# 1)Find the sixth term of the geometric sequence for which a1=5 and r=3 A)1215 B)3645 C)9375 D)23 I chose A 2)Write an equation for the nth term of the geometric sequence -12,4,-4/3... A)aN=-12(1/3)n-1 B)aN=12(-1/3)n-1 C)aN=-12(-1/3)-n+1 D)aN=-12(-1/3)n-1 I chose C 3)Find

92,916 questions, page 681
1. ## physics

Two charges are placed on the x axis. One of the charges (q1 = +9.4 µC) is at x1 = +3.1 cm and the other (q2 = -22 µC) is at x2 = +9.3 cm. Find the net electric field (magnitude and direction) at x = +6.5 cm. (Use the sign of your answer to indicate the

asked by michelle on January 8, 2011
2. ## Chemistry

I am really stuck, I have tried to look these up everywhere and I keep getting different answers. I have to find the balanced equations for: Magnesium + Citric acid Zinc + citric acid Copper + Citric acid Manganese + Citric acid If I can have some help it

asked by Franky on October 8, 2011
3. ## ap calc

Consider { a sin x + b, if x ≤ 2π { x^2 - πx + 2, if x > 2π A.) Find the values of a and b such that g(x) is a differentiable function. B.) Write the equation of the tangent line to g(x) at x = 2π. C.) Use the tangent line equation from Part B to

asked by Billy on December 22, 2017
4. ## Social Studies

A traditional fisherman of the Pacific might find the Internet useful by: A. Using the Internet to look at currents and weather reports. B. Using the Internet to research what fish were bought for the most money. C. Using the Internet allows the fisherman

asked by Anonymous on May 17, 2014
5. ## Math

Vincent went to a pizza restaurant. A vegetable pizza costs \$8 and a chicken pizza costs \$12. Find an inequality to determine the number of pizzas he can buy along with one vegetable pizza if he has \$140 to spend.

asked by Calvin J. on January 11, 2019
6. ## Geometry

A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations.

asked by David on January 17, 2014
7. ## Math

Jaleah has a 2-pound package of flour. She uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express you answer as a decimal.

asked by Armida on May 19, 2019

Ryan left musuem and drove south. Gab left 3 hrs later driving 42 km/h to catch up to him. After 2 hrs gab finally caught up. find Ryan's averae speed?

asked by nancy on October 15, 2010
9. ## math

(a) Make a table of values rounded to two decimal places for the function f(x) = ex for x = 4, 4.5, 5, 5.5, and 6. Then use the table to answer parts (b) and (c). (b) Find the average rate of change of f(x) between x = 4 and x = 6. (Round your answer to

asked by katy on February 13, 2017
10. ## PRE ALGEBRA

solution to electrical poles that carry electrical wire seem to get smaller the further away you are. Find the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between poles.

asked by BEV on January 23, 2014
11. ## math

nine solid metal spheres, each of radius 2 cm, are dropped into a cylinder partly filled with water. If the spheres are totally immersed, find the rise in the water if the radius of the cylinder is 3cm

asked by boo on October 2, 2011
12. ## Math

Manuela is having mugs made for a fundraiser. The cup company will make them for \$4.50 each with no set-up charges. Write and solve an equation to find how many mugs Manuela can have made for the two company prices to be the same. *** Please help :)******

asked by Anonymous on January 10, 2014
13. ## Math

20.Proma earned \$82 last week. She earned \$6 each hour and received a bonus of \$10 for exceptional work. Which equation can be used to find h the number of hours Proma worked last week A.6h+10=82 B.6h-10=82 C.10h+6=82 D.10h-6=82 C

asked by Jerald on May 28, 2013
14. ## Physics

A box of mass m = 0.20 kg slides across frictionless tabletop from rest, with 2.5 m/s2 acceleration. The length of the tabletop is L = 2.00 m and its height is H = 1.50 m. The box then slides off the edge and hits the floor at some distance away, Find the

asked by master on June 9, 2012
15. ## math

a vertical flagpole casts a shadow of 12ft long at the same time that a nearby vertical past 8ft casts a shadow 3ft long. Find the height of the pole

asked by ann on November 22, 2014
16. ## Algebra

An airline has 82% of its flights depart on schedule. It has 65% of its flight depart and arrive on schedule. Find the probability that a flight that departs on schedule also arrives on schedule. Round the answer to two decimal places. A. 0.80 B. 0.17 C.

