Thursday

May 28, 2015

May 28, 2015

Number of results: 129,234

**Chemistry**

A bug is observed to travel 72 cm in 7.5 seconds. What is the bug's speed in miles per hour?
*September 11, 2012 by L*

**math**

On a recent math test, monique earned an 85%. Which value represnts the amount monique did not answer correctly?
*April 7, 2014 by anonymus*

**maths**

1. a first train travelling at x km an hour takes t hour less to travel y km than a slower one takes to travel z km . find the different between their speed 2. a man has one kind of coffee at 'a' paise per kg and another at 'b' paise per kg how much of each must take to form a...
*May 19, 2012 by saila*

**algebra 2**

A rental car agency charges $13 per day plus 12 cents per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. How many miles per day will have to be driven for the cost of a car form the second agency?
*May 25, 2010 by Anonymous*

**Math**

If a pitcher throws a ball to homeplate at a speed of 57 miles per hour for the distance of 47 feet how long does it take to cross homeplate? I multiplied distance x speed and got 2679 but not sure what that means???
*August 29, 2014 by Alicia Martinez*

**Math**

My daughter's homework and I cant figure it out for the life of me. In America the average person spends about 9.5 billion minutes on the phone a business day. In 1997 the estimated population of Americans the ages of 19-64 is about 163,000,000. About how many minutes does the...
*September 27, 2006 by SherylA*

**economics**

suppose a firm's constant-returns to scale production function requires it to use capital and labor in a fixed ratio of two workers per machine to produce 10 units and that the rental rates for capital and labor are given by v=1, w=3. a. calculate the firm's long run total and...
*October 4, 2007 by jon*

**math**

A plane that flies 170 miles per hour is flying 510 miles. How long will the trip take?
*April 28, 2010 by joe*

**math**

Abner walks 3 miles per hour. At this rate, how long will it take him to walk WebEQ Image miles?
*January 18, 2011 by Anonymous*

**math **

what rule relating time and distance can help me calculate the traveled for 950 miles in bus at 60 miles per hour?
*January 30, 2011 by monserrate*

**Geometry**

A model airplane's fligth lasted nearly 38 hours. What was his miles per hour if the distance was 1,883 miles?
*August 25, 2011 by Heather*

**algebra 1**

a model airplane flies 18 feet in 2 seconds. What is the airplane's speed in miles per hour?
*December 8, 2008 by Giovanna*

**Calculus**

A searchlight rotates at a rate of 2 revolutions per minute. The beam hits a wall located 8 miles away and produces a dot of light that moves horizontally along the wall. How fast (in miles per hour) is this dot moving when the angle between the beam and the line through the ...
*October 30, 2011 by Reonea*

**Math**

Mrs monk rented a truck for 3 days. Enterprise charged her $40. per day plus $.25 per miles. The total charge was $142.75. How many miles did she drive the truck? (1) 411 miles (2) 91 miles (3) 251 miles (4) 571 miles
*February 20, 2015 by Sunny*

**geometry**

If Jan takes exactly 30 minutes to walk to school each day, and her school is 2.3 miles away, what is her average walking speed (rounded to the nearest tenth)?
*February 20, 2011 by chip*

**Economics**

Asher is a stay at home dad who provides math tutoring for extra cash. At a wage of $30 per hour, he is willing to tutor 5 hours per week. At $45 per hour, he is willing to tutor 6 hours per week. Using the midpoint method, the elasticity of Asher’s labor supply between the ...
*September 21, 2009 by Jon*

**4th grade**

If a car is traveling 60 miles per hour, how far does it travel in one minute? Thanks
*December 17, 2008 by Justin*

**Mathematics**

Anthony uses 1.2 metres of leather and one buckle when he makes a leather belt. He can make 15 belts per hour and he values his labour $11 per hour. Anthony buys his supplies in bulk. The leather comes in rolls 50 metres long at a cost of $180 per roll and the buckles come in ...
*February 7, 2012 by CrissyXD*

**algebra**

Ace car rental rents a car for $45 and .25 cents per mile. Star rental car rents a car for $35 and .30 cents per mile. How many miles would a driver need to drive before the cost of renting a car at these two places were the same?
*October 24, 2014 by Anonymous*

