Friday

September 30, 2016
Total # Posts: 69

**Lost**

The formula p = nc - e gives the profit p when a number of items n are each sold at a cost c and expenses e are subtracted. If p = 3750, n = 3000 and e = 900, what is the value of c?

*August 26, 2016*

**Algebra Geometry 1 & 2**

A car traveled 281 miles in 4 hours, 41 minutes. What was average speed of the car in miles per hour?

*June 28, 2016*

**School subject mathe**

7x+5x+10x=

*March 5, 2016*

**pre algebra**

Compound Interest compounded semiannually A = P(1+(r/2))^2n r is annual rate as a decimal P is principle n is number of years A is present value A = 2000(1.0245)^16 = 2945.92

*December 15, 2015*

**Chelsea**

Solve the equation. (Find only the real solutions. Enter your answers as a comma-separated list.) x + 2 = 38 − (x/2)

*August 31, 2015*

**algebra **

What is the quotient in simplest form? state any restrictions on the variable x^2/x+4 divided by x-2/x^2+x-12

*June 3, 2015*

**Algebra**

Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?

*April 3, 2015*

**evans**

Find the least common denominator of the rational expressions. and

*November 23, 2014*

**algebra**

what is one fourth of thirteen?

*November 18, 2014*

**algebra**

thank you ms sue and damon

*August 25, 2014*

**algebra**

whys is 7-(-1) = 8, i don't understand why is it 8 how do you solve this!?

*August 25, 2014*

**ALGEBRA**

Checking algebra answer, Is it correct? 320km/1hr ↓ 320km /1hr →1m/1.609km =320m/1.609hr÷=199.3mph Answer: Round to nearest 10th =198.9mph

*August 25, 2014*

**math**

The wheelers' bill at a restaurant is $63.00.How much money should Mr.Wheeler leave as a tip 15%?

*April 6, 2014*

**math**

There are 22 students on the debate team. The number of boys is two more than three times the number of girls. How many boys are on the team?

*March 18, 2014*

**cv**

all the possible values of n that are solutions to 7n−(9n+1)>5.

*November 24, 2013*

**cv**

possible values of n for 7n−(9n+1)>5

*November 24, 2013*

**Computer Science**

I don't know.

*September 9, 2013*

**math**

kenny can assemble a desk in 40 minutes while his friend paul can assemble the same desk in 20 minutes. kenny worked for 10 minutes and decided to ask paul to work together with him to finish the job earlier, so that they can go to see a football game. how many more minutes ...

*August 1, 2013*

**Kos**

simplify. 5 _____ -5 - 3√3

*April 17, 2013*

**UOP **

Use the value d= rt to find the variable D= 100 feet t =25 second

*March 24, 2013*

**science**

A 1.98 10-9 C charge has coordinates x = 0, y = −2.00; a 2.73 10-9 C charge has coordinates x = 3.00, y = 0; and a -4.95 10-9 C charge has coordinates x = 3.00, y = 4.00, where all distances are in cm. Determine magnitude and direction for the electric field at the ...

*January 9, 2013*

**math**

Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . Please show all work

*December 31, 2012*

**math**

Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . Please show all work

*December 3, 2012*

**Algebra**

he spreadsheet shows the length of 3 movies in each of 3 categories. Choose the formula that could be used in cell B2. Â A B C D E 1 Type of Movie Movie 1 (min. long) Movie 2 (min. long) Movie 3 (min. long) Mean Length 2 Animated 72 63 84 73 3 Drama 92 104 113 103 ...

*October 15, 2012*

**Finance**

Find the amount of compound interest earned in an account that opens with $24,000, earns 7.8% interest compounded daily, and is held for 20 years. Assume 360 days in a year. (Round your answer to the nearest cent.)

*August 29, 2012*

**Physics**

5 waves pass in 26 seconds, period = 26 sec / 5 waves = 5.2 seconds, f = 0.192 hz

*April 6, 2012*

**algebra**

When you solve a system of equations by the substitution method, how do you determine whether the system of equations is inconsistent?

*March 21, 2012*

**algebra**

Explain how you can determine from the graph of a system of two linear equations in two variables whether it is an inconsistent system of equations.

*March 21, 2012*

**physics**

If I1 is the intensity at a distance 150 m from the source and I2 is the intensity at a distance of d m from the source , I1 *150^2 = I2 *d^2 d^2 =[ I1 / I2 ]*150^2 [I1 / I2] = 1.9 /0.8= 2.375 d^2 = 2.375*150^2 d =231.17 m.

*December 3, 2011*

**Math**

1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation: , where C is a constant, ...

*October 21, 2011*

**Algebra**

Thanks! got it.

*May 31, 2011*

**algebra**

a city's main well was recently found to be contaminated with trichloreathylene (a cancer-causing chemical) as a result of an abandoned chemical pump that leached chemicals into the water. a proposal submitted to the city council indicated that the cost, in millions of ...

*May 26, 2011*

**math**

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 34 cm when the weight is 3 kg, what is the distance when the weight is 9 kg? 22. Find the variation constant and an equation of variation where y ...

