# suppose a map is scaled so that a half inch represents 25 miles. how many inches of the map represents 87 1/2 miles?

35,906 questions, page 155
1. ## algebra

Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning \$29.80 in one year. If she had switched the amounts, she would have earned \$35.00. What were

asked by Joel on February 22, 2011
2. ## Math

Max charges \$3.50 per hour when he mows lawns, plus \$6.oo for transportation expenses. Which function rule represents the amount y Max charges to mow lawns for x hours? A.y=9.50x*** B.y=6.00 + 3.50 C.y=3.50 + 6.00 D.y= 2.5x My answer is D

asked by The Weekend on May 16, 2017
3. ## Geometry

I have a question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When ~p v q is

asked by Anonymous on September 27, 2008
4. ## Algebra

A bank teller counts her \$10 and \$5 bills at the end of the day. The total value of the money is \$595. Let f represent the number of \$5 bills. I have to write an equation that represents the total value of the money. I know f = 5 and 2f = 10 but I am stuck

asked by Kristen on May 5, 2015
5. ## Algebra

Sarah has two part-time jobs and needs to earn at least \$300 total per week. Job A pays her \$10 an hour and job B pays \$7.50 an hour. Wite an equality that represents this scenario.

asked by Mohammed Al Subirri on November 28, 2014
6. ## Algebra

You join a racquetball club. Your membership entitles you to unlimited court time. The equation represents the monthly cost y (in dollars) for x hours of court time. Graph the equation.

asked by Cassidy on October 29, 2015
7. ## Math

Eliminate the parameter and write the corresponding rectangular equation whose graph represents the curve. x = sec Q y = cos Q x^2 + y^2 = 1/cos^2 + sin^2/cos^2 = x^2(1 +sin^2) = x^2(2-cos^2) x^2(2-1/x^2) = 2x^2 - 1 x^2 - y^2 = 1 My teacher said to use

asked by Abbey on May 4, 2010
8. ## biology genetics

In Leghorn chickens, + stands for colored feathers and C represents white feathers. At an independently inherited gene, the allele + inhibits color expression, whereas I has no effect on color expression

asked by john on October 16, 2011
9. ## math

Susan has \$25. She is going to spend \$4 on a book, then \$3 per day on lunch. a)Write an equation that represents the following question: "How many days can Susan buy lunch using this plan?" b) Solve your equation, and check your solution.

asked by sam on April 7, 2008

I have a question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When ~p v q is

asked by Anonymous on September 27, 2008
11. ## Geometry

I have a question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When ~p v q is

asked by Anonymous on September 27, 2008
12. ## Geometry repost

I have a question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When ~p v q is

asked by Anonymous on September 27, 2008
13. ## Science

Which of these represents a chemical change? A) two compounds combining to form a mixture B) a mixture being separated into two elements C) a compound being separated into two elements D) an element changing state from solid to liquid

asked by Help Needed on October 12, 2016
14. ## Math

Lindsey has 33 coins in her change purse that are either dimes or quarters. If y represents the number of quarters she has, write an expression in terms of y that describes the number of dimes?

asked by Tammy on September 17, 2012
15. ## math

An ant is on top of a tree 23 meters tall, directly above her home, which is 0.3 meters below the ground. What is an expression that represents the difference in elevation between the ant and her home?

asked by Anonymous on January 30, 2017
16. ## Math

Lindsey has 47 coins in her change purse that are either dimes or quarters. If n represents the number of quarters she has,write an expression in terms of n that describes the number of dimes

asked by Kaitlyn on October 1, 2013
17. ## math

If x+1995 represent the smallest of 1995 consecutive odd integers, then ? represents the 1995th of these same odd integers. A. x+3989 B. x+3990 C. x+5983 D. x+5985

asked by Larry on July 13, 2015
18. ## Math

An ant is on top of a tree 23 meters tall, directly above her home, which is 0.3 meters below the ground. What is an expression that represents the difference in elevation between the ant and her home?