**math**

When James drove to a concert last night, it took him 3 hours and 30 minutes. He averaged 60 miles an hour on the way there. How far did he drive one way?
*December 19, 2013 by lulu*

**Algebra**

I needed help with these problems: 1.Charles wants to dig a rectangular flower bed which is twice as long as it is wide. Let x be the number in feet in width. If you are given a width for the rectangle, would you evaluate the expression or write an equation and solve in order ...
*August 21, 2008 by Jillian*

**Math**

A car rental agency charges $120 per week plus $.12 per mile driven. How many miles did you drive if the total charge is $162?
*February 21, 2013 by Anonymous*

**algebra**

Minute hand of a clock is 10 inches long. how far does the tip of the minute hand move in 15 seconds? I got that=5 pi BUT What speed is it moving in miles/hr???? algebra - PsyDAG, Sunday, November 13, 2011 at 1:38am Assuming it does move 5 pi, convert 5 * 3.1416 = 15.7 inches ...
*November 13, 2011 by Angela*

**Rational Functions Word Problem**

A car travels at a constant speed and burns g(x) litres of gas per kilometer, where x is the speed of the car in kilometers per hour and g(x) = 1280 + x^2/320x a) If gas costs $1.29 per litre, find the cost function C(x) that expresses the cost of the fuel for a 200 km trip as...
*October 6, 2014 by Trisha*

**Economics/Calculus**

Asher is a stay at home dad who provides math tutoring for extra cash. At a wage of $30 per hour, he is willing to tutor 5 hours per week. At $45 per hour, he is willing to tutor 6 hours per week. Using the midpoint method, the elasticity of Asher’s labor supply between the ...
*September 21, 2009 by Jon*

**calculas maths**

.Two hikers begin at the same location and walk in perpendicular directions. Hiker A travels due north at a rate of 3 miles per hour; Hiker B travels due east at a rate of 5 miles per hour. At what rate is the distance between the two hikers changing 4 hours into the hike?
*November 3, 2012 by ashwani*

**Algebra 1**

A talk-radio station airs commercials during any time not used for discussions with callers. Commercial time on the station costs $750.00 per minute. Write a variable expression for the amount of money the station can make on commercials in one hour, based on the number of ...
*September 10, 2008 by Joy*

**physics**

A de-orbit burn, similar to that presented in the previous math problem, has been performed. During this de-orbit burn a pre-calculated ∆V (delta V, change in velocity) of 290 ft/s (or 88.4 m/s) will be used to decrease the Shuttle’s altitude from 205 miles to 60 miles ...
*January 20, 2012 by Levi B.*

**algebra**

In a given training week, a swimmer completes 1/4 mile on day one, 3/5 mile on day two, and 2/3 mile on day three. How many total miles does the athlete swim in the given week?
*July 31, 2014 by shenae*

**physics**

What is the velocity of a car going east for 50 miles in one hour? my answer. 50 miles/hour (east)?????
*September 19, 2011 by dave*

**Math**

Mr. Herman's family is traveling from Brownsville, Texas to their home in Lardeo, Texas. The distance from Brownsville to Laredo is 200 miles. And Mr Herman is driving at a speed of 50 miles per hour. Write an equation for the situation 50x=200
*November 11, 2014 by M*

**Math**

Mr. Herman's family is traveling from Brownsville, Texas to their home in Lardeo, Texas. The distance from Brownsville to Laredo is 200 miles. And Mr Herman is driving at a speed of 50 miles per hour. Write an equation for the situation 50x=200
*November 11, 2014 by M*

**Statistics**

9 trucks arrive per hour. It takes 6 minutes after reaching the loading station. Two alternatives to modify the situation. One is to change the trucks and add a helper at the loading station at a cost of 50,0000. This would change the arrival time of the trucks to 6 per hour ...
*September 29, 2011 by Sammy*

**algebra**

I need help with a word problem. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 70 miles per hour.Train A passes a station at 6:10 A.M. If train B passes the station at 6:22 A.M., ...
*March 18, 2008 by Casey*

**Capital Budgeting**

A company has revenues of 100 per unit sold. Current sales are 7500 units. Labor rates are 15 per hour. It takes 1.2 hours of labor to make each buggy. Material costs are 13.50 per unit. Figures are expected to remain the same permanently if the company continues to ...
*April 24, 2007 by Ash*

