# Jon

Newest questions and responses by Jon
1. ## Math

How to calculate contribution margin that includes step variable cost? As an example: Ticket price per person: \$50 Fixed cost: \$60,000 Variable: \$15 per person for first 10,000 customers, \$10 per person for 10,001 to 15,000, \$5 per person for 15,001 to

4/7÷9/14

3. ## Physics

If a wire of resistance R is stretched uniformly to 2.8 times its initial length, by what factor does the power dissipated in the wire change, assuming it remains hooked up to the same voltage source? Assume the wire's volume and density remain constant.

4. ## Intermediate Algebra

Suppose a college bookstore buys a textbook from a publishing company and then marks up the price they paid for the book 33% and sells it to a student at the marked-up price. If the student pays \$75.00 for the textbook, what did the bookstore pay for it?

5. ## Nuclear Physics

Radioactive Carbon 14 (atomic number 6) is produced in the atmosphere when a neutron is absorbed by Nitrogen 14 (atomic number 7). Write the reaction and write its Q-value.

6. ## Math

Arrange from lowest to highest. 3(6/30), 0.5, 6/13, 1/4 Please explain how :'(

7. ## math

At first, a price was decreased by 12%, then it was discounted again by an additional 5%. What is the total percent of the discount?

8. ## Physics

A car is traveling with a kinetic energy if 2200 J. If a braking force of 1100 N is applied to the car, how far will the car travel before it stops?

9. ## Physics

A car is traveling with a kinetic energy if 2200 J. If a braking force of 1100 N is applied to the car, how far will the car travel before it stops?

10. ## math

Robert spins the spinner and rolls a standard number cube. Find the probability that the spinner will stop on purple and the cube will show a six. The spinner has six equal slices, 1 purple, 3 green, 1 yellow, 1 red.

11. ## Math

A man goes 7m east and then 24m to south. Find his distance from the starting point

12. ## math! Quantitative methods!

Discuss 5 application areas of assignment methods of Linear programming.

13. ## thomas middle such

what is the three digit mystery number? if it is less than 300. the tens digit is 5 more than the hundreds digit. the sum if the digits is 11. the hundreds digit is 3 less than the ones digit. the mystery number is

14. ## Maths

Two identical jars are filled with mixtures of water and vinegar in the ratios of 2 to 1 and 3 to 1 respectively. If both jars are emptied into another container then the ratio of water to vinegar in the resulting mixture is.

15. ## Algebra

Billy weighs 50lbs less then his brother together they weigh 210lbs what is the equation to figure out how much billy weighs

16. ## math

How many \$1 bills are the same as__________\$10 bills?________-

17. ## GEOMETRY

IF RAYAC BISECTS ANGLE DAB,AND ANGLE DAC =58,WHAT IS MOF ANGLE DAB?

18. ## math

In the SmallState Lottery, three white balls are drawn (at random) from twenty balls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten balls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and one

19. ## Trig

find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a y-intercept of 5.

20. ## Science

A 2 kg mass is hanging from a spring with a constant of 1500 N/m. The mass is pulled down a distance of 0.3 m and then released. If the specific heat capacity of the spring is 0.35 J/gK, the spring has a mass of 10 g and the initial temperature of the

21. ## algebra 2

Question: Write the equation of a cubic function that has the x-intercepts of -4, 2, and 5 and passes through the point (6,20) My Answer: y = .5x^3-1.5x^2-9x+20 What I did: Put the x-intercepts and given point into stat plot (on calculator) then hit stat

22. ## Physics

A 50 g sample of an unknown metal is heated to 90.0C. It is placed in a perfectly insulated container along with 100 g of water at an initial temperature of 20C. After a short time, the temperature of both the metal and water become equal at 25C. The

23. ## Math

Don's pays his jimmy 2.00 per hour for the first hour. He plans to pay him double for the next six hours. How much would he earn at the end of six hours?

24. ## accounting

wat is the similarity between traditional costing and activity based costing?

25. ## calculus

A wire along 1 meter is divided into three parts . The first part is formed into a circle , the second part is formed into an equilateral triangle , and the third part is formed into a square . Determine the size of each section so that the total area of

26. ## Physics

Salt water is poured into a U tube until it stands 0.250 m high in each arm. Oil is then added slowly to one arm until the salt water in the other arm stands 0.300 m high. The free surface of the oil then stands at 0.321 m high. (the weight density of the

27. ## Mays

A Java book is comprised of two sections core and advanced Java in the ratio 7:3. How much of each type of content will be needed to make a book of 450 pages?

