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

Tutors Answer Your Questions about Inverses (FREE)

Question 1094365: 1/x+1/x+1=9/20

Click here to see answer by josgarithmetic(39616)

Question 1094365: 1/x+1/x+1=9/20

Click here to see answer by ikleyn(52775)

Question 1095544: Sylvia took three turns in a video game. She scored �120 points during her first turn, 320 points during her second turn, and �80 points during her third turn. What was her average score for the three turns?

Click here to see answer by josgarithmetic(39616)

Question 1096629: How do you cross multiply when there is a number that is squared?
What is/are the values of t if g(t) =-4
If m varies inversely as n and m=8 when n=3 find m when n=8
Click here to see answer by josgarithmetic(39616)

Question 1097182: what is the inverse of function y= (5/(x+1))-2
Click here to see answer by Fombitz(32388)

Question 1097182: what is the inverse of function y= (5/(x+1))-2
Click here to see answer by josh_jordan(263)

Question 1097879: Square of -2/3
Click here to see answer by Alan3354(69443)

Question 1099086: What is 5 divided by 3/4 ?

Click here to see answer by josgarithmetic(39616)

Question 1099612: frank, sam, and louis went to lunch. sam's meal cost $.45 less than frank's. louis's meal cost twice as much as sam's. if the bill came $9.25, how much does each person owe?
Click here to see answer by josgarithmetic(39616)

Question 1099862: Out of 25 students, 14 had the chicken pox vaccine, 17 had the measles vaccine, and 7 had both vaccines, How many students had neither vaccines?
Click here to see answer by ikleyn(52775)

Question 1099989: The following function is one-to-one. Find the inverse of the function and graph the function and its inverse on the same set of axes. f(x)=x^3-5
f^-1(x)= ????
there will be graph that has 2 separate lines.

Click here to see answer by ankor@dixie-net.com(22740)

Question 1100202: simplify it and plz show the process
(1-3x^2)^-1/2
Click here to see answer by ankor@dixie-net.com(22740)

Question 1100350: (a+b+c)(b+c-a)(c+a-b)(a+b-c)=?
Click here to see answer by ikleyn(52775)

Question 1101074: If parcel A and B together weigh 24 kgs, but parcel B and C together weighs only 21 kgs. When parcel A and C are paired, the combined weight is 27kgs. If the weight of parcel A is represented by a, the weight of parcel B is represented by b and the weight of parcel C is represented by c a. Derive a system of three equations in a, b and c. b. Using the inverse method derive the combined weight of parcel A, B and C.
Click here to see answer by ankor@dixie-net.com(22740)

Question 1102520: The sum of non zero number an twice it's reciprocal is 33/4 find the number
Click here to see answer by josgarithmetic(39616)

Question 1102520: The sum of non zero number an twice it's reciprocal is 33/4 find the number
Click here to see answer by Theo(13342)

Question 1102520: The sum of non zero number an twice it's reciprocal is 33/4 find the number
Click here to see answer by greenestamps(13198)

Question 1102520: The sum of non zero number an twice it's reciprocal is 33/4 find the number
Click here to see answer by ikleyn(52775)

Question 1103685: What is the inverse operation of multiplying by 5?
Click here to see answer by ikleyn(52775)

Question 1103813: One afternoon, Carli went to the mall and spent $4 on a frozen yogurt cone. She spent 1/4 of her remaining money on nail polish. Then she let her friend borrow 1/3 of the money she had left. If Carli had $8 at the end of the afternoon, how much money did Carli have when she entered the mall?
Click here to see answer by josmiceli(19441)

Question 1104046: Mrs. Flanagan manages a hotel. One day, she received a certain number of
cancellations. Then she received reservations that were 13 more than 4 times the
number of cancellations. There were 79 hotel reservations in all.
How many cancellations did Mrs. Flanagan receive?
Click here to see answer by Theo(13342)