asked by Izzy on April 29, 2019
17. ## math

a wire of 100cm is bent to from a squre. if a rectangle is formed with same wire having length 5cm more and breadth 5cm less than each side of the square find the difference between the area of the squre and rectangle

asked by vaidehi on March 29, 2013
18. ## math

victoria has a 2-pound package of flour. she uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express answer in decimal.

asked by robin on February 27, 2019
19. ## physics

A series circuit consist of 6 ohms resistor,ammeter and battery. The current in the circuit is 0.5A but drops to 0.3A when another resistor of 8ohms is added in series. Find the battery e.m.f and its internal resistance?

asked by davies on November 19, 2015
20. ## Home work help

I need help for this math question: Can you provide the steps on how you got the answer to this question? A bank requires a monthly payment of \$33.45 on a \$2500 loan. At the same rate, find the monthly payment on a \$10,000 loan.

asked by Lisa on November 10, 2008
21. ## Math

Find the cell phone plan that has the best dollar per minute rate. A) 240 minutes for \$50 a month B) 140 minutes for \$70 a month C) 200 minutes for \$45 a month D) 800 minutes for \$250 a month

asked by Mehneedhalp on December 11, 2018
22. ## Physics

A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.

asked by Chloe on July 17, 2011
23. ## Math probability - HELP

A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

asked by Bryan on January 23, 2014
24. ## CHEMISTRY

A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

asked by dukesouvik on May 16, 2013
25. ## Math 6b

The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a consonant the first time and a vowel the second time if the spinner is spun twice My spinner has 3 parts, N E and U A:2/3 B:2/9 C:3/4 D:5/9

26. ## Calculus 2

i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

asked by Kyle on March 16, 2010
27. ## Physics

Please someone help me I'm desperate!!!! Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 420.0 N of tension. String B has a diameter of 1.3 mm and is under a tension of 840.0N . Find the ratio of the wave

asked by Frank on November 20, 2009
28. ## algebra

A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|queen) Thank you

asked by Mary Ann on May 26, 2014
29. ## Math

A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

asked by Bryan on January 22, 2014
30. ## algebra/Did I do this right

A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) I came up with 12/52 Thank you

asked by Mary Ann on May 26, 2014
31. ## algebra/Can you see if I am right

A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) 4/52 Thank you

asked by Mary Ann on May 27, 2014
32. ## algebra

Jose traveled to San Diego at an average rate of 50 mph. Carlos made the same trip in one hour less time at an average rate of 60 mph. Find the distance of the trip.

asked by Brianne on September 7, 2011
33. ## English

Thank you for your help but I have one more question about those sentences. On the plagiarism website, it says it’s plagiarism if it has the same sentence structure. In some residents must relocate for a position and the pediatrician may have to move to

asked by Wes on February 27, 2018
34. ## Linear Equations

Can you check these thanks. Linear Equations Directions: Write each equation in standard form. 1. y=7x-5 Answer: 7x-y=5 2. y=3/8+5 (3/8 is a fraction) Answer: 3x-8y=40 3. x= -2/7y+3/4 Answer: x+14y=12 4. 3y-5=0 Answer: x+3y=0 Find the x-intercept and

asked by Rachel on October 2, 2010
35. ## Maths

in the following rings find all units, Zero divisors and idompotent elements and determine whether the ring is a field. a)Z2 b)Z5 c)Z10 NB z is integers( positive or negatives including zero z is integers( positive or negatives including zero

asked by JESS on November 20, 2012
36. ## Calculus 2

i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

asked by Kyle on March 16, 2010
37. ## algebra

find the theoretical probability of each outcome. 1. randomly choosing a day of the week and it is a weekend 4. randomly choosing the letter N from the letters in NUMBER 11. the probability of a thunderstorm is 80%. what are the odds that there will be a

asked by s on April 25, 2013
38. ## Chemistry

Iron combines with oxygen and water from the air to form rust. If an iron nail were allowed to rust completely, one should find that the rust weighs: I know the answer is the rust should way more than the nail it came from but can someone explain why

asked by Jessica on January 17, 2014
39. ## physics(HELP..)

