Tuesday

May 3, 2016
Number of results: 142,325

**Math**

If a person is charged 1.5 cents per mile,how much will he have to pay after he drives one thousand miles?
*February 18, 2016 by Bruce*

**prealgebra**

change 40 miles per hour to miles per second
*March 5, 2013 by garrett*

**Problem solving **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**Problem solving **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**math**

Aryan has to travel certain distance from his home at a speed of 5 kilometre hours on his way back to home the speed decreases to 3 kilo metre per hour find his average speed.
*December 21, 2015 by Balram *

**algebra**

A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for
*February 24, 2013 by kisha*

**math**

As part of a 3-day workout plan to prepare for a triathlon, an athlete ran 7 and one eighth718 miles Monday, 11 and one third1113 miles Tuesday, and 14 and one sixth1416 miles Wednesday. How many miles did the athlete run in the...
*October 1, 2015 by mo*

**math**

0.3 divided by 0.06 simplify the expression 2: 4+3 time 3-5 simplify the expression 3: a jogger on a treadmill is jogging at 5 miles per hour. which of the following is the time it will take him to jog 1 mile
*January 24, 2013 by sadrac*

**Science**

If a truck that has a back ramp on it is going 70 miles an hour down the road, and you are traveling 75 behind it, you would soon reach it. If you were to try to get up onto its ramp, would you: A: Since you are going 75 miles an hour and it is going 70, be able to get up onto...
*March 27, 2008 by Spencer*

**Chemistry**

(Help) (Problem) A radio wace travels 186,000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile= 1.61km) distance= timeinseconds/velocity change the given velocity in miles/hr to m/sec 186kmi/sec *1.6km/mi
*January 23, 2007 by Bryan*

**math**

The record for the fastest speed on a bicycle is 133 kilometers per hour. How long would it take a person traveling at this speed to travel 365.75 kilometers? hours and minutes
*January 7, 2015 by gabrielle*

**physics**

ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running at a speed of 8 km ...
*August 14, 2011 by Anonymous*

**physics**

ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running at a speed of 8 km ...
*August 14, 2011 by Anonymous*

**physics**

ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running at a speed of 8 km ...
*August 14, 2011 by Anonymous*

**algebra**

Abigail roller skates with a constant speed of 8 miles per hour. How far can she travel in 1 1/2 hours?
*December 21, 2014 by brea*

**Conrady**

A rental car agency charges $240.00 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $435.00?
*November 8, 2015 by Helmi*

**math**

a round trip car ride took 12 hours. the first half of the trip took 7 hours at a rate of 45 miles per hour. what was the average rate of speed on the return trip?
*May 31, 2010 by Sara!*

**MATH!**

a round trip car ride took 12 hours. the first half of the trip took 7 hours at a rate of 45 miles per hour. what was the average rate of speed on the return trip?
*May 31, 2010 by Sara!*

**Math: Algebra II**

You start 50 miles east of Pittsburgh and drive east at a constant speed of 65 miles per hour. (Assume that the road is straight and permits you to do this.) Find a formula for d, your distance from Pittsburgh, as a function of t, the number of hours of travel.
*October 5, 2013 by Lucy Ripply*

**Math: Algebra II**

You start 50 miles east of Pittsburgh and drive east at a constant speed of 65 miles per hour. (Assume that the road is straight and permits you to do this.) Find a formula for d, your distance from Pittsburgh, as a function of t, the number of hours of travel.
*October 5, 2013 by Lucy Ripply*

**algabra**

I take a trip in my car. I want to go 960 miles in one day. The time t, in hours, that it takes to travel 960 miles is given. I will be going 70 or 75 miles an hour so the speed is r. How long will it take me to get to where I am going?
*February 1, 2011 by kathy*

**algebra**

Can someone PLEASE help me with this problem?? In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula N(t)3t3 23t2 8t. a) Rewrite...
*July 31, 2010 by samuala*

**Math**

How would you solve for these word problems in one variable applications? 1.The maximum speed is allowed on main street is 25 miles per hour. 2. applicants must have at least 5 years of experience. 3 Ten less than a number,x, is greater than 32.
*September 25, 2013 by Hayley*

**math**

a round trip car ride took 12 hours. the first half of the trip took 7 hours at a rate of 4 miles per hour. what was the average rate of speed on the return trip? how do i write this as an equation?
*May 31, 2010 by Sara!*

**algebra**

the time it takes you to get to campus varies inveresly as your driving rate. Driving at a rate of 40 miles per hour, it takes 1.5 hours. How ong would the trip take you driving at a rate of 60 miles per hour?
*November 1, 2012 by Maria*

**Math**

The El Paso Middle School girls' basketball team is going from El Paso to San Antonio for the Texas state championship game. The trip will be 560 miles. Their bus travels at an average of 60 miles per hour. Estimate the distance the bus travels in 2 hours.
*October 28, 2012 by Jason*

**stats**

Between 11 P.M. and midnight on Thursday night, Mystery Pizza gets an average of 5.7 telephone orders per hour. a) Find the probability that at least 32 minutes will elapse before the next telephone order. b) Find the probability that less than 17 minutes will elapse. c) Find ...
*October 31, 2010 by anonymous*