**Physics**

One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill. Determine the number of joules of energy in one ...
*February 29, 2012 by Candy*

**math question**

How do you do rates and unit prices and what is the process for doing this types of problems Do you have a specific problem? if all the horizontal lines are parallel , what is the value of x? for rates: 25 miles/5 hours = 5 miles/1 hour To get a unit rate, the denominator ...
*March 13, 2007 by patti help*

**Physics**

1. How is average speed related to instantaneous speed? What certain conditions must be met for the two variables to have the same or close value? 2. Cite one practical example on the use of the concepts of instantaneous speed, average speed in observing safety on the road.
*July 2, 2014 by Jade*

**Physics**

a truck is traveling in a straight line goes 60km in 83minutes. what is its average speed in km per hour?
*May 24, 2012 by Jen*

**MATH - probability #2**

A rescue squad spokesperson claims that the squad receives an average of 3 calls per hour. If at most 6 calls were received over a 5-hour period, would you suspect that the spokesperson was overestimating the average number of calls received per hour? Explain based on the ...
*October 14, 2006 by Lindz*

**math**

Two friends worked out on treadmills at the gym. •Alden walked 2 miles in 3/4 hour •Kira walked 1 3/4 miles in 30 minutes Who walked at a faster rate?
*January 1, 2014 by Please Help!!!*

**computers please help**

Hi i'm taking a intro to technology class and we have this assignment where we take different types of computers and find information. but i'm stuck. i need to find the speed of the motherboard for all of them. here's a list of them i have find for: 80386Dx, 80386SX, 80486DX, ...
*September 6, 2006 by Anonymous*

**algebra**

Company A charges $55 per day plus $0.35 per mile to rent a car. Company B charges $50 per day plus $0.40 per mile. Jack wants to rent a car for three days. How many miles should Jack be traveling so that Company A is less expensive than Company B?
*October 30, 2010 by franklin*

**ALGEBRA**

Company A charges $55 per day plus $0.35 per mile to rent a car. Company B charges $50 per day plus $0.40 per mile. Jack wants to rent a car for three days. How many miles should Jack be traveling so that Company A is less expensive than Company B?
*November 2, 2010 by CHANTELL*

**7th grade math Ms. Sue please**

13. A baseball bat and 8 baseballs cost $163.25. The bat costs $106.45. What is the cost c of one baseball? (1 point) 163.25 – 8c = 106.45; $33.71 8c + 106.45 = 163.25; $7.10 8c + 163.25 = 106.45; $7.10 8c – 106.45 = 163.25; $33.71 14. Mark weighs 74 pounds. Together, he and ...
*January 2, 2013 by Delilah*

**math-pre calc**

On a drive from your home to town, you wish to average 48 mph. The distance from your home to town is 106 miles. However, at 53 miles (half way), you find you have averaged only 36 mph. What average speed must you maintain in the remaining distance in order to have an overall ...
*September 24, 2014 by liz*

**calc**

Suppose that an accelerating car goes from 0 mph to 58.6 mph in five seconds. Its velocity is given in the following table, converted from miles per hour to feet per second, so that all time measurements are in seconds. (Note: 1 mph is 22/15 feet per sec = 12/15 ft/s.) Find ...
*April 17, 2015 by Anonymous*

**maths**

A factory produces two products A and B using raw materials p and q. It uses 3 units of p and 1 unit of q to produce one unit of A. It uses 1 unit of p and 2 units of q to produce one unit of B. The maximum daily supplies are 330 units of p and 220 units of q. If the profit ...
*July 9, 2013 by maths*

**AP physics**

Lucy is using a programmable treadmill. She inputs a top speed into the treadmill and presses "start." The treadmill accelerates from rest at 0.100 m/s2 until it reaches that speed, after which it stays at that constant speed. Later, when she is getting tired, she hits the "...
*October 1, 2012 by Philip*

**Physics**

:'( Please help me....? (7 points) 2. Contrast the metric units of distance, time, and speed. Describe the relationship between them. Answer: (11 points) 3. A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 ...
*October 22, 2012 by Gabriella*

**home work**

Suppose Lynette ride her bicycle due south at a rate of 16 miles per hour.If the wind blowing due west at 4 miles per hours ,what is the resultant velocity and direction of the bicycle?
*September 5, 2010 by Nancy L*