28. ## Therrell

When measuring distance 12 beads are Approxmately equal to 6 erasers. How many erasers are equal to 18 beads? How many beads equal to 42 erasers?

29. ## Mays high school

Mr. Jeff divided his money in the ratio 4:2 between Jon and jack. Jon got the smaller amount of 1,256. How much did jack receive?

30. ## Honors Chemistry

Predict Products and write balanced equation FeBr3 + 3Ba(0H)2

31. ## Kennedy

There are 28 classes at an elementary school. The school cafeteria needs 22 cartons of milk per class each day. Milk costs 25 cents per carton. How many cartons of milk does the manager need to order each day?

32. ## Math

How many numbers can be formed by multiplying some or all of the numbers 2,3,4,5,6,7,8? The answer is 48 but I don't know how to get there?

33. ## english

You want to determine how many rainfall will fall in a certain time period. You collect rain as they fall from the sky onto a piece of bucket with an area of t square meters. If you want to determine the rainfall count as accurate as possible, you should

34. ## english

You want to determine how many rainfall will fall in a certain time period. You collect rain as they fall from the sky onto a piece of bucket with an area of t square meters. If you want to determine the rainfall count as accurate as possible, you should

35. ## Physics

A certain car is capable of accelerating at a uniform rate of 0.83 m/s2 . What is the magnitude of the car’s displacement as it accelerates uniformly from a speed of 80 km/h to one of 92 km/h? Answer in units of m.

36. ## Science

If the specific heat of a marshmallow is 2 J/g, how much heat is given off when it cools from room temp (25C) to its liquid nitrogen bath. Weight of the marshmallow 7.4g

37. ## math conversion

convert from Chinese into American standard measurement; 1800 24Kg. Please,

38. ## Carmel

A memory card is one quarter full when 375 more pictures are taken it'll be two thirds full how many pictures can the memory card hold and how many pictures are on it?

39. ## physics

If a small planet were discovered whose orbital period was twice that of Earth, how many times farther from the Sun would this planet be?

40. ## World History

What were social, political and economic causes of WWI?

41. ## Science

What is the momentum of a 2 kg rock moving at 3m/s?

42. ## Science

Describe the difference between the momentum between a tennis ball and a wrecking ball that is thrown at the same speed.

43. ## Math

How do I solve this problem? 6C3 A. 120 B. 720 C. 20 D. 240 Is it 6*5*4*3*2*1

44. ## physics

An object is released from rest at an unknown height h above the ground. One second later a second object is released from rest at the same height. When the first object strikes the ground, the second is 20 m above the ground. What is the initial height h?

45. ## Math

A painter bought some paint for \$500. He paid \$x for each litre of paint. He accidentally spilt 5 liters of paint and sold the remainder of the psint for \$2/litre more than he paid for it. If he made a profit of \$40, find the amount he paid for each litre

46. ## FINANCE

Below is a list of account balances for Currie Hospital as of December 31, 2013. Prepare a balance sheet as of December 31, 2013, in proper form. (Hint: You will need to compute the net assets account. Assume that all net assets at the beginning of the

47. ## organic chem

does 2,3 hexanediol have 2 stereocenters? I just wanna check that before i attempt to draw isomers

48. ## Chem NMR

this one is dealing with H NMR... The compound is N,N-dimethylacetamide. Why would there be 2 distinct peaks from the 2 Methyl groups attached to the Nitrogen atom? This would suggest they are in different environments, why?

49. ## CHEM NMR

this one is dealing with H NMR... The compound is N,N-dimethylacetamide. Why would there be 2 distinct peaks from the 2 Methyl groups attached to the Nitrogen atom? This would suggest they are in different environments, why?

50. ## Accounting

The GoodTaste Club collected recipes from members and published a cookbook entitled Eat 'Em Up. The book will sell for \$18 per copy. The chairwoman of the cookbook development committee estimated that the club needed to sell 14,600 books to break even on

51. ## chemistry

1. You are given a mixture containing two compounds, A and B. Both compounds have a solubility of 1 g/ 100 mL of solvent at 20 °C and 16 g/ 100 mL of solvent at 100 °C. The sample is composed of 3.5 g of A and 10 g of B. At 100 °C the entire sample just

52. ## social studies

what is the greatest challenge facing people in turkey as a result of its diversity? 1. Turks must protect their status as the largest ethnic group 2. Turks must encourage other to follow Turkish traditions 3. Kurds must struggle to keep their cultures

53. ## art

an artist loved to work with smooth, flowing paint that has vibrant color. Know she has many months to finish a commission. Her best choice for a material would be: 1. tempera paint 2. oil paint 3. acrylic paint 4. watercolor'

54. ## social studies

How do people make up for water scarcity in the dry parts of Israel? 1. by building dams 2. by trading in oil 3. by using irrigation pipelines 4. by importing fresh water

55. ## math

A rock is thrown up in the air at 30 ft/second. It has height in feet given by H(t) = −16t 2 + 30t. When does the rock have a velocity equal 10 ft. per a second?