Question 1104382: if m - 1/m = 5; find:
(i) m^2 + 1/m^2
(ii) m^4 + 1/m^4
(iii) m^2 - 1/m^2
I solved the first two but I am unable to solve no. (iii).
Click here to see answer by Alan3354(69443)

Question 1104382: if m - 1/m = 5; find:
(i) m^2 + 1/m^2
(ii) m^4 + 1/m^4
(iii) m^2 - 1/m^2
I solved the first two but I am unable to solve no. (iii).
Click here to see answer by ikleyn(52775)

Question 1104441: It cost them $155 to print the raffle tickets and they wiuld like to make at least $2500 profit. How mucg money do they need to raise to cover the cost of the printing and meet their goals?
what
Click here to see answer by amalm06(224)

Question 1105582: A recipe calls for 1/8 teaspoon of vanilla extract.If the recipe is doubled, how much vanilla extract is needed?
Click here to see answer by ikleyn(52775)

Question 1106037: The average age of consisting doctors and lawyers is 40 . If the doctors average age is 35 and the lawyers average age is 50 , find the ratio of the number of doctors to the number of lawyers

Click here to see answer by josmiceli(19441)

Question 1106103: Z varies directly with x and inversely with the cube of y when z = 8 and y = 2 , z =3

Click here to see answer by Alan3354(69443)

Question 1107059: w varies directly as x and y inversely as v square and w=1200 when x=4, y=9 and v=6 find w when x=3 , y=12, and v=9
Click here to see answer by abdulaleem(11)

Question 1109482: The time it takes for a boy to ride his bike from his home to the ballfield varies inversely as his speed. Express that as an equation for inverse variation
Click here to see answer by Alan3354(69443)

Question 1110100: The one-to-one function f is defined below.
=f(x)=x/5x-4
Find f^-1, where f^-1 is the inverse of f
.
Also state the domain and range of f^-1 in interval notation.

Click here to see answer by greenestamps(13198)

Question 1113007: The number of candies consumed varies inversely with the number of children present. When 12 children are present, 140 pieces of candy are consumed. Therefore, when 8 children are present, _____ pieces of candy are consumed
Click here to see answer by stanbon(75887)

Question 1113261: A(n)=1 + 3/2 + 5/4 + 7/8 +...... +(2n+1)/2^n / lim A(n) (n->+inf)
Click here to see answer by solver91311(24713)

Question 1113642: The weight of a can of soup is jointly proportional to its height and to the square of its diameter.
A can 8 inches high with a diameter of 4 inches weighs 51.2 ounces. What is the weight of a can that is 4 inches high with a diameter of 3 inches?
Click here to see answer by amalm06(224)

Question 1113643: Use g(x) = 9x^5 to answer the following questions.
a. If x doubles in value, the value of g(x) is multiplied by a factor of ____.
b. If x is divided by two, the value of g(x) is multiplied by a factor of ____.
c. If x is tripled, the value of g(x) is multiplied by a factor of _____.
Click here to see answer by solver91311(24713)

Question 1115004: what is the additive inverse (opposite) of -5
Click here to see answer by Boreal(15235)

Question 1115004: what is the additive inverse (opposite) of -5
Click here to see answer by Shin123(626)

Question 1115676: What is 1/12 divided by 5 and 5 divided by 1/12
Click here to see answer by josgarithmetic(39616)

Question 1117269: Tap A takes 6 minutes to fill a tank and Tap B takes 9 minutes to fill the same tank. Pipe C can empty the tank in 15 minutes. How long will it take to fill up the tank if the pipe is in use when both taps are turned on?
Click here to see answer by math_helper(2461)

Question 1117273: A contractor agrees to lay a road 3000m long in 30 days. 50 men are employed and they work for 8 hours per day. After 20 working days, he finds that only 1200m of the road is completed. How many more men does he need to employ in order to finish the project on time if each man now works 10 hours a day?
Click here to see answer by josgarithmetic(39616)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295