**Algebra**

A.Driving from El Paso to San Antonia on a bus ...560 miles traveling at avg speed of 60 miles per hr how do I make a graph with the time & distance. B. have to estimate distance bus tvls in 2 hrs...2 3/4 hrs...3.5 hrs...7.25 hrs.. C.need to describe in words a rule you can ...
*August 27, 2012 by Carolyn*

**math**

1. Which situation is not a function? a) the number of days d below freezing each month b) the total cost of an item that costs x dollars with 7% sales tax c) the number of miles driven at a constant speed of 45 miles per hour after x hours d) the total cost of n tickets that ...
*April 15, 2012 by Hayley*

**math**

if Tom is driving 64 kilometers/hour what is his speed in miles/hour?
*January 23, 2013 by Charles*

**Algebra Help**

A motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 miles at a certain rate; traffic then increased and for the next 6 miles he averaged 10 miles per hour less than his original speed; then traffic eased up and he traveled the ...
*October 25, 2013 by Jane*

**math help**

Tony is driving to Denver. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes), as shown in the figure below. Tony has 67 miles to his destination after 35 minutes of driving, and he has 55.6 miles to his ...
*March 20, 2010 by Anonymous*

**algebra**

On Monday, Voltaire drove to town at 60 miles per hour. On Tuesday, he drove to town at 40 miles per hour. If the totaling traveling time for both trips was 15 hours, how far was it to town? I know distance=(rate)(time).so I set it up like this...x=distance X/(60)(15) + x/(40...
*December 11, 2007 by Anthony*

**algebra**

While preparing for a kayak race, Marta practiced on a local river. On one trip she traveled 3.5 miles upstream in 50 minutes with the return trip taking 22.9 minutes. What was her speed in still water and the sped of the river current?
*February 8, 2012 by jon*

**math**

At 9:30 A.M. Andrew left Exeter for Portsmouth, cycling at 12 miles per hour At 10:00 A.M. Stacy left Portsmouth for Exeter, cycling at 16 miles pewr hour. The distance from Exeter to Portsmouth is 20 miles. At what time did they meet?
*November 23, 2007 by Julie*

**Math**

I skakeboard 5 blocks west abd 8 miles north to get to my friend's house. Each block is 1/8 in length. How far does it take me to travel in a round trip to my friend's house? A mile is 5,280 feet and 1/8 mile is 660 feet. I am thinking 8 x 660 =5,280 or 1 mile and 5 x660 =3300...
*January 8, 2009 by Joy*

**math **

what rule relating time and distance can help me calculate the traveled for 950 miles in bus at 60 miles per hour? d=60-t t=60d t=60+d d=60t
*January 30, 2011 by monserrate*

**chemistry**

a car covers a distance of 200 mile in 3 hours. How many kilometers will it travel in 25.0 minutes? first, convert the 200 miles to km. I get about 320 km. Then, convert the hours to min....I get about 180 min. so you know speed in km/min....divide the distance in km by the ...
*June 10, 2007 by Brooke*

**Management accounting**

Andre has a hair styling business with five workers that are paid $9.90 per hour,they work 40-hour per week and 50 weeks a year.Rent is $1,750 per month, hair shampooing is .40 per client, haircuts unit price is $12. Andre needs your help in finding the following information. ...
*May 25, 2007 by please help !!!*

**math**

Two cars leave at the same time from towns that are 460 miles apart and travel toward each other. They meet after 4 hours. Find the rate of each car if one car travels 13 miles per hour faster than the other.
*July 5, 2013 by Monica*

**Physics**

Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 7.0 mi/h, the time to go one mile decreases by 14 s. What was your original speed? Please explain me step by step
*January 12, 2015 by Big boss1*

**math**

A furniture store offers a free delivery services to all points within a 7-mile radius. If a customer lives 7 miles east and 1 mile south, how far do they live from the 7-mile boundary?
*January 18, 2012 by Anonymous*

**math**

an athlete. an run in 6 miles in 51 minutes. at this rate approximately how far could the runner go in 1.5 hours? A. 0.2 miles B. 8.5 miles C. 10.6 miles D. 12.75 miles
*March 4, 2013 by mary*

**Math 117**

The formular r= 2 cube root5L can beusedto approximate the speed r,in mile per hour,of a car that has skid marks of lenght L,in feet. How far will a car skid at 60 mph.
*February 12, 2012 by Joseph*

