Questions on Algebra: Inverse operations for addition and multiplication, reciprocals answered by real tutors!

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Question 151619: a recent safaria had people dand elephants there were 100 knees and 100 trunks each person took 3 trunks. how many people and elephants were there?: a recent safaria had people dand elephants there were 100 knees and 100 trunks each person took 3 trunks. how many people and elephants were there?
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Question 151290: If two numbers are opposite of each other, are their reciprocals also opposite of each other?: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
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Question 151254: soccer team raised 400.00 for equipment. will cost 41.50 for each of the 15 players How much more will each player have to pay?: soccer team raised 400.00 for equipment. will cost 41.50 for each of the 15 players How much more will each player have to pay?
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Question 150989: i need to know the function of x in this problem
1
______________________________________________ (over)
x (to the third) -1401x(to the second)+654267 x
: i need to know the function of x in this problem
1
______________________________________________ (over)
x (to the third) -1401x(to the second)+654267 x

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Question 150617: Find the multiplicative inverse of 2.25

ok..I get that multiplicative inverse of 7 is 1/7 and 2/3 is 3/2...but I do not for some reasom get the the multiplicative inverse of 2.25!!!! Please explain thanks
: Find the multiplicative inverse of 2.25

ok..I get that multiplicative inverse of 7 is 1/7 and 2/3 is 3/2...but I do not for some reasom get the the multiplicative inverse of 2.25!!!! Please explain thanks

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Question 150440: 1 1/3+2+3/4=
1/4divided by3/2=
ratio of 2 to 5 = what percent
12:30 as a percentage
: 1 1/3+2+3/4=
1/4divided by3/2=
ratio of 2 to 5 = what percent
12:30 as a percentage

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Question 150062This question is from textbook
: Find the inverse of
f(x)= 25x-8/3. its 25x-8 sitting over 3
This question is from textbook
: Find the inverse of
f(x)= 25x-8/3. its 25x-8 sitting over 3

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Question 149567: Please help me find the inverse matrix of:
3 1 2
3 2 -1
1 1 1
Thanks, Lindsey
: Please help me find the inverse matrix of:
3 1 2
3 2 -1
1 1 1
Thanks, Lindsey

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Question 149154: Find the multiplicative inverse of 2.25.: Find the multiplicative inverse of 2.25.
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Question 148468: If two numbers are opposite of each other, are their reciprocals also opposite of each other?: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
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Question 148015: Reciprocal for (-1/5)(20/5))10): Reciprocal for (-1/5)(20/5))10)
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Question 148016: Reciprocal for (-1/5)(20/5)(10): Reciprocal for (-1/5)(20/5)(10)
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Question 147878: Find an equation for the inverse of the relation y = 6x + 3: Find an equation for the inverse of the relation y = 6x + 3
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Question 147880: Please help me with this
What is the equation for the inverse of the function f (x) = 4x - 3?
: Please help me with this
What is the equation for the inverse of the function f (x) = 4x - 3?

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Question 146837: If two numbers are opposite of each other, are their reciprocals also opposite of each other?: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
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Question 145734: Solve -2z - 43 = -17 using inverse operations.: Solve -2z - 43 = -17 using inverse operations.
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Question 145392: 3/4x – 5= 2/3x: 3/4x – 5= 2/3x
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Question 141719This question is from textbook passport to algebra and geometry
: 11m-4m-m=48This question is from textbook passport to algebra and geometry
: 11m-4m-m=48
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Question 141719This question is from textbook passport to algebra and geometry
: 11m-4m-m=48This question is from textbook passport to algebra and geometry
: 11m-4m-m=48
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Question 141801: 5x+10=15
6x-12=18
2x+11=21
6x-16=20
4x+12=24
: 5x+10=15
6x-12=18
2x+11=21
6x-16=20
4x+12=24

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Question 123722: Please help me solve this equation:
Subtract and simplify
7/9-11/18=
: Please help me solve this equation:
Subtract and simplify
7/9-11/18=

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Question 141238: 4M=-10: 4M=-10
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Question 141226: I need help answering this question. I really do not understand.
If two numbers are opposite of each other, are their reciprocals also opposite of each other?
: I need help answering this question. I really do not understand.
If two numbers are opposite of each other, are their reciprocals also opposite of each other?

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Question 141170: please help. what is the reciprocal of 3x/y/y/x thanks: please help. what is the reciprocal of 3x/y/y/x thanks
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Question 141171: please help. what is (x^3-121x)divided by (x+11) thanks for helping: please help. what is (x^3-121x)divided by (x+11) thanks for helping
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Question 140286: I am having trouble with this problem.
R varies inversely with S. If R is 40 when S is 2, find S when R is 16.

B) How many digits does the smallest repeating block of the decimal expansion of 5/13 have?
thankyou for your time. Bill
: I am having trouble with this problem.
R varies inversely with S. If R is 40 when S is 2, find S when R is 16.