asked by Aubrey T. on May 16, 2016

Allison earns a \$40,000 base salary plus a commission equal to 15% of her total sales. What expression represents what she earns in total? I think it is : 40,000 + 0.15s thank you

20. ## science

Which of the following represents a heterogeneous mixture? A.saltwater B.air C.bleach and water D.chicken noodle soup I think the answer is D. Chicken noodle soup. I don't know exactly.

asked by Angel on February 2, 2015
21. ## math

Bacteria is growing in a petri dish. Initially, there were 15,000 bacteria in the dish. It triples every 8 hours. Write the equation to represents this growth after t hours.

asked by Jordan on April 10, 2014
22. ## physics

for an object sliding down an uneven incline, which of the following represents the change in height necessary for the velocity to double in terms of its initial velocity V? a)2V 2(subscript)*g b)3V/g2(subscript) c)3V 2(subscript)/2g d)3V/2g e)2g/3v

asked by Asim on November 2, 2010
23. ## Pre Algebra

I have a rectangle that represents one whole. There are three sections that equal 1/3 each. I want to subdivide those sections into even & uneven squares. EX: 1/3 divided by 2 = 1/6 I am having trouble identifying the uneven squares. Could you please show

asked by Kyle on September 11, 2015
24. ## maath

The accompanying tree diagram represents a two-stage experiment. (Let x = 0.45, y = 0.55, r = 0.65, s = 0.35, t = 0.4, and w = 0.6.) Use the diagram to find the following probabilities. (Round your answers to three decimal places.) (a) Find P(A) · P(D |

asked by Diana on October 17, 2012

Write a polynomial expression in simplest form that represents the difference between the area of the larger rectangle and the area of the smaller rectangle. Then find the difference when x=4.

asked by Julia on June 3, 2009
26. ## math

Explain, in complete sentences, how you would use the graphing method to solve the following system of equations. Provide the solution to the system and explain what the solution represents on the graph. x + 4y = –16 3x + 2y = 12

asked by ashley on November 5, 2010
27. ## Math

Erin bought 12 yards of landyard.She cut the lanyyard into 1/2 yard pieces. Write an equation that represents the number of pieces of landyard,n,that Erin has now.

asked by Leany on April 23, 2016
28. ## mekele university

the lytton rubber company wishes set a minimum mileage guarantee on its new Mx 100 tire. Tests reveal the mean mileage is 67,900 with the standard deviation of 2,050 miles and that the deviation follows normal distribution. They want to set the minimum

asked by habtsh on December 22, 2015
29. ## Math-Algebra

The pressure of a gas varies directly as its temperature. IF the pressure of a gas is 200 pounds per square inch (lb/in^2) at a temperature of 65.5 degrees C, what is the pressure of the gas when the temperature is 250 degrees F?

asked by McKenna Louise on November 11, 2013
30. ## Managerial Economics

You own and operate PC’s R Us, a firm that manufactures customized computers to meet the specifications of universities that offer online MBA programs. Nearly 70% of your customers are Webster University MBA students. Your firm is not the only business

asked by Nicci on April 14, 2009

Suppose that there is a common resource of size y in a two period society. Each of two citizens, one and two, can withdraw a nonnegative amount c1 or c2 for consumption in period one, provided that c1+c2

asked by quynh on September 14, 2011
32. ## algebra

Michelle has 45 books. Olivia has b fewer books. Which expression represents the total number of books Olivia has?

asked by isabella on March 19, 2014
33. ## Fraction, word problem

Karen has used 12 feet of ribbon for a project. This represents 3/8 of the total amount of ribbon. How much ribbon did she have at the start of her project?

asked by Lisa on January 12, 2016
34. ## Chemistry

Each value below represents a different aqueous solution at 25 °C. Classify each solution as acidic, basic, or neutral. pH=9.72 pOH=4.69 pOH=13.62 [H+]=7.5e-2 [H+]=7.8e-9 [H+]=1e-7 [OH-]=4.5e-12 [OH-]=3.5e-5 pH=4.09 pOH=7

asked by Niloo on October 20, 2011
35. ## Math

Nicole has used 6 feet of ribbon.This represents 3/8 of the total amount of the ribbon she started with. How much ribbon did Nicole have at the start?