**math**

Two trains heading toward each other are 400 miles apart. One train travels 15 miles per hour faster than the other train. If they arrive at the same station in 5 hours, how fast is each train traveling?
*August 9, 2012 by stephanie*

**Math**

In a triathlon, a contestant swims 5 km, cycles 30 km, and then runs 20 km. In general, a contestant runs at an average speed of x, swimsat an average speed of x/5, and cycles at an average speed of 5x, where x is in kilometres per hour. a) Determine an expression for the ...
*January 6, 2015 by Alex*

**Math**

It took Mr.Bingea 8 minutes to run 4/5 of a mile. How many minutes did it take him to run the entire mile?
*February 11, 2015 by Marcos Ramirez*

**Algebra **

Maria's average speed for a 6 hour trip was 40kph. For the first 4 hours, she drove at an average rate of 50kph. What was her average speed for the last 2 hours?
*April 8, 2014 by Jane*

**math**

Rob drove to his friends house and back. IT took one hour less time to get there than it did to get back. The average speed on the trip there was 80km/h. the average speed on the way back was 60km/h. How many hours did the trip there take?
*August 13, 2013 by Anonymous*

**Alegebra**

The mortgage department of the company is selling two model homes that are located on the same block. The square footage, as well as the type of model, determines the cost of these homes. e) The second home has 200 square feet more than the square footage of the first home. ...
*June 26, 2010 by Darla*

**math**

The radius of each wheel of a car is 16 inches. At how many revolutions per minute should a spin balancer be set to balance the tires at a speed of 90 miles per hour? What is the setting for a wheel of radius 14 inches?
*March 30, 2010 by Alex*

**Linear Measurements**

Is one mile about 1609 meters? Is one meter about 39 inches? About how long is one kilometer in miles? And i have other questions but i shall try to figure them out!HELP PLZ!!! yes, yes, .6 miles
*March 11, 2007 by Holly*

**math**

Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $120 for 3 days and 300 miles, while Mary was charged $210 for 5 days and 600 miles. What does Best Rental charge per day and per mile?
*August 27, 2012 by maria *

**Math--I need help!**

I have these two questions on my assignment. Please help me. 80 mi. = _______ km. 9 cm. = _______ m. 9cm (1m/100cm)=??? 80miles (1 km/1600m) one mile = 1.6093 km so 80 times 1.6093 = what? one cm = 1/100 m or .01 m so 9 cm = 9 times .01 = what? 9 cm = 0.09 m. 80mi.= 128.72km. ...
*February 27, 2007 by Bethany*

**Algebra 2**

Bugs made the trip at 40 miles per hour during the first hiatus.joan made the same trip at 50 miles per hour during the second hiatus how long was the trip if it took buggs 2 hours longer than it took joan
*January 29, 2015 by Jesslyn*

**math**

if I am traveling by plane from Marshfield to Minnepolis (150 Statue miles) which equals 172.5 nautical miles. Our true course is set at 207 degrees. Theresa os a wind blowing from 90 degrees at 10 knots. Normally the plane travels at 100 knots per hour, but the wind will ...
*October 31, 2009 by Theresa*

**physical science**

While traveling south on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes due to traffic conditions. Calculate the acceleration. = -2.5-6.0-150-450 mi./hr2 NSWEn/a
*June 27, 2011 by pat*

**math**

tony walked 3.5 miles in 7/8 of an hour. at this rate, how many miles can tony walk in one hour?
*November 6, 2014 by darrell*

**physics**

On a drive from your home to town, you wish to average 52 mph. The distance from your home to town is 106 miles. However, at 53 miles (half way), you ﬁnd you have averaged only 39 mph. What average speed must you maintain in the remaining distance in order to have an ...
*August 9, 2012 by amanda and leah*

**Math**

Jessica can jog to work in of an hour. When she rides her bike, it takes her of an hour. If she rides miles per hour faster than she jogs, how far away is her work?
*April 27, 2011 by Anonymous*

**Math**

Jessica can jog to work in 4/5 of an hour. When she rides her bike, it takes her 3/10 of an hour. If she rides 10 miles per hour faster than she jogs, how far away is her work?
*October 9, 2011 by Lisana*