56. ## Math

Write in simplest form 4/7 divided by 5/8

58. ## PHYSICS

A 1250 KG wrecking ball is lifted to a height of 12.7 m above its resting point . When the wrecking ball is released, its swings toward an abandoned building and makes an indentation of 43.7 cm in the wall. A) What is the potential energy of the wrecking

59. ## Chemistry

As a purity check for industrial diamonds, a 22 - carat diamond (1 carat = 0.2g) is heated to 63 degrees C and immersed in 26g of water in a constant pressure calorimeter. The initial temperature of the water is 23 degrees C. Calculate the ΔT of the water

60. ## Chemistry

2C2H2(g) + 3O2(g) 4CO(g) + 2H2O(g) What is delta G° for this reaction in J/mol? (T = 298.17 K)

61. ## Chemistry

Calculate the heat transferred when a 23 g of iron nail is cooled from 67oC to 20oC. The specific heat of iron is 0.45 J/goC.

62. ## Chemistry

A skillet made of Iron (Fe) weighing 1.8 kg is heated on a stove to a temperature of 202 degrees C. If the skillet is removed from the stove and allowed to cool to room temperature (21 degrees C), how much heat must be removed from the skillet. The

63. ## Chemistry

A current of 4.00 A is passed through a solution of AgNO3 for 1.00 hr. What mass of silver is deposited at the cathode? (In grams) Use Faraday's constant F = 9.65x10^4 C/mol

64. ## Chemistry

How long (in seconds) does it take to deposit 1.065e+001 g Zn on a steel gate when 2.375e+001 A are passed through a ZnSO4 solution?

65. ## Physics

A high fountain of water is located at the center of a circular pool as shown in the figure below. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 18.0 m. Next, the student stands at the edge of the

66. ## Science

Assume that you have 15ml of 2.5M potassium hydroxide but only have concentrated bottle of 16M strength. How would you obtain this

67. ## algebra

a train travels 600 miles from Los Angles to San Francisco traveling at a certain speed the return trip is made traveling 40 mph faster the return time is 4 less how fast was the train traveling in each direction?

68. ## Calculus

Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x

69. ## physics

A football is kicked off with an initial speed of 65 ft/s at a projection angle of 45 degrees. A receiver on the goal line 63 yd away in the direction of the kick starts running to meet the ball at that instant. What must be his minimum speed (in

70. ## math

Find a scalar equation of the plane that contains the given point P=(-3,-3,1)and the given normal vector n = (-1,4,7)

71. ## AP Chemistry

Form 300 mL of 0.25 M Copper 2 sulfate pentahydrate

72. ## Math

A waiter made \$120 in tips after waiting on 6 tables. What was the waiter's average tip per table?

73. ## Physics

A commuter backs her car out of her garage with a constant acceleration of 1.40 m/s2. (a) How long does it take her to reach a speed of 1.60 m/s? s (b) If she then brakes to a stop in 0.8 s, what is her (constant) deceleration? m/s2

74. ## math

80% of the American population likes pizza. If 8 Americans are chosen at random, find the probability that 6 of them like pizza.

75. ## scienc

Mass of a bick

76. ## physics

With a magnetic field perpendicular to a single 13.2 cm diameter circular loop of copper wire decreases uniformly from .670 T to zero. If the wire is 2.25 mm in diameter how much charge moves past a point in the coil during this operation?

77. ## Chemistry

An equilibrium mixture in a 10.0 L flask contains 7.0 mol HI(g) and 1.0 mol each of I2(g) and H2(g). If 2.5 mol H2, 5.0 mol I2 and 2.0 mol HI are added to that equilibrium mixture how many moles of each gas will be present when equilibrium is

78. ## finance

A bond that has a \$1000 par value (face value) and a contract or coupon interest rate of 11.1%. The bonds have a current market value of \$1125 and will mature in 10 years. The firms marginal tax rate is 34%. The cost of capital from this bond debt is what

79. ## Physics

A toy dart gun has a spring with a spring constant of 315 N/m. An 12 gram dart is loaded in the gun and the spring is compressed a distance of 7.8 cm and then shot into the air. When the dart is 5.8 meters high in the air, what is its speed? If the maximum

80. ## math

If a new home can be constructed for \$160,000, what is the opportunity cost of federal defense spending, measured in terms of private housing? (Assume a defense budget of \$700 billion.)

