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Question 48557: Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)
for t
Click here to see answer by algebrapro18(206)

Question 48574: This might not be the right section, but here it goes: I'm taking a C++ programming class now and they just skimmed over reviewing math.
What does the following mean in a problem?
&&
== // I think I got this, means 'is exactly equal to'.
the ! in !(blah blah blah)
and ll (two vertical lines)
Thanks,
John
Click here to see answer by longjonsilver(2297)

Question 48616: How do you solve 2(-4)^2?
Click here to see answer by caroline(3)

Question 48615: How do you solve 4-3(12+2)?
Click here to see answer by caroline(3)

Question 48614: How do you solve (-5)(-3)(+2)?
Click here to see answer by tutorcecilia(2042)

Question 48614: How do you solve (-5)(-3)(+2)?
Click here to see answer by checkley71(8405)

Question 48613: How do you awnser 9+3-18?
Click here to see answer by checkley71(8405)

Question 48648: solve and check the following equation for x.
x/6 - x/8=1
Click here to see answer by checkley71(8405)

Question 48646: Kevin earned $165 interest for 1 year on an investment of $1500. at the same rate, what amount of interest would be earned by an investment of $2500?
Click here to see answer by checkley71(8405)

Question 48644: A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10h, what is the plane's speed still in the air?
Click here to see answer by checkley71(8405)

Question 48680: A,B and C can finish a job in 6 days. If B and C work together, the job will take 9 days; if A and C work together, the job will take 8 days. In how many days can each man working alone do the job?
Multiple Choice:
A. A in 9 days, B in 1 day, and C in 8 days
B. A in 18 days, B in 24 days, and C in 14 2/5 days.
C. A in 20 1/2 days, B in 16 days, and C in 25 days.
D. A in 25 days, B in 12 2/3 days, and C in 28 days.
Click here to see answer by stanbon(26259)

Question 48679: A person traveling 4 hrs by plane and 25 hrs by ship covers 1580 miles. If the speed of plane had been one-half of the actual speed and the speed of the ship had been one-fourth greater, the person would have traveled only 1315 miles in the same length of time. Find the speeds of the plane and the ship.
Thanks A Bunch!
Click here to see answer by venugopalramana(3286)

Question 48706: I have one more for you Stan, thanks for the last one. Here it goes.
What amount of each mixture, one 95% alcohol and the other 15% alcohol, must be used to make 10 liters of a mixture which is 45% alcohol? What equation or equations will express this problem?
A. 0.95x + 0.15y = 10 0.45(x+y) = 0.45 x 10

B. 0.95x + 0.15x = 0.45
C. 0.95x + 0.15(10 - x)= 0.45 x 10
D. x + y = 10 0.45x + 0.95y = 0.45 x 10

Click here to see answer by stanbon(26259)

Question 48710: How do you sove: x^2-2x+7 if x=3

Click here to see answer by stanbon(26259)

Question 48711: How do you solve x-3/x-6 if x=12?
Click here to see answer by stanbon(26259)

Question 48652: solve the following equation for x.
2/5 + x-2/20
Click here to see answer by checkley71(8405)

Question 48751: solve the following equation for x.
2/5=x-2/20
Click here to see answer by checkley71(8405)

Question 48741: How do I figure out 43x = x ?
Click here to see answer by longjonsilver(2297)

Question 48793: How do you solve: (x+2)(x-3)?
Click here to see answer by dead_famous1991(7)

Question 48791: How do you solve: 8(x+3)?
Click here to see answer by dead_famous1991(7)

Question 48794: How do you solve: 6x+8/2?
Click here to see answer by checkley71(8405)

Question 48792: How do you solve: 3(x^2+2x-1)?
Click here to see answer by checkley71(8405)

Question 48757This question is from textbook prealgebra
: 3-2/5 x=6This question is from textbook prealgebra

Click here to see answer by checkley71(8405)

Question 48846: I need to know how to solve this problem:
-3(3x-15)-(10+x)=35
Click here to see answer by checkley71(8405)

Question 48841: Adult tickets for a play cost $17 and child tickets cost $8. If there were 24 people at a performance and the theater collected $363 from ticket sales, how many children attended the play?
I come up with 6 children but I do not think it is correct....please help
Click here to see answer by checkley71(8405)

Question 48834: Simplify: 8x-17x+23x-36x
Click here to see answer by checkley71(8405)

Question 48882: factor completely: 6m^2n - 12mn^2 + 18mn
Click here to see answer by checkley71(8405)

Question 48883: solve: Find the number.
Click here to see answer by rajagopalan(125)

Question 48911This question is from textbook
: 3b+1=13;4This question is from textbook

Click here to see answer by Nate(3495)

Question 48905: 1/2x-2/3x=25/12
Click here to see answer by alka001(14)

Question 48885: write in simplest form: (16x ^2 - 100) divided by [(12x + 30) * (4x^2 -10x)]
Click here to see answer by gsmani_iyer(161)

Question 48886: solve: 20/x-3 - 4 = 10/x+3
Click here to see answer by alka001(14)

Question 49001: A person weighs 0.5% less at the Equator than at the North or South Poles. How much would a person weigh at the Equator if the person weighed 148 pounds at the North Pole?
Click here to see answer by checkley71(8405)

Question 49002: Marcie weighs 133 pounds and sits 6 feet from the fulcrum of a seesaw. She balances with Rosalinda if Rosalinda sits 7 feet from the fulcrum. How much does Rosalinda weigh? Please explain.
Click here to see answer by checkley71(8405)

Question 49021: (x-5)/a+1=b
solve for 'x'
this is what i get, am i right?
-5+1a=ab x-5=ab-1a x=ab-a+5?
Click here to see answer by ikdeep(182)

Question 49051: SOlve
Click here to see answer by Nate(3495)

Question 49050: Solve the equation
Click here to see answer by Nate(3495)

Question 49084: How do you solve the following:
If g(x)=xsquared-6x+3 over x+4, find g(-2)
Click here to see answer by Earlsdon(4898)

Question 49236This question is from textbook algebra structure and method book 1

: z*8=zThis question is from textbook algebra structure and method book 1

Click here to see answer by AnlytcPhil(958)

Question 49251: would you please help me solve this problem or if you can give an example of how to do it because I forgot how to do it but i just need a example please i would apreciate heres the problem

3x^2+5x-2=0
Click here to see answer by Earlsdon(4898)

Question 49250This question is from textbook beginning algebra

: x + 7 =12 (5) mr jon can i please have some help i have submittd this problem 4 times alrealdyThis question is from textbook beginning algebra

Click here to see answer by Earlsdon(4898)

Question 49240: Please help with this question. This is my first homework for Geometry, I have had Algebra I and these are review questions. It is from a worksheet and our teacher did not want to give us any help the first day of school after three months away from Algebra. Thank you.
2(3-x)= 16(x+1)
I have got to 6-2x = 16x+16
I am confused on what to do to each side of the equation to get the right answer.

Click here to see answer by Earlsdon(4898)

Question 49286: Rewrite the equation 2x – 8y = 48 as a function of x.
Click here to see answer by AnlytcPhil(958)

Question 49242This question is from textbook beginning algebra

: x+7=12(5)This question is from textbook beginning algebra

Click here to see answer by TheAntiheroX9(4)

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