**math**

the diamond taxi company charges an initial fee of $3.00 plus $2.00 per mile for each ride. a) using the table show the cost (C) of taking a taxi 0-5 miles number of miles cost(c) 1 ? 2 ? 3 ? 4 ? 5 ? can you show me to do the number of miles for 1 and then i'll try to do 2-5
*March 28, 2013 by Anonymous*

**math**

the diamond taxi company charges an initial fee of $3.00 plus $2.00 per mile for each ride. a) using the table show the cost (C) of taking a taxi 0-5 miles number of miles cost(c) 1 ? 2 ? 3 ? 4 ? 5 ? can you show me to do the number of miles for 1 and then i'll try to do 2-5
*March 28, 2013 by Anonymous*

**algebra**

Nicole can jog to work in of an hour. When she rides her bike, it takes her of an hour. If she rides miles per hour faster than she jogs, how far away is her work? NEED HELP FAST
*January 21, 2011 by molly*

**math **

oliver can jog about 3 times as fast as he can walk. If his average walking rate is one mile in 20 minutes, about how far could he jog in 2 hours?
*February 20, 2013 by lina *

**algebra**

A car travels at a constant rate of 45 mph on a highway iffinitely (assume it never has to stop for gas) How far has the car traveled after x minutes? 45 miles/hr * (1/60 hr/minute) * x minutes = 3/4 x miles (if x is in minutes)
*June 26, 2007 by Anonymous*

**mathh (unit rate)**

Find the unit rate. $121.50 for working 18 hours wages = hourly rate x time 121.50 = hourly rate x 18 hours. Solve for hourly rate. how do i solve for hourly wages = hourly rate x time 121.50 = hourly rate x 18 hours. You want to get hourly rate by itself. So divide both sides...
*August 22, 2006 by Rebecca*

**statistics**

The average amount of time people spend on facebook each day is 71 minutes, with a standard deviation of 4.7 minutes. Are you more likely to select a random person that spends less than 68 minutes per day, or a group of 35 people that spend on average less than 65 minutes per ...
*November 17, 2012 by ME*

**Pre Calculus **

A motorboat travels 48 miles down a river in the same time it takes to travel 32 miles up the river. If the rate of the current is 4 miles per hour that is the rate of the boat still water?
*September 15, 2014 by Jody*

**College algebra**

A person is driving a car on a straight road. The graph shows the distance in y miles that the individual is from home after x hours. the graph has the following points (1, 40) and (3, 90) Find the slope intercept of the line y = ____x + ______ How fast is the car traveling? ...
*December 6, 2010 by Lee*

**Algebra**

I am so lost can someone please help me Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 100 miles per hour. Train A passes a station at 11:15am. If train B passes the same station at ...
*July 9, 2008 by Janice*

**Algebra **

I don't understand can someone help me on how to figure this out please !! Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour an train B is traveling at 100 miles per hour. Train A passes a station at 2:25 pm. If ...
*May 26, 2010 by Jim B*

**Math(CHECK ANSWERS)**

PLEASE CHECK MY MATH ANSWERS PLEASE AND LABEL THEM LIKE 1.WRONG AND STUFF THANKS ! 1.There are 5 red crayons, 6 yellow crayons, and 11 blue crayons in a shoebox. What is the ratio of the total number of crayons to the number of yellow crayons? A.6:22 B.6:16 C.22:6(I PICK THIS...
*February 10, 2014 by Matt*

**physics**

The current indoor world record time in the 200-m race is 19.92 s, held by Frank Fredericks of Namibia (1996), while the indoor record time in the one-mile race is 228.5 s, held by Hicham El Guerrouj of Morroco (1997). (a) Find the mean speed in meters per second corresponding...
*March 11, 2012 by Darcie*

**statistics**

A study of 36 marathon runners showed that they could run at an average rate of 7.8 miles per hour. The sample standard deviation is 0.6. Find a point estimate of the population mean. Find the 90% confidence interval forthe mean of all runners. Based on the results, what ...
*April 24, 2013 by Anonymous*

**Math**

[Key: /= a fraction bar] Olga ran 5 kilometers in 37 minutes. Which could Olga use to determine m, the number of minutes she would take to run 25 kilometers at this rate? A. 37/5 = 25/m B. 5/m = 25/37 C. 37/5 = m/25 D. 5/m = 37/25
*January 12, 2015 by Mo*