A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

asked by dukesouvik on May 16, 2013
40. ## physics

A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

asked by dukesouvik on May 16, 2013

Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide. f) 1/87 = x/16.5 g) 1/87 = 16.5/x h) 1/x= 87/16.5 j)

asked by Suzanne on April 23, 2011
42. ## physics

A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

asked by dukesouvik on May 16, 2013
43. ## calculus

The height (in feet) of a skydiver at time t (in seconds) after opening his parachute is given by h(t) = 4000 – 19t. Find the skydiver's velocity after the parachute opens. The answer should be in feet per seconds. I would appreciate if somebody

asked by Mark on September 21, 2010
44. ## Physics

The moment of inertia of an asteroid rotating about its own axis is 5.00 ! 10 4 kg"m2. Its angular velocity is 40.0 rad/s. If a force acts on the asteroid for 0.100 s, increasing the angular velocity to 48.0 rad/s, find its magnitude

asked by HELP on December 9, 2011
45. ## MATHS ASAP!!!!!

At the x axis, y is zero. So if the x intercept is (1,0) then (y-a)^2=x + b (0-a)^2=1 + b Now the vertex. (y-a)^2=x +b (2-a)^2= 0 + b or these two equations are.. a^2= 1+b or b= a^2 - 1 putting this into the second equation. 4-4a + a^2=a^2-1 solve for a,

asked by bobpursley on November 2, 2006
46. ## COLLEGE PHYSICS

Find the x and y coordinates of the center of gravity of a 4ft by 8ft uniform sheet of plywood with the upper right quadrant removed? with out mass of the plywood how do go about calculating the center gravity for x/y coordinates?

asked by natali on November 16, 2007
47. ## Physics

A man using a 70 kg garden roller on a level surface exerts a force 20 kgf at 45 degrees to the ground . Find the vertical force of the roller on the ground if he ; a) pulls the roller. b) pushes the roller.

asked by Joseph on January 10, 2011

find the complete zeros of the polynomial function. Write f in factored form. f(x)=3x^4-10x^3-12x^2+122x-39 **Use the complex zeros to write f in factored form.** f(x)= Please show work

asked by NayNay on December 30, 2012
49. ## Geometry

A right triangle has exterior angles at each of its acute angles with measures in the ratio 13:14. Find the measure of the smallest interior angle of the triangle. 40 (degrees) 50 (degrees) 130 (degrees) 140 (degrees) Please help? Thanks

asked by SkatingDJ on October 21, 2015
50. ## Algebra

The volume of a sphere is given by: V=4/3 pie r cubed. Use the formula, and show your workings, to find out what happens to the volume of a sphere if r is halved and r is trippled? Please help as this has just completly lost me, i end up with V = 4/3 Pie r

asked by StephanieNZ on March 21, 2010
51. ## math

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 80 people. (a) How many would you expect to be between 170 and 175 cm tall? (b) How many would you expect to

asked by Andrew on March 10, 2013
52. ## chemistry - Molar enthalpy

When 10.0 g of KOH is added to 100.0 g water, the solution's temperature increases from (25.18 C) to (47.53 C). What is the molar enthalpy of solution for KOH? i tryed q=(m)x(c)x(delta T) didn't really work. i got 22.35 J do i use that to find the molar

asked by Rose Bud on February 29, 2012
53. ## Math

The rectangular coordinates of a point are given. Find two sets of polar coordinates for the point for 0 is less than or equal to Q is less than 2pi. (-3,-3) My answers were (-3sqrt2, pi/4) and (pi/4, -3sqrt2). My teacher said that my answers have to be in

54. ## Math

How could you use the product 108 and 4 to find the product of 324 and 4? How would I know that you need to multiply times 3. How are the children given directions to work on this problem. I know understand 108 goes into 324 3 times. But are they asked to

asked by Margarita on February 2, 2009
55. ## electricity

A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

asked by Antony need some help here on November 23, 2013
56. ## maths

A man drives from ibadan to Oyo, a distance of 48km in 45 minutes. If he drives at 72km/h where the surface is good and 48km/h where it is bad, find the number of kilometres of good surface.

asked by somay on April 26, 2016
57. ## Math

The rectangular coordinates of a point are given. Find two sets of polar coordinates for the point for 0 is less than or equal to Q is less than 2pi. (-3,-3) My answers were (-3sqrt2, pi/4) and (pi/4, -3sqrt2). My teacher said that my answers have to be in

