Questions on Algebra: Numeric Fractions answered by real tutors!

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Question 135643: If 5x 10n= 0.005 then what is z.
Click here to see answer by nycsharkman(136)

Question 123211: I need to find a value of n to make this statement true.

Click here to see answer by waiwai933(6)

Question 135985: 54-6 divided by 2 +2=? I just want to make sure I understand the answer, you start by dividing, then subtract 54 - the answer by dividing (3) then add the 6 which gives you 57
Click here to see answer by checkley77(7172)

Question 136212: how do you work out this fraction? 1- 3/4 (one minus three fourths)
Click here to see answer by longjonsilver(2297)

Question 136044: 1/8 - 3/5 = 1/x Solve for x?
Click here to see answer by JSmall(7)

Question 136349: 6=3/8r PLEASE HELP!!!!!!
Click here to see answer by vleith(1983)

Question 136845: I need to know how to subtract fractions of a number.
My problem is 15 - 2/3.
Thanks
Click here to see answer by checkley77(7172)

Question 137335: 2/x-2+5/x+2=-6x/x^2 -4
Click here to see answer by stanbon(26367)

Question 137479: For all values of x for which the expression is defined, / is equivalent to
A)
B)
C)
D)
Click here to see answer by oscargut(682)

Question 137486: For all values of x for which the expression is defined, is equivalent to
A)
B)
C)
D)
Click here to see answer by checkley77(7172)

Question 139243: I forgot how to do this, and I have a nursing entrance exam tomorrow. I hope someone can help. Thanks!
4 1/4% of (?)=85
Click here to see answer by stanbon(26367)

Question 139494: ABC*4 = CBA
what will be the values of A , B and C?
Click here to see answer by MathTutorer(13)

Question 139529: if 5 x 10n=0.005, then n=?
Click here to see answer by MathLover1(1183)

Question 139523: 4/5 = -11r - 2/3
Click here to see answer by jim_thompson5910(13810)

Question 140081: What is the last digit in the expanssion of (777) to the power of 777.
Click here to see answer by checkley77(7172)

Question 140191: the perimeter of a rectangular photograph is 36 cm The length is 4 cm greater than the width. Find the width and the length

Click here to see answer by amethyst is 17(2)

Question 140265: 1\16+1\8+1\4=
Click here to see answer by vijay(6)

Question 140922: sixteen men can completed a work in 15 days. 24 children can do the same in 20 days. in how many days will 8 men and 8 children together completed the same work.
Click here to see answer by stanbon(26367)

Question 141418: -3/2 - -2/3
Click here to see answer by rapaljer(3631)

Question 141642: x/3+8=11 solve for x
Click here to see answer by nabla(412)

Question 142346: Solve
x -3/4 - x/7 = 5
Click here to see answer by stanbon(26367)

Question 142486: Solve:
5/3x = 4/5 + x
Click here to see answer by stanbon(26367)

Question 142485: Solve
(for x) 7y/x - 2 = d/a
Click here to see answer by MathLover1(1183)

Question 142877: Simplify
7a/a-b
_______
4b/a+b
Click here to see answer by vleith(1983)

Question 142881: Simplify
(20 x 10 -4 power)(4 x 10 ninth power)
______________________________________
3,200 x 10 -3power
Click here to see answer by stanbon(26367)

Question 142960: Perform the indicated operations
5x -2/x2nd power - 5x -14 - 3/x2nd power + 2x
Click here to see answer by stanbon(26367)

Question 142956: Simplify
3x/x + y - 2y/x
x/1*3x/x+y/1*x/1-2y/x*x/1
3x+xy-2y
Click here to see answer by johanna(2)

Question 142312: if x= -1 and y = 2 what is the value of the expression 2x3 -3xy?
the 3 is small
Click here to see answer by johanna(2)

Question 143339: i'm 53 and starting college. tested college level on everything but math. absolutly cluess about algebra. don't know where to begin with sample question on this sight. change these numbers to proper fraction 5 (top number)
6 (bottom number)
Click here to see answer by stanbon(26367)

Question 143517: The number 2/3 belongs to what subsets of real numbers?_________
Click here to see answer by nabla(412)

Question 143617: Solve
5/4x = 3/x - 2
Click here to see answer by ptaylor(1580)

Question 143510: Solve
5/4x = 3/x -2
Click here to see answer by ankor@dixie-net.com(6707)

Question 143682: Please help me with these..I'm beginning courses and don't even know where to begin!
9/6=x/8
If the total cost of x apples is b cents, what is a general formula for the cost, in cents, of y apples?
Click here to see answer by rapaljer(3631)

Question 143821: Solve.
Jeff takes 5 hours longer to build a fence than it takes Bill. When they work together, it takes them 6 hours. How long would it take Bill to do the job alone?
Click here to see answer by checkley77(7172)

Question 143820: Solve
An experienced accountant can balance the books twic as fast as a new accountant, Working together it take the accountants 10 hours. How long would it take the experienced accountant workign alone?
Click here to see answer by checkley77(7172)

Question 143819: Use Synthetic Division to divide.
(x^4+625)/(x-5)
Click here to see answer by checkley77(7172)

Question 143934: DR MENTO HAS A CLASS OF 80 STUDENTS. FOR A GROUP PROJECT SHE WANTS TO DIVIDE THE STUDENTS INTO GROUPS OF 6, 8, 10. IS THIS POSSIBLE? EXPLAIN YOUR ANSWER.
Click here to see answer by vleith(1983)

Question 143949: Simplify
x/x2nd power - 16 divided by x3power/x2nd power - 14x + 40
Click here to see answer by stanbon(26367)

Question 143933: What is 4 1/5*10/21*9/20=
I cant seem to figure this one out.
Click here to see answer by JSmall(7)

Question 143999: 3/5=-5k/3 (solve for k)
i thought that you turn it into a product and make 3x-5k/15 then you cancell out the 3 and get -5k/5 then cancell out the -5 and get k but my math book says the answer should be k=-9/25 and i'm not sure how to get that answer
Click here to see answer by vleith(1983)

Question 144128: I cant for the life of me remember how to do this, your help would be appreciated asap. 5/6x + 4/3y =
Click here to see answer by edjones(3330)

Question 144397: You answered this question wrong, because the poster wrote it wrong: If x = –1 and y = 2, what is the value of the expression 2x3 – 3xy ?
The actual question is this: If x = –1 and y = 2, what is the value of the expression 2x^3 – 3xy?
I know the answer is 4. But I don't know HOW to get there.
Click here to see answer by jim_thompson5910(13810)

Question 144454: Ok, I did a problem which was changing improper into to proper fractions. The problem was 5/3. It came up with 1.666666667. The answer was 5/3 + 1 2/3. I don't understand where the 2 came up at? I know the 1 was the first number of the decimal, but what about that 2?
Click here to see answer by Alan3354(6153)

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