far I got a ...

### algebra

The sample size needed to estimate the difference between two population proportions to within a margin of error E with a confidence level of 1- alpha can be found by using the equation shown below. Replace n1 and n2 by n and solve for n. E= z alpha/2 square root p1q1/n1 + ...

### Math - Trig Substitution

How can I solve the integral of x^3√(9-x^2) dx using trigonometric substitution? ? ∫ x^3√(9-x^2) dx So then I know that x = 3sinθ dx = 3cosθdθ When I substitute, it becomes ∫ (3sinθ)^3 * √(9-(3sinθ)^2) * 3cosθdθ...

### math

Money is invested at two rates of interest. One rate is 8% and the other is 2%. If there is \$1000 more invested at 8% than at 2%. Find the amount invested at each rate if the annual interest from both investments is \$310. Let x amount invested at 8% and y = amount invested at ...

### algebra 1

I'm stuck on this problem. Can you help? -4x-9y=1 -x + 2y =-4 WHat is x and y? Two equations in two unknowns. Here is a quick way to solve them -4x - 9y = 1 4x - 8y = 16 (I got that my multiplying both side so the secind equation that you provided by -4) Now add the two ...

### Math

Marks worth is A 1 B 2 C 2 Please explain next to it though how you got that answer and what to write to get that mark. Clearly explain as I have no clue, don't leave anything out though! Information needed to solve There is an isosceles triangle with corners A, B and C. ...

### Chemistry

IN my experiment, I was doing a qualitative analysis of Group I and II anions using a flowchart. IN the chart I added 5 drops of 0.1M AgNO3 and several drops of 3M HNO3 to 5 drops of solution and found that a precipitate was formed. Thus it was classified as a Group I anion. ...

I thought I was getting the hang of these but I'm stumped on this one too. Any advise on how to solve it? s e e d + i c e d ---------- s p i c e c= ___ d=___ e=___ i= ___ p= ___ s=___ Hint: Solve for s and i. Then is e is even or odd? Thanks.

### Algebra

I'm not sure if I have this correct I have to solve each literal equation for the indicated variable. A=1/2h(B+b)variable is (b). I have the answer as: 2A=h(B1+b2) 2A/h=B1+b2 (2A/h)-b2=B1 Is this correct? weren't you supposed to solve for "b"? that would be b = (2A - Bh)/h or ...

### Algebra/Precalculus

Solve the system of linear equations and check any solutions algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, express x, y, and z in terms of the parameter a.) 3x-3y+6z=6 x+2y-z=8 5x-8y+13z=4 I don't know what parameter A is... Do I solve...

### problem solving

One small and one large animal puzzle kit cost \$16 altogether. If the large kit costs three times as much as the small kit, how much does each kit cost? 4 and 12 A= large animalpuzzle kit. a= small animal puzzle kit. A + a = 16 A = 3a ================= solve for A and a. Hint...

### algebra 2

again.. im lost with finding slope intercept and standard form of this equation as well. x intercept =2, y intercept= -4

### MATH

I really don't know how to do this, need as soon as possible. Please help! A rabbit population satis es the logistic equation dy dt = 2x10^-7y(10^6- y); where t is the time measured in months. The population is suddenly reduced to 40% of its steady state size by myxamatosis. ...

### algebra

Solve for x x/6-x/8 equals 1 Do fraction busters Find the least common denominator, which is 24. Change the fractions to where they have the same denominator. Change 1 to equal 24/24, and solve. Did this help? x/6 + x/8 = 1 multiply each term by 24, the lowest common ...

### Chemistry

A rock is 5.0% by mass fayolite(Fe2SiO4), 7.0% by mass forsterite(Mg2SiO4) and the remainder silicon dioxide. What is the mass percent of each element in the rock? I have the answers but i don't know how to solve the problem. How would you in steps solve the problem?

### CHEMISTRY:))))

A rock is 5.0% by mass fayolite(Fe2SiO4), 7.0% by mass forsterite(Mg2SiO4) and the remainder silicon dioxide. What is the mass percent of each element in the rock? I have the answers but i don't know how to solve the problem. How would you in steps solve the problem?

### physiscs

A 10g sample of an unknown ionic compound is dissolved, and the solution is treated with enough AgNO3 to precipitate all the chloride ion. If 30.1 g of AgCI are recovered, which of the following compound could be the unknown? A. NaCI B. NaNO3 C.BaCI2 D. Mg CI2 E.KCI Pleas help...

