Dell

Most popular questions and responses by Dell
  1. science

    Mary and Tom park their cars in an empty parking lot with n >_ 2 consecutive parking spaces (i.e, spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What is

    asked on February 6, 2014
  2. math

    A radio station's signal has a radius of 100 miles. If you drive at a constant speed of 40 miles an hour, nonstop, directly across the diameter of the signal, how long can you listen to the station before the signal fades?

    asked on June 5, 2013
  3. math

    A whole brick is balanced with 3/4 pound and 3/4 brick. what is the weight of the whole brick?

    asked on October 26, 2012
  4. physics

    To protect her new two-wheeler, Iroda Bike buys a length of chain. She finds that its linear density is 0.61 lb/ft. If she wants to keep its weight below 1.8 lb, what length of chain is she allowed?

    asked on May 28, 2012
  5. Finance

    Nancy Bellow promised her son she would pay him $600 a quarterly for four years.If Nancy can invest her money in a 6% ordinary annuity, how much would she need to invest today

    asked on July 25, 2011
  6. math

    Two cars leave the same point at noon. One car travels North and the other car travels East. Suppose the North bound car is travling 40mph and after two hours, the two cars are 100 miles apart. How fast is the other car going?

    asked on November 2, 2012
  7. NEED HELP...how do i draw a visual for this ques?

    A son and his father take a daily walk up a hill. It is 1.5 km to the top of the hill. As the father gets older he can only walk half the speed of his son. So they start together but the father trails his son. The father reaches the halfway point when the

    asked on December 6, 2011
  8. logic

    A son and his father take a daily walk up a hill. It is 1.5 km to the top of the hill. As the father gets older he can only walk half the speed of his son. So they start together but the father trails his son. The father reaches the halfway point when the

    asked on December 1, 2011
  9. math

    each day, Jason walks to his office at a constant rate. one third of the way he passes a bank and three-fourths of the way to work he passes a store. at the bank his watch reads 6:52 am and at the store it reads 7:02 am. at what time was jason halfway to

    asked on November 16, 2012
  10. Math

    A famous detective was called in to solve a baffling murder mystery. He determined there was only one cause of death along with the following facts: a.Mr. Harold, the murdered man, was killed by a blow on the head with a brass candlestick. b.Either his

    asked on November 14, 2011
  11. math

    Four good friends, who love cats, have each named their cat after one of the other friends. Of the clues that follow, only one is true; the others are false. Which friend owns which cat? a.Candy’s cat is named either Dody or Alice. b.Betsy’s cat is

    asked on November 11, 2011
  12. Physic

    The built-in composite bar BC of length L=2 m is composed of two materials with equal cross sectional area A = 100 mm2. The first material has elastic modulus E=1 GPa. The second material is twice as stiff, with a modulus of 2E or 2 GPa. The bar is

    asked on May 9, 2013
  13. Math

    A whole brick is balanced with 3/4 pound and 3/4 brick. What is the weight of the whole brick ? Use a visual solution process

    asked on October 29, 2012
  14. math

    Mary bought some peppers and apples at the farmer's market. 2/3 of the peppers and 3/4 of the apples were red. the number of red peppers and red apples were the same. if mary bought 27 peppers how many apples did dhe buy?

    asked on August 22, 2012
  15. NEED HELP drawing a visual for this question

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to

    asked on December 6, 2011
  16. Math...HELP i dont understand this problem!

    Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

    asked on December 5, 2011
  17. math

    Fresh Grapes contain 80 percent water by weight and 20 percent juice, whereas dried grapes contain 15 percent water by weight with the rest juice. How many punds of dried grapes are needed to yield the same amount of juice as 34 pounds of fresh grapes?

    asked on November 28, 2011
  18. venn

    how to draw a venn diagram for: A is a subset of B; C is a subset of B; A and C have no elements in common

    asked on November 14, 2011
  19. math

    For each of the following, draw a Venn diagram. (a) A º B, C º B, A ¿ C = ∅ (b) A » C, B ¿ C = ∅.

    asked on November 14, 2011
  20. spelling

    I need a sentence with its, not it's.

    asked on September 29, 2010
  21. statistics

    a study found that the average time it took a person to find a new job was 130 days. If a sample of 36 job seekers was surveyed, find the 95% confidence interval of the mean. Assume the standard deviation of the sample is 12 days.

    asked on March 19, 2010
  22. math

    Describe the use of the 10X10 grid to solve the following problem.Your telephone bill was $80 after a %25 increase. What was your bill before the increase?