asked by Anonymous on February 15, 2016
36. ## math

The cost of soup, s, varies directly with the number of cans, c. When c is 4, the cost is \$3. Which graph represents the cost of the soup?

asked by Sergey on October 24, 2014
37. ## ALGEBRA 2

Sheila needs to determine the equation of a line passing through the point (–6, –2) that is perpendicular to y = 2x– 4. Which equation best represents Sheila's equation?

asked by KELR on January 12, 2012
38. ## math

An adult concert ticket cost \$25 less than twice a chile's ticket. What is the expression that it represents the price of an adult ticket?

asked by gary on February 22, 2012
39. ## Geometry

Lobster fishers in Maine often use spherical buoys to mark their lobster traps. Every year the buoys must be repainted. An average buoy has a 12 inch diameter, and an average fisher has about 500 buoys. A quart of marine paint covers 175 ft squared. How

asked by Shaniqua on April 7, 2013
40. ## Math!!

A square quilt for a child's bed has a border made up of 32 pieces with an area of x each, and 4 small squares with an area of 1 square inch each. The main part of the quilt is made of 64 squares with an area of x squared each. If the quilt is 4 ft by 4

asked by Marissa on November 6, 2006
41. ## English

A local chamber of commerce is publishing a pamphlet. Its purpose is to encourage tourists to visit the area. Data provided by the state tourism office shows that campers tend to like this area of the state. Based on this data, what is the most important

asked by Anonymous on June 5, 2014
42. ## physics

An automobile traveling 80 mi/hr has wheels 31 inches in diameter. If the car is brought to a stop uniformly in 58 turns of the wheels, what is the magnitude of the angular acceleration of the wheels (in radians/second^2)?

asked by CPhy on May 6, 2013
43. ## math HELP

Identify the missing info that would be necessary to solve the following which type of graph would be more appropriate to represent the number of inches of rain during a 6 - week period a bar graph or a line graph?

asked by daniel on October 3, 2013
44. ## English

Which of the following sentences contains an italicized word that's used as a predicate adjective? A. Jerry looks ill today.(ill is italicized) B. Jerry looks into the microscope.(into is italicized) C. Jerry looks disdainfully at the pile of

asked by Cassie on November 6, 2013

In some industrial processes, sodium chromate is added to water coolants. When the coolant is drained, the chromate ions can be removed through an electrolysis process that uses an iron anode. The products of the electrolysis are aqueous iron(II) ions and

asked by yo! on June 19, 2006
46. ## chemistry

You weigh a sample of a monoprotic unknown acid and dissolve it in 50.00 mL of distilled water. Exactly half of this solution is titrated with Sodium Hydroxide to the phenolphthalein end point. The pH of the other half of the original solution is measured

asked by faruk on July 30, 2013
47. ## College Chemistry

You weigh a sample of a monoprotic unknown acid and dissolve it in 50.00 mL of distilled water. Exactly half of this solution is titrated with Sodium Hydroxide to the phenolphthalein end point. The pH of the other half of the original solution is measured

asked by Kim on April 9, 2013
48. ## Math

Austin is in his pedal boat. It takes him 1.5 hours to travel 12 miles downstream and 6 hours to return. What is the rate of the current? Please show me how to solve it as well, I really have no idea. Thanks.

asked by Catherine on March 10, 2013
49. ## math

Find the distance btw two cities. Assume that the Earth is is a sphere of the radius 4000 miles and that the cities are the on the same longitude(one city is due north of the other).

asked by salma on October 5, 2015
50. ## Math

asked by Patrick on September 19, 2018
51. ## math

Two trucks are traveling in the same direction, one going twice as fast as the other. At the end of 6 hours they are 204 miles apart. How fast is each travelling? Can you guys show me the answer i got 68 and 146 but its wrong

asked by allie on January 5, 2017
52. ## Math

Millwood City is constructing a new highway through town. The construction crew can complete 5 3/5 miles of road each month. 6Can the highway be finished in 8 months?

asked by Millwoof on May 12, 2015
53. ## math!!!!