B) How many digits does the smallest repeating block of the decimal expansion of 5/13 have?
thankyou for your time. Bill

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Question 140134: if x varies directly as y, and x=42 when y = 6, find x when y = 7: if x varies directly as y, and x=42 when y = 6, find x when y = 7
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Question 140126: Please help me solve this question. I have a full worksheet to complete. If you can help me with this one I can use it as an example to finish the rest.

(X^(n-4)Y)^3(X^6Y^(n+4))^2
: Please help me solve this question. I have a full worksheet to complete. If you can help me with this one I can use it as an example to finish the rest.

(X^(n-4)Y)^3(X^6Y^(n+4))^2

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Question 139048: 5x+7=47: 5x+7=47
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Question 136880: simplify:14/-2
5(-4)
7-(-3)
-7(4)
x-5=-3
4x=-8
x/2=-8
-2x=6
x/-5=4
: simplify:14/-2
5(-4)
7-(-3)
-7(4)
x-5=-3
4x=-8
x/2=-8
-2x=6
x/-5=4

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Question 136622This question is from textbook PREALGEBRA
: HOW DO I BEGIN TO SOLVE THIS PROBLEM?This question is from textbook PREALGEBRA
: HOW DO I BEGIN TO SOLVE THIS PROBLEM?
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Question 135610: I am asked to show how to simplify the following:
3/8x -1/6y - 1/16x + x - 1/3y
The answer that I was given is 21/16x - 1/2y.
I understand how 21/16x is derived however I do not understand how 1/2y is the answer. Can yo please help?
: I am asked to show how to simplify the following:
3/8x -1/6y - 1/16x + x - 1/3y
The answer that I was given is 21/16x - 1/2y.
I understand how 21/16x is derived however I do not understand how 1/2y is the answer. Can yo please help?

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Question 134933: Determine whether the following pairs are invers of eachother
a. f9x0=8x-7 and g(x)=x+8/7
b. f(x)= 1/x and g(x)= 1/x
c. f(x)= 2x+3/x-1 and g(x)=x+3/x-2
: Determine whether the following pairs are invers of eachother
a. f9x0=8x-7 and g(x)=x+8/7
b. f(x)= 1/x and g(x)= 1/x
c. f(x)= 2x+3/x-1 and g(x)=x+3/x-2

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Question 134741: Find the inverse of
f(x)= 4-x divded by x+6
a. Sate the domain
b. State the domain of f1(x)
c. State the range of f(x)
: Find the inverse of
f(x)= 4-x divded by x+6
a. Sate the domain
b. State the domain of f1(x)
c. State the range of f(x)

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Question 99902: what is 7v+6<-22 or 11-v<19: what is 7v+6<-22 or 11-v<19
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Question 123728: Please help me solve this equation:
What is the simplied quotient
Divide and simplify:
6/5 divided by 7/5
: Please help me solve this equation:
What is the simplied quotient
Divide and simplify:
6/5 divided by 7/5

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Question 132658: Please help.
1.Solve these using the multiplication principle.
9x = 90
-x = 42
-x/4 = 11
-3/5x = 12/35
: Please help.
1.Solve these using the multiplication principle.
9x = 90
-x = 42
-x/4 = 11
-3/5x = 12/35

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Question 132493: Hello can you please help me? I'm in 6th grade. Thank you
Multiplication -13 X 3
8 X -3
Division -18 divided by 3
8 divided by -3

Solve x=-7 + -23
n + -7= -11
: Hello can you please help me? I'm in 6th grade. Thank you
Multiplication -13 X 3
8 X -3
Division -18 divided by 3
8 divided by -3

Solve x=-7 + -23
n + -7= -11

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Question 132478:

2( x+3) = 10 4x - 2x + 3 = 2 x + 2 x - x
:

2( x+3) = 10 4x - 2x + 3 = 2 x + 2 x - x

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Question 132257: how do I solve this question: (3.99-X)/3.5=1.35: how do I solve this question: (3.99-X)/3.5=1.35
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Question 132013: Will you please help me with this??
The amount of candy shared by the class varies inversely with the number of students in the class. If there are 120 pieces of candy, how much would each student receive in a class of 30?
: Will you please help me with this??
The amount of candy shared by the class varies inversely with the number of students in the class. If there are 120 pieces of candy, how much would each student receive in a class of 30?

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Question 131849: How do I work this Problem out 2(3h-2)-2h=2(h-3)h=?
Thanks
: How do I work this Problem out 2(3h-2)-2h=2(h-3)h=?
Thanks

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Question 131543: Find a number such that 1 less than the number divided by the reciprocal of the number is equal to 1. (Leave the answeres in exact form, that is with the square root.): Find a number such that 1 less than the number divided by the reciprocal of the number is equal to 1. (Leave the answeres in exact form, that is with the square root.)
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Question 131058: 15=6h
: 15=6h

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