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Question 42928: 2 over c^2d + 7 over cd^3=
unlike denominators
Click here to see answer by fractalier(1804)

Question 42927: Solve the equation.

Click here to see answer by aaaaaaaa(138)

Question 42999: Rewrite the equation -8x-5y=-45 as a function of x
Click here to see answer by checkley71(8405)

Question 43018:
In year 2004 the person weighted 160 pounds, year 2005 the person weighed 168 pounds, and year 2006 the person weighed 175 pounds, create an equation or inequality of the year and the weight. Draw a straight line graph to depict the variable in the situation of the weight increases.
Click here to see answer by stanbon(26259)

Question 43031: Hello... I need help this is a block question where you have to find the equation ok for the first step the # of blocks is 4 so the difference is 0, step 2 has 9 # of blocks and the difference is 5, step 3 has 16 blocks and a difference of 7, step 4 has 25 blocks and a difference 9, step 5 has 36 blocks and a difference of 11....... the 10th step has 121 blocks and a difference of 21 I think this is called the Nth step or increasing numbers please HELP
Click here to see answer by stanbon(26259)

Question 43042: I know I make common mistakes when solving equations can you help with the following:
The equation: 2(x -2) =x+3
First step in solving: 2x-2 =x+3
Can you tell me a clear explanation of what error has been made. What could be done to avoid this error?

Click here to see answer by AnlytcPhil(958)

Question 43056: 8x+9x
Click here to see answer by aaaaaaaa(138)

Question 43075: {X2+3x+1}+ {X2+x+6}
exponent-X2
Click here to see answer by fractalier(1804)

Question 42776: did i do this right?
rounded 2 decimal places the approximate x intercept of the equation x^3+14.2x^2-4.8x-12.4=0
in standard window
i got 53.44??????????????
Click here to see answer by venugopalramana(3286)

Question 43087This question is from textbook College Algebra
: Please help with this, it is problem 64 from the College Algebra Textbook ISBN:061831850
Solve the equation and check your solution. (if not possible explain why)
(10x+3)/(5x+6) = 1/2
Thank you
This question is from textbook College Algebra

Click here to see answer by Nate(3495)

Question 43088This question is from textbook College Algebra
: Please help with this one too, it's from College Algebra ISBN:0618313850 pg 94
#70

(7)/(2x+1) - (8x)/(2x-1) = -4

Thank you very muchThis question is from textbook College Algebra

Click here to see answer by Nate(3495)

Question 42943: 3a over 4a-20 + 9a over 6a-30
show work
Click here to see answer by fractalier(1804)

Question 43184: How do you solve for n in p=x+(n-2)y
I need to see each step on how to solve this. And it would be nice if you could explain why you did each step. Thank you very much.
Click here to see answer by Nate(3495)

Question 43174: Solve the equation.

Click here to see answer by checkley71(8405)

Question 43322: can someone take a look at this one please. Thank you!
2x^2 = 6x

Click here to see answer by psbhowmick(456)

Question 43349: In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation.Projections are that 100 items will cost 10,000 to produce and that 300 items will cost 22,000 to produce. find the equation that relates C and x
Click here to see answer by stanbon(26259)

Question 43359: y + 4 over y=-5
show work
Click here to see answer by stanbon(26259)

Question 43350: L has y-intercept (0,2) and is perpendicular to the line with equation 2x- 3y= 6.
Write the equation of the line passing through each of the given pair points. Whats the result in solpe-intercept form ?
Click here to see answer by venugopalramana(3286)

Question 43373: Hello!
Can someone help please?
My question is:
Two trains travel in the same direction at 50 kilometres per hour and 32 kilometres per hour respectively. A man in the slower train observes that 15 seconds elapse before the faster train completely passes him.
What is the length of faster train?
Thank you for your help and time.
geomar
Click here to see answer by longjonsilver(2297)

Question 43384: graph the functions f(x)=-2x-5
Click here to see answer by psbhowmick(456)

Question 43385: If f(x)=4x-3, find the following f(-1)
Click here to see answer by psbhowmick(456)

Question 43386: If f(x)=5x-1, find the following f(a-2)
Click here to see answer by AnlytcPhil(958)