### Physics

When you see a traffic light turn red, you apply the brakes until you come to a stop. Suppose your initial speed was 12.9 m/s, and you come to rest in 35.0 m. How much time does this take? Assume constant deceleration. What equation do I use to solve this problem? You can show...

### Calculus

More questions on - finding dy/dx 1) y = sqrt 4 + sin 10 x - I am lost again 2) y = 10/sin x answer: - 10 csc x cot x 3) y = sin x/ 8x

### Algebra 116

1. Solve using the Elimination Method. 2r - 7s = -57 7r %2B 2s = 39 What is the solution set ______? 2. Simplify -8[-90-(-60-14)]= ______ 3. Solve using the Substition Method. 5x %2B 7y = 41 x = 61 - 8y What is the solution _______? 4. On three consecutive passes, a football ...

### Math - Algebra

A. Solve the following quadratic equations. Make sure to show all your work. Do not use any method (e.g. factoring, completing the square, quadratic formula, graphing) more than twice. Use the graphing method at least once. 1. 3x+2 + 11x -20 =0 2. x2 + 3x -4 =0 3. 3x2 - x - 1...

### algebra

solve each literal equation for the indicated variable linear equation for x 2x+3y=6 can some one give me a example and show me how the steps go to solve this problem please Subtract 3y from both sides of the equation, and then divide both sides by 2.

### physics

To solve you use y=VoT+aT2. You know that initial velocity is 0 so the fist term can be canceled and y=70. Than you just solve for T and divide 0.25 by T. a is acceration of gravity, 32.2 ft/(s^2) or (9.8 meters/second-squared). T = ?(2y/a) The T will be in seconds. Velocity...

### Math

The Restaurant's two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again ?

### Algebra-Multiple choice

Hello, I have some practice math I'm working through and I'm unsure about the answer. I will also put what I got. Thanks for the help. 1. Solve using any method and identify the system as consistent, inconsistent, or dependent. -2x+y=8 2x+2y=-8 A.) (-4,0); consistent/...

### Math

David refuels his car aﬁer every two days, Mary refuels hers after every four days while Ken refuels his after every eight days. If they all refuel their cars on 3rd March 2013, on which date did they refuel their cars together again?

### English

1. Referring to Mike's passage, complete the next passage about the way from school to your house. 1-2. Referring to Mike's passage, write the way from school to your house in the next incomplete passage. (There are two passages;one is Mike's passage, and the other is an ...

I just cannot seem to be able to grasp the concept of solving polynomial inequalities. Can someone please explain, step by step, how to solve them? Here's a problem I can't solve. Please use this as an example: (x-2)(x-5)<0 I cannot thank you enough for helping me with this...

### Calculus

I've been trying to solve the improper integral of ln(x)/sqrt(x) dx as a=1 and b=infinity I am required to solve for this question and according to my answer, it is divergent. However, my answer is infinity-4. Is it acceptable to say that infinity minus a number is simply ...

### english

Hi! Does anyone have a very difficult exercise on future tenses (will,going to and present continuous)? Almost impossible to solve? It can be some kind of a text, or typical gap exercise but it has to be for B2 or C1. I have checked almost the entire Internet but everything is...

### Geometry

Solve each equation below by completing the square: 1) x^2 + 6x = 16 My steps: x^2 + 6x - 16 = 0 (x - 2 )(x + 8) x = 2, -8 I set it to zero and factored it out. But my teacher said not do it that way and do it by dividing by 2 but I don't understand how that works. I got the ...

### French 1

Sorry my postings did not come through. I am trying again.Thanks I have to rewrite the following sentences replacing the words in parentheses with object pronouns. Am I correct here? Thanks much!!!! 1 J’ai ( mes ingredients) •

### OneMoreTime: S.S.

Sorryy, but we just started talkin bout this todayy in class, ... How did the wayy of life in the Industrial Age impact the population size?? (e.x. method of food production) once again SORRYYY!

### chemestry

Consider once again the magnesium nitride addition reaction from the previous question. This time, suppose you start with 10.0 g N2 and an unlimited supply of Mg. What is the maximum number of MOLES of Mg3N2 that could be produced in this case?