    asked on November 16, 2012
  23. Math

    Ryan saved $55 more than Jim. Chris saved 6 times as much as Jim. Donna saved half as much as Chris. If the children saved $3245 altogether how much did each child save?

    asked on August 21, 2012
  24. math

    Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

    asked on December 1, 2011
  25. math

    Marnie collects red, blue and purple buttons. At the beginning of the year she has 360 buttons in a box. The ratio of red buttons to blue buttons is 4:3 and there are twice as many red buttons as purple buttons. a.What is the ratio of blue buttons to

    asked on December 1, 2011
  26. math

    Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) are spending a few months at a hillside. They are to stay in a row of nine cottages, each one living in his or her owm cottage. There are no others staying in the same row of hoses.In

    asked on November 30, 2011
  27. venn

    how to draw a venn diagram for: C is a subset of A; B and C have no elements in common

    asked on November 14, 2011
  28. math

    refer to a seven piece tangram: a. if the original square made by the seven tangram pieces has an edge length of 2, what are the edge lengths of the small square piece? b.the parallelogram is what percent of the original square made by the seven tangram

    asked on November 16, 2012
  29. math

    The ratio of the number of male students to the number of female students in a school is 3:8. How many students are there if there are 48 females?

    asked on November 16, 2012
  30. math

    If there are 6 elements in (A U B) and 1 Element in (A N B) answer the following: A. What is the maximum number of elements possible for A? B. What is the least possible number of elements in B? c. if A has "n" elements, how many elements are in B?

    asked on October 26, 2012
  31. math

    prove 5 divided by 17 equals 3 2/5 is correct?

    asked on September 5, 2012
  32. math

    Write the following number in all three forms of expanded notation: -273.32

    asked on September 4, 2012
  33. math

    a baseball team has already played 37 games and won 21 games. The season has a total of 63 games. How many more games do they have to win to keepthe same winning percentage? (answer should be a whole number)

    asked on August 27, 2012
  34. math

    Bari has 180 Mardi Gras beads. 2/3 of the beads are green. 40% of the remaning beads are gold and the rest are purple. What fraction of the beads are gold? how many purple beads does she have?

    asked on August 24, 2012
  35. math

    Bari has 180 Mardi Gras beads. 2/3 of the beads are green. 40% of the remaning beads are gold and the rest are purple. What fraction of the beads are gold? how many purple beads does she have?

    asked on August 22, 2012
  36. math

    You teach 40 students. Blue is a favorite color of 22 studetns; 19 own cars; 13 like flowers; blue is the favorite color of 10 students who own cars; blue is the favorite color of 7 students who like flowers' 8 own cars and flowers; and blue is the

    asked on November 29, 2011
  37. math

    Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) are spending a few months at a hillside. They are to stay in a row of nine cottages, each one living in his or her owm cottage. There are no others staying in the same row of hoses.In

    asked on November 28, 2011
  38. math

    A floor-finishing machine uses bars of wax. Once the bar is worn down to 1/2 its original size, it must be replaced with a new bar. Only full-size bars can be put in the machine. The pieces are melted and recycled to make full-size bars. If you buy 24 bars

    asked on November 10, 2011
  39. Physic

    Now, obtain N(x) and plot it. In the Command Window below, enter expressions for N1 and N2 where N1 =N (x1) N2 =N (x2)

    asked on May 9, 2013
  40. MATH

    1. How would you prepare 950mlof 0.4M Nacl? 2.

    asked on April 23, 2013
  41. math

    in a box of cookies one sixth of the cookies are broken. There are 28 more whole cookies than broken cookies. How many cookies are in the box?

    asked on November 16, 2012
  42. math

    Mr Hash bought some plates at a yard sale. After arriving home he found that 2/3 of the plates were chipped, 1/2 were cracked, 1/4 were both chipped and cracked only 2 plates were w/o chips or cracks. How many plates did he buy in all?

    asked on November 2, 2012
  43. math

    an end-of-season sale for winter clothes advertise 30% to 45% off the original piece. What was the highest original price of a jersey that is now on sale for $12.99. Give your answer as a decimal rounded to the hundredths place.

    asked on November 2, 2012
  44. math

    if the $180 you spend on room and board represents 3/5 of your monthly income, what is your monthly income?

    asked on November 2, 2012
  45. Math

    If there are 6 elements in ( A u B ) and 1 element in ( A n B ) answer the following A. What is the maximum number of elements possible for A? B. what is the least possible number of elements in B? C. If A has 'n' elements how many elements are in B?