58. ## Math

There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

asked by Raf on October 27, 2011
59. ## Calculus

Find the total mass of the triangular region with coordinates (-1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5+x grams/c^m2. I know that to get the total mass i have to do density* lenght and ingegrate, but I

asked by Caroline on October 26, 2011
60. ## math

The locus of a point whose distance from point (0,5) is always 3/4 of its distance from the line Y=8 is an elipse. Find the equation,centre, length of the major axis, length of the minor axis and the foci of the ellipse.

asked by saud on December 18, 2016
61. ## bridge

Vincent went to a pizza restaurant. A vegetable pizza costs \$8 and a chicken pizza costs \$12. Find an inequality to determine the number of pizzas he can buy along with one vegetable pizza if he has \$140 to spend.

asked by Summer on September 6, 2016
62. ## electromagnets

A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

asked by Jason on November 22, 2013
63. ## Math

Ms. Snyder wants to buy a television at an electronics store. All televisions at the store are 3/4 of the original price, p. She has a \$40 discount coupon she will use during the sale. What equation should Ms. Snyder use to find the final price, f, of a

asked by Jessi on February 25, 2009
64. ## Physics

A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.

asked by Breezerlea on February 22, 2011
65. ## Physics

A 0.25 kg ball moving at 19.0 m/s is hit by a bat. The ball leaves the bat at a speed of 38 m/s in the opposite direction. If the bat is in contact with the ball for 0.01 s, find the magnitude of the average force exerted on the ball by the bat.

asked by kt on July 10, 2018
66. ## Plane Trigonometry

A compact disk is 12 cm in diameter & rotates at 100 rpm when being played. The hole in the center is 1.5 cm in diameter. Find the speed in cm/min of a point on the disk & the speed of a point on the inner edge.

asked by Willoby on January 4, 2011
67. ## Physics electric potential energy difference

A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

asked by Carl on November 22, 2013
68. ## Physic

Child 1 is 2.0 m from the axis of rotation, and child 2 is 1.5 m from the axis. The merry-go-round completes one revolution every 4.8 s. Find the angular speed of each child. (Answer: For both child is 0.278rev/s) Please show all work on how to get the

asked by Anonymous on April 30, 2014
69. ## math

The students in Mr. Stevens class are having a turtle race. The race will last 2 minutes. Find the distance from the start each turtle will be at the of the race.Rex 2/3 speed (in inches per second).Whatwas the distance at the end of the race.

asked by ttuuffyy on April 10, 2013
70. ## Statistics

Find the interquartile range given these data points: 57,66,69,71,72,73,74,77,78,7879,79,81,81,82,83,83,88,89,94. When I used the TI-84 calculator, I got ... Q1=72.5 Q3=82.5 IQR=Q3-Q1=82.5-72.5=10 But.. When I created a stem and leaf plot I found that Q2=

asked by Sanaya on January 7, 2016
71. ## Math

There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

asked by Raf on October 27, 2011
72. ## Statistics

Find the interquartile range given these data points: 57,66,69,71,72,73,74,77,78,7879,79,81,81,82,83,83,88,89,94. When I used the TI-84 calculator, I got ... Q1=72.5 Q3=82.5 IQR=Q3-Q1=82.5-72.5=10 But.... When I created a stem and leaf plot I found that

asked by Sanaya on January 7, 2016
73. ## physics

Two blocks of masses is m and 2m are held in the equilibrium on a frictionless incline. In terms of m and x, find the magnitude of the tension t1 in the upper cord and the magnitude of the tension t2 in the lower cord connecting two blocks.

asked by Maria on August 11, 2015
74. ## Math

There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

asked by Raf on October 27, 2011
75. ## Math

are the events of drawing a knight from the bag of white pieces and drawing a pawn from the bag of black pieces dependent or independent events? find the probability of this compound event.

asked by Dema on March 1, 2014
76. ## English

1. I expect to go abroad. 2. I hope to see you again. 3. I wish to go to egypt. 4. Don't you care to buy a pet? 5. He decided to reenter the burning building. 6. He chose to be a fire fighter. 7. I mean to do a business on the Internet.  8. Emily promised

asked by John on November 14, 2008
77. ## Physics

A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 7.00 m/s in a distance of 11.2 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of

asked by Rose Foley on October 5, 2014
78. ## calc. 1

You are designing a poster with area 625cm^2 to contain a printing area having margins of 1cm at the top and bottom and 5cm on the sides. Find the largest possible printing area. Round your answer to the nearest four decimal place. I am aware that i should