*May 15, 2011*

**Algebra**

Add and simplify: 2/x^2-16 + 3/x^2 -2x-8 Now if the numerator of your answer equals 6, what does x equal? My answer of 5x+16/(x-4)(x+4)(x+2) does not match theirs. The correct answer is -2. I don't know how they got there.

*May 5, 2011*

**algebra**

Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter

*January 20, 2011*

**algebra**

The loan arranger? I'm just guessing I haven't started the worksheet

*December 2, 2010*

**Math: Calculus**

njdsdhdj

*November 17, 2010*

**spanish**

someone translate please Como son la mujer y las dos mudchachas del cuadro? Quien es la mujer, y que relacion hay entre ella y las ninas? Escrbibe una descripcion de las tres personas

*September 28, 2010*

**algebra**

solve for r: I = prt

*September 27, 2010*

**algebra**

i have another ? find the slope if it exists of the line containing the pair of points (-5.5,13.6) and (-5.3, 7.8) the slope m=?

*December 20, 2009*

**algrebra**

it also says im supposed tp find an equation of the line containing the given pair of points?

*December 20, 2009*

**algrebra**

so what is y= then?

*December 20, 2009*

**algrebra**

(2,4) and (6,6) what is the equation of the line y=

*December 20, 2009*

**math**

please solve this for me.. i feel as if i am doing this wrong.. (1000/s-120)- (1000/s) = 1/2

*September 21, 2009*

**Algebra**

could you show me how to solve for x it is killing me y/x^2 = b/(a-x)^2

*September 13, 2009*

**algebra**

if a=3b for b The solution is b =a/3 Do I understand this correctly now?

*September 11, 2009*

**algebra**

I did that wrong c=2d for d the solution is d= c /2 Correct

*September 11, 2009*

**algebra**

I still don't get it does that mean b=3

*September 11, 2009*

**algebra**

a=3b for b The solution for a = b=3a did I do this backwards?

*September 11, 2009*

**algebra**

solve -0.6x < -12 I come up with {x|>20

*September 11, 2009*

**algebra**

Then I get 12

*September 11, 2009*

**algebra**

solve y-8> -20 I get 28 am I correct?

*September 11, 2009*

**algebra**

So they would be Parallel correct? Thank you

*September 11, 2009*

**algebra**

2x + 3y =6 2x + 3y = 4 I get these lines are neither parallel or perpendicular. Am I doing this right?

*September 11, 2009*

**algebra**

That does not come out right.

*September 11, 2009*

**algebra**

evaluate x + y/8 x=65 and y=7

*September 11, 2009*

**algebra**

simplify 5[-8-(34-49)]

*September 11, 2009*

**algebra**

Pleas help with this. Explain the steps so I can understand what I am doing. solve 0.3x + 9<_ 0.7x -8 the solution is {x|x ? ? } _ this line is suppose to go under the 9 but I don't know how on computer do you?

*September 11, 2009*

**Algebra**

can show me how to do this with out just squaring 3x^(1/2) - x - 6 = 0 how do i do this and solve for x with out just squareing and using quadratic formula. I was never taught the proof of the quadratic formula and would like to know how to do with without squareing and if ...

*May 27, 2009*

**Algebra**

X^2=14X+5X I got Lost and on this one -2X(X+7) - (X+7) I need to factor these problems

*December 7, 2008*

**Math**

how do i factor 8X^2+10X-3 I know the answer is (4X-1)(2X+3) I just guessed and checked not sure about thorught process thats suppose to go trough my head here when dealing with a number before X^2 please tell me cuz i can get the answer by guessing but that takes to long

*December 7, 2008*

**Algebra**

this is same person from before what am I exactly suppose to do when I'm asked to factor 2X(3X+4)-3(3X+4)

*December 7, 2008*

**Ap World History**

thanks

*December 7, 2008*

**Algebra**

(X-7)(X-5)

*December 7, 2008*

**Algebra**

thanks

*December 7, 2008*

**Algebra**

ello i need help factoring I haven't had factorin sense Algebra one and now am in Algebra two and our school is screwed up were they shove in a year of Euclidean Geometry and Basic Trig inbetween first two years of Algebra... so i need to factor X^2-12X+35 I can sit there ...

*December 7, 2008*

**algebra**

How would i solve this question? In 06, 74.2 million tax returns were filed electronically. This represents a 108% increase over the year 2005. How many income tax returns were filed electronically in 2005? Do I multiply 74.2 x 1.08?

*August 29, 2008*

**meg**

find the real solutions x= y^2 - 9 x-4y-12= 0 I got x= -3 and y= 7 and x= 40 but how do i know what x to use and whats the ordered pair? I'm confused! help please!

*April 6, 2008*

**John**

min/max point minimum or maximum f(x)=2x^2+8x-2 a=2 x=(-b)/(2a)=(-8)/(2)(2)=-4 x=-4 y=2(-4)^2+8(-4)-2 2(16)-32-2 32-32-2 y=-2 (-4,-2) axis of symmetry is x=-4 range[-2,oo] minimum value -2

*April 3, 2008*

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