Question 43386: If f(x)=5x-1, find the following f(a-2)
Click here to see answer by psbhowmick(456)

Question 43388: graph the inequality
3x-4y <12
Click here to see answer by psbhowmick(456)

Question 43389: after graphing the boundary line for the linear inequality. Determine the correct half plane in this case and complete the graph
y>3
Click here to see answer by benni1013(141)

Question 43321: can someone please solve this one...
use Gauss-Jordan elimination and solve this
3x - y = 5
4x + 2 = 10
Click here to see answer by venugopalramana(3286)

Question 43387: solve the following application involving functions
exercises 54) If the inventor of exercise 53) charners $4 per unit, then his profit for producing and selling x unints is given by the function P(x) =2.25x-7000
a) what is her profit if she sells 2000 units?
b) what is her profit if she sells 5000 units?
c) what is the break-even point for sales?
exercise 53) the inventor of a new product believes that the cost of producing the product is given by the function c(x)=1.75x+7000
How much does it cost to produce 2000 units of her invention
Click here to see answer by benni1013(141)

Question 43383: Rewrite the equation as a function of x.
-3x+4y=11
Click here to see answer by benni1013(141)

Question 43381: Evaluate each function to the value specified
f(x) =x squared - 7x + 10; find (a)f(0), (b)f(5), and (c)f(-2)
Click here to see answer by fractalier(1804)

Question 43380: You have at least $30 in change in your drawer, consisting of dimes, and quaters. Write an inequality that shows the different numbers of coins in your drawer.
Click here to see answer by fractalier(1804)

Question 43355: solving rational expressions and equations

7 over 8 + 2 over 5 = x over 20
show work
Click here to see answer by fractalier(1804)

Question 43420This question is from textbook College Algebra
: Please help with this, i need help with the formula more so than the answer. The problem is as follows
The price of a swimming pool has been discounted 16.5%. The sale price is $1210.75. Find the original list price of the pool.

thanksThis question is from textbook College Algebra

Click here to see answer by stanbon(26259)

Question 43424: 5+3[1+2(2X-3)]=6(X+5)
Click here to see answer by jmg(22)

Question 43465: a^2-4 over a^2+3a+2
over
a^2-5a-6 over a^2-6a-7
having problems
show work
Click here to see answer by Nate(3495)

Question 43496: grade 10th problem 20:
WRITE THE EQUation of the line passing through each of the given pairs of points. write the result in slope-intercept form,if possible.

(-1,3) and (4,-2)
Click here to see answer by Nate(3495)

Question 43498: which of the following pairs of points both lie on the line whose equation is 3x-y=2 ?
a) (3,-2) & (1,5)
b) (2,4) & (3,7)
c) (2,4) & (1,5)
d) (2,-2) & (1,5)
e) (3,7) & (3,-2)
Click here to see answer by Nate(3495)

Question 43379: Please graph the inequality 4x+y is greater than or equal to 4
Click here to see answer by Nate(3495)

Question 43527: 6X + 4(3X - 2) = 6X + 2
My options are:
A)5/6
B)9/5
C) 12
D)0
Can someone help me with this...I can't figure this out.
Click here to see answer by Nate(3495)

Question 43528: How would I do this kind of problem
A telephone number consists of seven digits, the first three representing the exchange. How many different telephone numbers are possible within the 537 exchange?
Click here to see answer by Nate(3495)

Question 43577: Solve the equation: x-3-sqrt of x-1=0
The answer is one of the following: A.x=1,7 B.x=2,5 C.x=5 D.x=7
Thank you for your time!
Click here to see answer by stanbon(26259)

Question 43572: How do you solve (x+b)(x-b)=x(x-5) for x? I would like to see every step and it would be nice if you could explain why you did each step. Thank you very much.
Click here to see answer by stanbon(26259)

Question 43576: Find the solutions to the equations:|2x-14|=6
Answer is one of the following: A. x=-4,10 B. x=4,10 C. x=11,17 D. x=12,14
Thanks!
Click here to see answer by Nate(3495)

Question 43576: Find the solutions to the equations:|2x-14|=6
Answer is one of the following: A. x=-4,10 B. x=4,10 C. x=11,17 D. x=12,14
Thanks!
Click here to see answer by venugopalramana(3286)

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