asked by mike on March 24, 2016
79. ## physics

A cylinder with a movable piston holds 2.75 mol of argon gas at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas, and

asked by Matthias Schwartzkopf on October 31, 2011
80. ## Finance

Cost Allocation It started with a letter Statendam, November 5, 2001 To: Henk Jacobs, director finance department From: Bob Jansen, manager refuse collection department Dear Henk, Someone told me that you had to see the teachers of one or your children

asked by Math dummy on March 16, 2012
81. ## Math

A box of Brand A laundry detergent washes 20 loads of laundry and costs \$6. A box of Brand B laundry detergent washes 15 loads of laundry and costs \$5. In the ratio tables that follow, fill in equivalent rates of loads washed per dollar. Include some

asked by Ginny on March 31, 2019
82. ## Math

Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3.

asked by Hale on March 19, 2013
83. ## bearing

Three towns p, q and r are such that the distance between p and q is 50km and the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the (a)distance between q and r (b)bearing of r from q

asked by bearing question corrected on January 7, 2010
84. ## Math

Given that Line segment CP is an angle bisector of

asked by Anna on August 23, 2017
85. ## Elementary Mathematics

The probabilities that May, Lily and Mary will pass a test are 2/5, 7/10 and 9/10 respectively. Find the probability that (i) At least one of them will pass the test, (ii) 2 of the girls will pass the test

asked by Seow Kian on September 12, 2015
86. ## bearing

Three towns p, q and r are such that the distance between p and q is 50km and the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the (a)distance between q and r (b)bearing of r from q

asked by Alero on January 7, 2010
87. ## science

Consider the diprotic acid H2A with K1 =1.00 X 10-4 and K2 = 1.00 X 10-8 . Find the pH and concentrations of H2A, HA- , and A2- in: (a) 0.100 M H2A; (b) 0.100 M NaHA; (c) 0.100 M Na2A.

asked by mmm on September 20, 2015
88. ## physics

Find the electric potential energy for the following array of charges: charge q1 = +3.0 µC is located at (x, y) = (0.0, 0.0) m; charge q2 = +3.0 µC is located at (4.0, 3.0) m; and charge q3 = −1.0 µC is located at (0.0, 3.0) m.

asked by anybody? on January 31, 2012
89. ## calculus

find the distanced(p_1&P_2) between points P_1 and P_2. P_1=(4,-5) and P_2=(3,4) plz show work

asked by Heather on December 9, 2012
90. ## algebra

The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:

asked by rr on May 18, 2012
91. ## maths

A and B can do a piece of work in 10 days, B and C in 15 days and A and C in 12 days. A,B and C work together to finish the work. If they are paid 15000, find the share of each?

asked by kumar on March 10, 2018
92. ## math

A rectangle has a length of 4x and a width of 4x-2. Its perimeter is 12 inches. Find the length and width. Write the equations. What is the length and width?

asked by lea on March 14, 2012
93. ## Algebra

The width of a rectangle is 2ft less than the length. The area is 8ft^2.Find the length and the width. The width is__ ft. The length is __ ft.

asked by Nikayla on September 4, 2011
94. ## Algebra

the length of a rectangle is twice the width. The area is 200 yd^2 Find the length and the width. The length is _____ yd The width is ______ yd Could I get help please!!!!

asked by pj on February 7, 2009
95. ## math

A pile of 108 identical books has a mass of 30 kg. Find (a)the mass of 150 books and (b)the number of books that has a mass of 20 kg.

asked by Sally on August 2, 2011
96. ## Geometry-8th gr

The perimeter of triangle ABC is 120. LIne segment BD bisects

asked by Mona on February 1, 2013
97. ## Pre-calculus

Find the interquartile range and the semi-interquartile range of the following data: 42 51 53 53 59 61 75 100 mean=61.75=62 median=56 mode=53 interquartile range=87.5-52=35.5?

asked by Mary on January 20, 2009
98. ## ramjas

the sum of the digit of a two digit number is 13 and the diffrence btween the number and that form by reversing the digit is 27, find the number...

asked by ashu on August 12, 2014
99. ## math

a basketball team needs 5 players. the team can choose from a group of 7 players. explain how to find the combinations of players that can be on the team.

asked by ryan on November 18, 2014
100. ## Math

This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 2, when divided by 5 gives a remainder of 3, and when divided by 7 gives a remainder of 4.

asked by Ashley on April 2, 2014