One lap around the track is equal to 1/8 of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. What was the horse's average speed in miles per minute?

asked by Lidia on February 9, 2014
54. ## History

Which early civilization had a well-organized, unified empire with an organized system of roads covering more than 10,000 miles A. Iroquois B. Aztecs C. Mayan D. Incas

asked by I hate life on August 23, 2018
55. ## math

Two planes took off from a Chicago airport flying in opposite directions. One plane traveled 30mph faster than the other. They were 1500 miles apart after 2hrs. How fast was each flying

asked by Ciee on September 19, 2011
56. ## math algebra

a motorboat, which can travel at 20 miles per hour in still water, takes 3/5 as long to travel downstream on a river from a to b, as to return. Find the rate of the rivers current.

asked by chelsy on September 22, 2016
57. ## Math

If a navigation error puts a plane 2 degrees off course, how far off course is the plane after flying 121 miles? Round to the nearest tenth of a mile. Just explain how to solve, please.

asked by Ana on May 5, 2014
58. ## A/P Calculus

A cyclist is riding on a path whose elevation is modeled by the function F(X)=0.2x where x and f(x) arte measured in miles. Find the rate of change of elevation when x=5. ? Supposed answer: ?? 1

asked by Lindsey on November 9, 2013
59. ## Physics

A bomb is dropped from an airplane travelling horizontally with a speed of 300mph. If the airplane is 10000 ft above the ground, how far from the target must it be released? Use g = 32 ft/s.s Express your answer in miles.

asked by Bentong on March 11, 2016
60. ## physics

what will be the speed of a 500 kilogram satellite if we apply 100N force on it after each second till 10 hours.the current velocity of this satellite is 16,800 miles per hour?

asked by pooja on April 13, 2016
61. ## Armwood

Abby’s bus left at 2:00, going southbound at 55 mph. Bob’s went northbound starting at 3:00, going only 45 mph. How long will it take for them to get 420 miles apart? Round to the nearest tenth if necessary

asked by Anonymous on April 2, 2013
62. ## A/P Calculus

A Cyclist is riding on a path whose elevation is modeled by the function f(x) = 0.08(16x-x^2) where x and f(x) are measured in miles. Find the rate of change of elecation when x=4. Would this be 0.64? dx/dt would be 1.28 - 0.16x and then plug in four?

asked by Lindsey on November 9, 2013
63. ## Math

The formula r=2sqrt(...)5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feet. How far will Acari skid at 20 mph?

asked by Teddy on April 1, 2014
64. ## physics

what will be the speed of a 500 kilogram moving satellite if we apply100N force on it after each second till 10 hours and current velocity of this satellite is 16,800 miles per hour?

asked by vikram on April 12, 2016
65. ## Elementary Math

This is going to seem like a simple question but how do i solve this without dividing.. 5th grade math mom Question: Lester's car can go 15.4 miles on 1 gallon of gas. How far can he go on 0.7 gallons? Thanks

asked by Sara on January 2, 2014
66. ## Algebra

According to the Guiness Book of World Records, the peregrine falcon has a record diving speed of 168 miles per hour. Write the speed in feet per second.

asked by Mary on October 15, 2007
67. ## precalculus

an airplane flying at 550 miles per hour has a bearing of N 52(DEGREES)E. After flying 1.5 hours, how far north and how far east has the plane traveled from its point of departure?

asked by sara on March 11, 2010
68. ## science

on a train traveling at a velocity of 45 miles per hour, ally slows the train down to a stop over a distance of 600 meters. what is the acceleration? (answer in m/s squared)

asked by ty on May 2, 2011
69. ## math

A kayak moves at a rate of 12 mph in still water. If the rivers current flows at a rate of 5mph how long does it take the boat to travel 23 miles upstream?

asked by ashley on September 16, 2012
70. ## Math

Bob and Mary start traveling toward each other from 480 miles apart, each moving at the same speed. They meet after four hours. How fast were they each traveling? I had 20 and then 144 I have tried this problem and everything is wrong.

