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

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 Algebra: Inverse operations for addition and multiplication, reciprocals Solvers Lessons Answers archive Quiz In Depth

 Question 550040: in the real numbers what is the solution of the equation 8^2x+1 = 4^1-x? could i please have some work with this as well bcuz my answer key has c but i don't know how it got that so an explanation would be much appreciated. Thanks for ur kind generosity and help! a.-1/3 b.-1/4 c.-1/8 d.0 e.1/7 Click here to see answer by lwsshak3(6460)

 Question 550692: If (6, 8) is an ordered pair of the function F(x), which of the following is an ordered pair of the inverse of F(x)? Click here to see answer by stanbon(57219)

 Question 551688: if f(g(x)) = 6x^3, what are possibilities for f,g? a) f(x) = 6x, g(x) = x^2 b) f(x) = x^2, g(x) = 6x c) f(x) = 2x, g(x) = 3x^3 d) f(x) = 3x^3, g(x) = 2x ** Please help me understand and please explain... thanks Click here to see answer by Edwin McCravy(8879)

 Question 552079: what is 2x+5=4x-7 ? Click here to see answer by rfer(12644)

 Question 553900: decide whether the sequence is arithmetic, geometric, or neither. Explain your answer. 24. 6, 24, 96, 384... 25. 1,3,7,13... 26. 4, 13, 22, 31... 27. 3, -1, -5, -9... 28. -11, -7, -3, 1... 29. 1/2, 3/2, 9/2, 27/2... 30. 1/3, 2/3, 1, 4/3... 31. -3/4, 1/8, -1/16, 3/32... 32. -3/5, 4/25, 5/125, 6/625... find the common ratio of the geometric sequence 33. 1,4,16,64... 34. 3,6,12,24... 35. -3,6,-12, 24... 36. 5,40,320,2560... 37. 136,68,34,17... 38. -1/4,1/8, -1/16,1/32... write a rule for the nth term of the geometric sequence. then fina a6. 39. 1,-4,16,-64... 40. 5,10,20,40... 41. 2,14,98,686 42. 6,-30,150,-750... 43. 5,-5/3,5/9,-5/27... 44. 2,4/3,8/9,16/27 please show ur work,, thanks for ur help! Click here to see answer by KMST(1864)

 Question 554756: Find the inverse of f(x) = x/3 + 10 Click here to see answer by jim_thompson5910(28476)

 Question 554919: The larger of two numbers is 10 less than twice the smaller. If half the larger is increased by 4 times the smaller, the result is 50. Please help . Click here to see answer by ankor@dixie-net.com(15624)

 Question 555674: Okay, so I am having difficulties in my math class in 8th grade. The problem went like this multiplying a number by 1/3 and then dividing the result by 4/9 is the same doing which of the following? A) multiplying by 3/4 B) multiplying by 4/3 OR C) dividing by 2/5. If you could help me on this that would be soo fantastic! I have a test on it tomorrow, which I don't understand it so that's why I came to this site. Click here to see answer by scott8148(6628)

 Question 558997: Only in fifth grade and just learning how to do this. I know that z + 24 =32 is soloved like this: (z+24)-24=32-24 ; z=8 but how do I do 81/p=9? Click here to see answer by scott8148(6628)

 Question 559166: I need help with my pre algerbra. We are learning about powers with negative exponents. My problem is: b^8 * b^-6 * b^-9 Click here to see answer by stanbon(57219)

 Question 559593: what is 3w x 4 = 36 what does w equal Click here to see answer by angelgirl1024(2)

 Question 561469: What is the multiplicative inverse of negative one over nine? Click here to see answer by jim_thompson5910(28476)

 Question 562545: My son is doing Algebra foundations. This is the problem that he needs to solve and I think I am solving it correctly however, I need to make sure. The speed (s) that Brandon can ride his bike if he rides 3/5 of an hour and travels 4 miles is given by the equation 4 = 3/5 (s) What is Brandon's speed? Click here to see answer by stanbon(57219)
 Question 562545: My son is doing Algebra foundations. This is the problem that he needs to solve and I think I am solving it correctly however, I need to make sure. The speed (s) that Brandon can ride his bike if he rides 3/5 of an hour and travels 4 miles is given by the equation 4 = 3/5 (s) What is Brandon's speed? Click here to see answer by solver91311(16868)

 Question 563655: 1/4x=9 Click here to see answer by jim_thompson5910(28476)

 Question 565087: h + (-11) = -18 Click here to see answer by jim_thompson5910(28476)