    asked on October 29, 2012
  46. math

    1. five friends are standing in a lone of 7th graders to pick up their class schedules. Laura is the 20th person behind Rayma. Rayma is the 50th person ahead of Deanna. Deanna is the 10th person behind Charlotte. Shelly is the 30th person ahead of Laura.

    asked on September 30, 2012
  47. math

    What is the value of the following expression... 2-4+6-8+10-12+14-16+...-100

    asked on September 30, 2012
  48. math

    if a student writes -3 4/5 equals -11/5 what mistake did they make?

    asked on September 5, 2012
  49. math

    make 24/9 a decimal

    asked on September 4, 2012
  50. math

    make 0.237 a fraction

    asked on September 4, 2012
  51. math

    make 2783/1000 a decimal

    asked on September 4, 2012
  52. math

    how can you help a student understand that decimal numbers are fractions?

    asked on September 4, 2012
  53. math

    show why 7.32(times)0.8 has the same number of digits behind the decimal in the answer as it has in the problem.

    asked on September 4, 2012
  54. math

    show why 4.25/0.7 is the same as 42.5/7

    asked on September 4, 2012
  55. math

    Bennett put 4/7 of his paycheck in his checking account, kept 1/2 of the remainder in cash and put the rest in his savings account. What was bennett's salary?

    asked on August 24, 2012
  56. math

    Bennett put 4/7 of his paycheck in his checking account, kept 1/2 of the remainder in cash and put the rest in his savings account. What was bennett's salary?

    asked on August 22, 2012
  57. math

    Meggie has 2,784 stickers. 1/4 of them have glitter, 3/8 of them are felt and the rest are plain. How many of the stickers are felt? what fraction of the stickers are plain?

    asked on August 22, 2012
  58. math

    Stephen has 90 fish. He sold 1/2 of them and gave 1/3 of them to Cody. What faction of the fish was left? How many fish did he give Cody?

    asked on August 22, 2012
  59. Math

    Ticket sales for a recent weekend concert totaled $30000. If 300 more tickets were sold Saturday than in Firday and each ticket cost $25 how many tickets were sold on Saturday ?

    asked on August 21, 2012
  60. math

    in a certain week, a salesman sold a used truck and seven 4-wheelers. the truck was sold for $12,000. If the truck cost 5 times as much as each 4-wheeler, what were his total sales for that week?

    asked on August 20, 2012
  61. math

    carrie, Sam and ester have a total of $570. Carrie has $80 more than sam and ester has 5 times as much as sam. How much does each of them have?

    asked on August 20, 2012
  62. math

    Terry, Dan and heidi have a total of $850. Dan has $120 more than Terry and Heidi has $190 more than Dan. How much money does heidi have?

    asked on August 20, 2012
  63. math

    Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

    asked on December 1, 2011
  64. logic

    Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

    asked on December 1, 2011
  65. math

    You teach 40 students. Blue is a favorite color of 22 studetns; 19 own cars; 13 like flowers; blue is the favorite color of 10 students who own cars; blue is the favorite color of 7 students who like flowers' 8 own cars and flowers; and blue is the

    asked on November 28, 2011
  66. logic

    A famous detective was called in to solve a baffling murder mystery. He determined there was only one cause of death along with the following facts: a.Mr. Harold, the murdered man, was killed by a blow on the head with a brass candlestick. b.Either his

    asked on November 11, 2011
  67. Logic

    Lalph Rauren was famous for discovering potential models as he walked the streets of New York. One day he spotted four girls who later became top models: Amy, Mary, Kay, and Beth. One was discovered walking through an apartment building, one in a coffee

    asked on November 11, 2011
  1. math

    thanks

    posted on November 2, 2012
  2. math

    $23.62 ?

    posted on November 2, 2012
  3. math

    thanks

    posted on November 2, 2012
  4. math

    is the answer $23.62??

    posted on November 2, 2012
  5. math

    when I multipied both sides by 5 and divided both sides by 3 I didn't get a x=? for a answer

    posted on November 2, 2012
  6. math

    nevermind i got the answer (:

    posted on September 4, 2012
  7. math

    in the answer what does the "S" represent, i having a hard time understanding how you came up with the snswer

    posted on August 20, 2012
  8. logic

    thanks

    posted on December 1, 2011
  9. venn

    Thanks Dr. Russ. I had these items drawen just didn't know if it was correct or not.

    posted on November 14, 2011
  10. Math

    (A) such that: A (subset) B; C (subset) B; A and C have no elements in common (B) such that: C (subset) A; B and C have no elements in common

    posted on November 11, 2011
  11. math

    Thanks Steve!

    posted on November 11, 2011
  12. math

    thanks for your help.

    posted on November 11, 2011