asked by Kati on June 30, 2015
71. ## math

Jimmy is traveling at a speed of 135 miles per hour (mph). What is his speed in feet per second? Include units in the calculation to show the unit conversion.

asked by Sam on September 3, 2010
72. ## physics

a dog escapes from his front yard a 3:15pm and is discovered 3.5 miles from home at 4:50pm. What is the dog's average speed in mph. how do you solve this i am lost

asked by angela on February 7, 2012
73. ## Science

Goldie goldfish a speed swimmer loves to race around the parks poud which is .5 miles around. If she can swim 20 laps around the track in 2 hours, what is her average speed?

asked by Nikki on December 18, 2013
74. ## math

Two surveyors with two-way radios leave the same point at 9:00 A.M., one walking due south at 3 mi/hr and the other due west at 4 mi/hr. How long can they communicate with one another if each radio has a maximum range of 7 miles?

asked by Sue on September 21, 2014
75. ## Math

One lap around a track is one-eighth of a mile. A horse ran a distance of 11 laps in 3 minutes and 30 seconds. What was the horse's average speed in miles per minute?

76. ## math

a circular track has a radius of 100ft. elena wants to run 2 miles. There are 5,280 ft in a mile. Can you find the circumference of a circle if you know the radius? explain your answer

asked by daisy on March 1, 2011
77. ## Algebra

A taxicab charges \$.90 for the first 1/5 mile and \$.60 for each additional 1/5 mile. If a customer rides in this cab for m miles (m>1/5) , which of the following functions descibes the cost,c(m), of this tax ride in dollars?

asked by Anonymous on August 9, 2013
78. ## Maths

Ellen minivan gets 18 miles per gallon on the highway. If her fuel holds 13.5 gallon,then how far can he travel on one full tank of gas.Round off to the nearest mile

asked by Dawn on May 11, 2017
79. ## Social Studies

In Western Europe, why do most people live within 100 miles of the coast? A. for good soil for farming B. for reasons that involve climate changeZ++ C. for iron ore and coal D. for trade and transportation.

asked by dori on February 10, 2019
80. ## Math Word problem

Ben and Ken live in homes that are 10 miles apart. Both left their respective home at 10:00 am to visit the other person. If Joya travels at an average speed of 35mph and Tanya 45 mph, at what time will they cross each other?

asked by Anonymous on February 12, 2013
81. ## Algebra 2

An Amtrak heading toward Boston at 90 miles per hour would go how far in eight and ahalf hours? asl? 17/M/MD Why?? 90 mi/hr x 8.5 hrs = ?? 765miles go to this site and sign up then add me as a friend:grab . com Mira_Me_Bien is my sn right. Note that in my

asked by Brian on November 1, 2006
82. ## ETH/125

I have to write a final over race and my community and I am having trouble with the introdutcion. The instructions say " Your thesis statement must address racial issues in your local community. Please make sure that you have a well-written introduction.

asked by Anonymous on August 27, 2010
83. ## Calculus

Suppose you are in a room that is a*10 meters. You can walk normally along the "a" meter long wall at "s" meters per second and crab walk in any direction at 1 meter per second. You start at one corner of the room, walk normally along the wall of length

asked by Sarah on March 25, 2016
84. ## physics

Two identical wooden barrels are fitted with long pipes extending out their tops. The pipe on the first barrell is 1 foot in diameter, an the pipe on the second barrell is only 1/2 inch in diameter. When the larger ptpe is fill with water to a height of 20

asked by Loui on April 24, 2011
85. ## math

1)The function f is defined by the equation f(x)+ x-x^2. Which of the following represents a quadratic with no real zeros? A)f(x) +1/2 B)f(x)-1/2 C)f(x/2) D)f(x-1/2) 2) If I^(2k) = 1, and i = radical -1, which of the following must be true about k? A) k is

asked by Aline on March 2, 2018
86. ## Math

There is a graph and on the right hand side it has numbers going up from 0, 7, 14, 21, 28, 35, 42, 49, 56, 63, 70 these numbers represent Time (days) on the bottom it has 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 which represents Time (weeks) The math question is