81. ## probability

We have two fair three-sided dice, indexed by i=1,2. Each die has sides labelled 1, 2, and 3. We roll the two dice independently, one roll for each die. For i=1,2, let the random variable Xi represent the result of the ith die, so that Xi is uniformly

82. ## probability

Given that there were 4 Heads in the first 7 tosses, find the probability that the 2nd Heads occurred at the 4th toss. Give a numerical answer.

83. ## algebra I

drop a ball at 30000 feet at 30 feet per second and a ball bounces up at 40 feet per second what height do they meet and what speed

84. ## Physics

A car is traveling at 16.0 m/s, and the driver sees a traffic light turn red. After 0.500 s (the reaction time), the driver applies the brakes, and the car decelerates at 8.00 m/s2. What is the stopping distance of the car, as measured from the point where

85. ## Physics

A uniform beam of weight 245 N, and length L, sticks out from a vertical wall. A lightweight cable connects the end of the beam to the wall, making an angle of 65.0° between the beam and the cable. What is the tension in the cable?

86. ## Math

P(x) = (2x^3+x^2-18x-9)/(x^2-x-6) 1.Find any holes in the graph of P(x) 2.Find any horizontal or oblique asymptote 3.Determine where it crosses the horizontal/oblique asymptote (if it does)

87. ## statistics

Typing speeds among college students are normally distributed with a mean of 60 words, and a standard deviation of 10 words. determine the typing speed that separates the top 6% typists from the rest.

88. ## Statistics

142 out of 507 people were right. Calculate a 95% confidence interval for the proportion of the entire population that could be right. I did some of the work …Please help. I am getting .0199 SD =sqt(.28(1-.28)/506 = .0119 so .28 +/- .0119 so I could say

89. ## Statistics

142 out of 507 people were right. Calculate a 95% confidence interval for the proportion of the entire population that could be right. I did some of the work and got .72...don't know what to do with this? Please help.

90. ## Trigonometry

a 100 pound box hangs between two ropes T1 and T2 the angle at the top of T1 is 28 degrees and the angle at the top of T2 is 35 degrees. what does T1 and T2 equal? Must show work

91. ## Trigonometry

A box is on a 10 degree incline with 180 pounds of force against the box. What is the weight of the box?

A rod is 2.40 m long and has a diameter of 2.50 mm. A force of 2000 N is applied to the end to stretch the rod by 1.00 mm. What is the tensile modulus for this rod? 7.50 × 1011 N/m2 8.70 × 1011 N/m2 9.78 × 1011 N/m2 10.2 × 1011 N/m2 10.8 × 1011 N/m2

93. ## Algebra 2

In triangle FGH, the measure of angle G is three times that of angle F. The measure of angle H is 20 degrees more that that of angle F. Find the angle measures

94. ## english

Can someone check my english essay. 700 words. I have English as 2nd language

95. ## Chem still confused

1.) A biochemistry student wants to make 4 liters of a phosphate solution using 48.6 g Na2HPO4 (FW=141.96) What is the concentration of this solution? 2. When she reaches the storeroom she finds that there is no Na2HPO4, however there is a bottle of

96. ## Chem wondering how to set it up

1.) A biochemistry student wants to make 4 liters of a phosphate solution using 48.6 g Na2HPO4 (FW=141.96) What is the concentration of this solution? 2. When she reaches the storeroom she finds that there is no Na2HPO4, however there is a bottle of

97. ## finance

A thirty-year U.S. Treasury bond has a 4.0 percent interest rate. In contrast, a ten-year treasury bond has an interest rate of 3.7 percent. If inflation is expected to average 1.5 percentage points over both the next ten years and thirty years, determine

98. ## statistics

There is a table of AVERAGE monthly temperatures of two different areas of the same city. A scatterplot of the data is made to show that the relationship is linear between the two. If raw data was used instead of the averages to make the scatterplot, the

99. ## Physics

A thin massless horizontal pipe rotates about a vertical axis with angular speed ω as shown in the figure. A small bug, located at a distance r from the axis, starts crawling inside the pipe at constant speed v (relative to the pipe). Because of the bug,

100. ## physics

True or false. Electric energy is transferred from generating stations to consumers' premises at extremely low voltage?