 Question 565642: inverse operations Click here to see answer by stanbon(57219)

 Question 567595: 5-3(2b-3)=-4 -6x+14-14=-4-14 -6x=-18 -6x6x/6=-18/-6 =3 I am stuck on how to do inverse operation to check my work Click here to see answer by bucky(2189)

 Question 565597: x/3+5=15 Click here to see answer by jim_thompson5910(28476)

 Question 574751: please help me solve this problem A number is increased by 2 thirds of the number is 35. find the number Click here to see answer by bucky(2189)

 Question 577127: How do you find the quotient of two numbers when the numerator is 0 ? Click here to see answer by jim_thompson5910(28476)

 Question 579219: What's 1/3x+2=4? Click here to see answer by sharksteal(2)

 Question 579217: What's 2/7x=2? Click here to see answer by richard1234(5390)

 Question 582600: F(x)=8x Click here to see answer by nyc_function(2733)

 Question 586443: I am trying to refresh my mind. Please show me how to work this problem. 1/2+(2/3 divided 3/4)-(4/5 times 5/6)= Click here to see answer by stanbon(57219)
 Question 586443: I am trying to refresh my mind. Please show me how to work this problem. 1/2+(2/3 divided 3/4)-(4/5 times 5/6)= Click here to see answer by josmiceli(9649)

 Question 590497: make a = 132,658 = 47 Click here to see answer by Alan3354(30959)

 Question 592791: Please help and show work. Thanks in advance. a. Does the function f(x)=x^2 have an inverse? If so, what is it? If not, why not? b. the function f(x)= x+3/x-5 has an inverse. Please find it. Click here to see answer by lwsshak3(6460)

 Question 589966: Decide whether or not the functions are inverses of each other. 1] f(x)= 4x+16 and g(x)= 1/4x-4 2] f(x)= sqrt(x+8), domain [-8, infinity); g(x)=x^2+8, domain (-infinity, infinity) and last one: Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse. f(x) = 2x + 1 I need help understanding these three questions :( Inverses was my least favorite in Algebra! If you could please help, would be greatly appreciated! Click here to see answer by lwsshak3(6460)

 Question 596020: Please check my work: Evaluation Problem: -8x - 22 = -27 1/3 3[-8x - 22] = 3(-27) x 3(1/3) -24x - 66 = -81 -24x = -81 - +66 -24x = -15 x= 5/8 Click here to see answer by jim_thompson5910(28476)

 Question 597338: show the inverse operations steps 2x+(-3)=15 Click here to see answer by Alan3354(30959)

 Question 600992: How would you find the additive inverse of 9y Click here to see answer by jim_thompson5910(28476)

 Question 604433: 8\9dividedby4\5 Click here to see answer by lynnlo(4155)

 Question 607175: f(x)=1/3x-2 I need to find inverse functions of F and F^-1 and graph Click here to see answer by solver91311(16868)
 Question 607175: f(x)=1/3x-2 I need to find inverse functions of F and F^-1 and graph Click here to see answer by lwsshak3(6460)

 Question 607199: If y varies inversely with x and y=2/9 when x=1/3, what in the constant of variation? Click here to see answer by nerdybill(6948)

 Question 607713: what are the fact family for 4,9,36 iwould like to know how it is done. Click here to see answer by jim_thompson5910(28476)

 Question 607780: solve for h A=1/2(b1+b2)h Click here to see answer by jim_thompson5910(28476)

 Question 608414: If f(x) is a direct variation and if f inverse of x=(4/9)(f(x)), determine f((9/4)). Thank you for the help! Click here to see answer by lynnlo(4155)

 Question 609993: 1 how do you solve 3/7 of what number is 9? 2 how do you solve 2/3 of what number is 16 3 solve for z 6=z/5.9 4what is trhe nearest tenth for 449/0.42 Click here to see answer by rfer(12644)

 Question 610007: Mary was asked to use inverse operations to solve the equation 5x-3=12. Which set of instructions shows the inverse operation? A. Add 3, then divide by 5. B. Multiply by 3, then subtract 5. C. Subtract 3, then muliply by 5. D. Subtract 12, then divide by 5. Click here to see answer by richard1234(5390)

 Question 609987: f(x)=5+1/7x Click here to see answer by SwiftAlbatross(13)

 Question 612484: find the inverse, f^-2(x) of f(x)=1/2x-2 A.f^-2(x)=2x+4 B.f^-2(x)=2x-2 C.f^-2(x)=-2x+4 D.f^-2(x)=2x-4 Which is the answer? Click here to see answer by ewatrrr(10682)

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