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

Tutors Answer Your Questions about Inverses (FREE)

Question 145734: Solve -2z - 43 = -17 using inverse operations.
Click here to see answer by oscargut(891)

Question 146837: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
Click here to see answer by stanbon(57219)

Question 147880: Please help me with this
What is the equation for the inverse of the function f (x) = 4x - 3?
Click here to see answer by Fombitz(13828)

Question 147878: Find an equation for the inverse of the relation y = 6x + 3
Click here to see answer by Fombitz(13828)

Question 148016: Reciprocal for (-1/5)(20/5)(10)
Click here to see answer by jim_thompson5910(28476)

Question 148015: Reciprocal for (-1/5)(20/5))10)
Click here to see answer by jim_thompson5910(28476)

Question 148468: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
Click here to see answer by mangopeeler07(462)

Question 149154: Find the multiplicative inverse of 2.25.
Click here to see answer by stanbon(57219)

Question 149567: Please help me find the inverse matrix of:
3 1 2
3 2 -1
1 1 1
Thanks, Lindsey
Click here to see answer by Alan3354(30958)

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

Click here to see answer by stanbon(57219)

Question 150440: 1 1/3+2+3/4=
1/4divided by3/2=
ratio of 2 to 5 = what percent
12:30 as a percentage
Click here to see answer by stanbon(57219)

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
Click here to see answer by Earlsdon(6287)

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
Click here to see answer by stanbon(57219)

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?
Click here to see answer by vleith(2825)

Question 151290: If two numbers are opposite of each other, are their reciprocals also opposite of each other?
Click here to see answer by vleith(2825)

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?
Click here to see answer by solver91311(16868)

Question 153401: if it takes you 6 hours to run four loads with omly one washer, how long would it yake to run the same at the laudromat using 3 washers?
Click here to see answer by ankor@dixie-net.com(15623)

Question 153424: Solve for A: 1/A + 1/B + 1/C = D
I tried getting A by itself by using common denominators...but no luck
(not sure what category this fits in...sorry about that)
Thanks in advance
Click here to see answer by scott8148(6628)

Question 154147: Find the inverse of the one to one function.
F(x)=4/5x-1
Thank you.
Click here to see answer by stanbon(57219)

Question 154275: The reciprocal of 6 plus the reciprocal of 8 is the reciprocal of what number?
Click here to see answer by stanbon(57219)

Question 154634: could you please help me solve this problem and detail it.
solve for x. present answer in decimal form.
-2.2+1.3=-3.4x-2.3
Click here to see answer by checkley77(12569)

Question 155591: Inverse of -3 under multiplication

Click here to see answer by stanbon(57219)

Question 155841: LCM,14,22,176
LCM,26,14,112
examples ofGCF,ALSO

Click here to see answer by Edwin McCravy(8879)

Question 156171: h = 10 (h = ?)
-
15
Click here to see answer by edjones(7569)

Question 108652: The mileage from Dallas to Miami is 1332 miles. To the nearest hour, how many hours would it take to drive from Dalla to Miami at an average speed of 55mi/h?
Click here to see answer by Alan3354(30958)

Question 157474: will you help me to understand how to solve simple equations such as this one: 2x+3=9.x=
Click here to see answer by Fombitz(13828)

Question 157492: how do I find the inverse of x->3x??? and x->3x-5
Is there a formula I can use? thankyou
Click here to see answer by jim_thompson5910(28476)

Question 158023: show that the square root of 2/3(two thirds)is irrational
Click here to see answer by integral13(8)

Question 158022: square root of 1/2 show that it is irrational
Click here to see answer by integral13(8)

Question 158310: A farmer buys 100 animals for $100.00. The animals include at least one cow, one pig, and one chicken, but no other kind. If a cow costs $10.00, a pig costs $3.00, and a chicken costs $0.50, how many of each did he buy?
Click here to see answer by ptaylor(2048)

Question 158523: What are the pattern in the sum of multiple?
can you give examples in summing multiple?

Click here to see answer by MCA(1)

Question 158752: I am a parent who has been out of school for more than 20 years. I am trying to help my daugher understand a problem that is on her homework. The ditto is about Inverse Operations... and says to show two different ways to solve the equation. The equation is as follows:
5x - 1 = 2x + 8
Please Help!!!!!!!!!!!!
Click here to see answer by scott8148(6628)

Question 158920: What is the multiplicative inverse of negative nine and how do I figure that out?
Click here to see answer by vleith(2825)

Question 159540: Algebra question.
18 + ______ 3 = 31
Click here to see answer by midwood_trail(310)

Question 159539: Algebra question.
18 + ______ 3 = 31
Click here to see answer by midwood_trail(310)

Question 160278: If two numbers are opposite of each other, are their reciprocals also opposite of each other
Click here to see answer by stanbon(57219)

Question 160915: WHAT IS THE PROPERTY OF MULTIPLICATION STATES THAT THE PRODUCT OF 1 AND ANY NUMBER IS THAT NUMBER?
Click here to see answer by stanbon(57219)

Question 161154: Please help me set this problem up so I can solve it. How many grams of pure gold must be added to 65% alloy of gold to produce 70 grams of 48% alloy?
Click here to see answer by KnightOwlTutor(293)

Question 161469: what is the reciprocal of 3/x
Click here to see answer by KnightOwlTutor(293)

Question 161927: I am stuck on an equation that I need to solve for inverse operations
n over 2= -15 not sure how to do this one.
thanks,
Click here to see answer by checkley77(12569)

Question 162700: a mass weighs 125 grams and it is in a cylinder that measures 2.48" diameter and
a length of 1.00" how do you calculate the pounds per square foot.
Click here to see answer by gonzo(654)

Question 163221: copy and complete each number sentence.
a. _ x 14= A where A is greater than 100.
b. _ x 24= B where B is less than 100.
Click here to see answer by kammikam(2)

Question 163289: Find the inverse of the following functions:
f(x)=3x-1
I also have to work out
f(x)= x+3/2x
The problem is, I can't find the formula to work these out anywhere.
Please help!
Click here to see answer by Fombitz(13828)

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