87. ## Chemistry

1.Identify the type of isomer (structural, geometric, or optical) each of the following pairs represents. A. CHBrClF and CHBrFCl B. n-butane and 2-methylpropane C. trans-2-pentene and cis-2-pentene For A I think it would be Geometric For B I think it would

asked by Samantha on May 3, 2018
88. ## Math

The fixed cost is \$500,000 and the variable cost is \$.50 per cd. The company sells each CD to record stores for \$5. X represents the number of cds produced and sold. How many disks must be sold for the company to break even?

asked by Marie on March 27, 2012
89. ## Geometry

This is a geometry question about disjunctions. The symbol "v" represents "or". "~" stands for "negation of" Here are two questions I need help with: 1. When p v ~q is false, then p is ______ and q is _____. I think "false" belongs in both spaces. 2. When

asked by Anonymous on September 28, 2008

A lawn care company charges a \$10 trip fee plus \$0.15 per square foot of x square feet of lawn for fertilization. Which equation represents the relationship? a. x= 0.10y+15 b. y= 0.15x+10 c. y= 10x+0.15 c. x= 10y+0.15 *

asked by karly on October 29, 2014

Patient motion may create artifact that looks like an atrial arrhythmia? True or False. True The ECG tracing represents a 3 dimensional view of the heart's electric activity? True or False. True

asked by Mary on September 19, 2013

Patient motion may create artifact that looks like an atrial arrhythmia? True or False. True The ECG tracing represents a 3 dimensional view of the heart's electric activity? True or False. True

asked by Mary on September 19, 2013
93. ## math

the productivity of a person is modelled by the function y=5cos(pi/2 t)+5, where t is in hours and t>and equal to 0. if the person starts work at 8:00am and works for 12 hours determine at what times they are least productive.assume that t=0 represents

asked by Stacy on July 21, 2016
94. ## Algebra

The stem-and-leaf plot represents the average monthly high temperatures in Tampa, Florida. What is the first quartile (Q1) of the temperatures? Round to the nearest tenth. Stem leaf 6 9 7 1267 8 14799 9 00

asked by Allie on May 2, 2013
95. ## math-matrix equations

I have a problem with the following homework question: Which product represents the solution to the system: -y + 7x=14 -x + 4y=1 a. | (1/27) (4/27)| | (7/27) (1/27)| b. | (-7/3) (4/3) | | (-1/3) (1/3) | c. | (7/3) (-4/3) | | (1/3) (-1/3) | d. | (-1/27)

asked by Jennifer on May 2, 2008
96. ## math

The displacement s (in metres) of a body in a damped mechanical system, with no external forces satisfies the following differential equation: 6 3 2 2    dt ds dt d s where t represents time in seconds. If at time t = 0, s = 0 and  5 dt ds m/s,

asked by Karl Haxell on May 17, 2011
97. ## physics

If a vector that is 1cm long represents a velocity of 10km/h, what velocity does a vector 2cm long drawn to the same scale represent? An airplane has an airspeed of 100km/h north. If there is a 30 km/h tailwind, what is its groundspeed?

asked by Paulina on November 9, 2011
98. ## Physical Science

No system is completely closed off from its surroundings. Which represents a system that is almost completely closed? A. a capped soda bottle B. a wood-burning fireplace C. a washing machine D. a pot of boiling water I believe it is A.

asked by dark1 on February 17, 2014
99. ## math

As part of a school science project, Jacob bought some bulbs for a total of \$18. The cost of each bulb was \$3. How many bulbs did Jacob buy? Write an equation with a variable and state what the variable represents.

asked by D on May 24, 2017
100. ## Finance

9. The variable (A) in the utility formula represents the: a. investor’s return requirement. b. investor’s aversion to risk. c. certainty equivalent rate of the portfolio. d. preference for one unit of return per four units of risk.

asked by Anonymous on September 6, 2010