**chemistry**

Suppose you run a total of 4.35 miles in 58.75 minutes. If you want to determine your average running speed in units of km/hr, how many significant digits will your final answer have?
*March 4, 2012 by Anonymous*

**statistics**

n order to estimate the difference between the average Miles per Gallon of two different models of cars , samples are taken and the following information is collected. Model A Model B Sample Size 13 14 Sample Mean 35 32 Sample Variance 13 7 a) Find a 95% confidence interval ...
*September 30, 2014 by Anonymous*

**physical science**

Brad rides his bike 20 km. He covers the distance in 45 minutes (0.75 hours). What is his speed in kilometers per hour? A.44 km/hr B.15 km/hr C.9.0 km/hr D.27 km/hr
*December 18, 2011 by kelsey*

**Math **

A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a car from the first ...
*February 17, 2014 by Taylor*

**Math**

Any began a running program she ran less than 5/6 of a mile what part if a mile could any have run
*March 19, 2014 by Lisa*

**calculus**

2. A spin balancer rotates the wheel of the car at 480 revolutions per min. if the diameter of the wheel is 26 in what road speed is being tested in the miles per hour? Round to the nearest tenth
*April 30, 2012 by Nolan *

**MATH**

THE AVERAGE WIND SPEED INCREASED 19 MILES/H FROM 8 AM TO 12 NOON. THE AVERAGE WIND SPEED DECREASED 5 MI MI/H FROM 12 NOON TO 4 PM. AT 4 PM, THE AVERAGE WIND SPEED WAS AT LEAST 32 MI/H. WHAT IS THE MINIMUM VALUE OF THE AVERAGE WIND SPEED AT 8 AM? NEED TO SOLVE AN INEQUALITY ...
*November 30, 2011 by Justin*

**statistics**

A construction zone on Kings Road has a posted speed of 45 kilometers per hour. The speeds of vehicle passing through this construction zone are normally distributed with a mean of 46 kilometers per hour and a standard deviation of 4 kilometers per hour. Find the percentage ...
*May 11, 2012 by Nesa*

**Math**

Need help with setting up an equation for this problem: A boat is sailing due east parellel to the shoreline at a speed of 10 miles per hour.At a given time the bearing to the lighthouse is S 70 degrees E, and 15 minutes later the bearing is S 63 degrees E. The lighthouse is ...
*April 6, 2008 by Sharon*

**Algebra**

A runner starts at the beginning of a cross country course running at a constant rate of 6 miles per hour. Five minutes later a second runner begins at the same point,
*September 29, 2015 by Rbg*

**math**

A car travels at an average speed of 36 kilometers per hour. Write and solve an equation to predict how many hours if will take travel 432kph. It if continues of this speed.
*June 21, 2011 by jewel padilla*

**?????**

How do you convert miles per minute into minutes per miles?? Help me please! invert. 30miles/min convets to 1min/30miles
*February 9, 2007 by kayla*

**Math**

Leonard ran 4 miles more than Sheldon ran. The sum of their distances is 26 miles. How far did Sheldon run? The domain a. Define your variable. b. Write algebraic expressions for the distances each person ran. c. Write an equation that can help you solve the problem. d. Solve ...
*December 8, 2015 by James*

**Physics**

A 180 pound body is dropped from a helicopter 5 miles (26400 ft.) up - - what maximum speed would the body attain, in miles per hour, before hitting the ground? Disregard gravity, air density, etc. factors, a very rough approximation is all that is needed. Thanks.
*November 20, 2015 by Bill*

**sCiEnCe**

Can you define speed, motion, constant speed and average speed? And can you get me there formulas? Ex-Distance over speed THANKS MUCH! <333 Can you define speed, motion, constant speed and average speed? And can you get me there formulas? Ex-Distance over speed THANKS MUCH...
*March 4, 2007 by Jonas!*

**s**

According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
*June 3, 2013 by pamela *

**math**

Two swimmers competed in a 20 mile race. Person 1 swam at a rate of 4 miles every 25 minutes. Person 2 swam at a rate of 3 miles every 20 minutes, Who won and what was each swimmers time?
*October 27, 2012 by lynn*

**Math**

Suppose that a car rental agency gave you the following choices. Option A $30 per day plus 40¢ per mile Option B flat $50 per day (a) Write equations for cost per day c for options A and B. (Use m for distance in miles.) c = $ (option A) c = $ (option B) (b)How would i graph ...
*October 23, 2012 by Ms. Jackie*

**7th Grade Math**

Carlos and maria drove a total of 258 miles in 5 hours. carlos drove the first part of the trip and averaged 50 miles per hour. maria drove the remainder of the trip and averaged 55 miles per hour. for approximately how many hours did maria drive?
*January 4, 2012 by Rebecca*

**math question**

Problem A businessman drives from Washington, D.C. to Boston, a distance of 442 miles, and then makes the return trip. On the way to Boston, he drives 65 miles per hour, taking a 1-hour rest stop during the drive. After finishing his business in Boston, he makes the return ...
*October 6, 2008 by sherri*

**Science**

Really confused on this question. A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The biologist wished to compare the speed of the bacteria with other animals, but the speeds of other animals are ...
*September 27, 2013 by Gianna*

**reading**

According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
*October 19, 2012 by Anonymous*

**Math**

Amy ran twice as many miles on Tuesday as she ran on Monday. Amy ran 2 mi on Monday. What is the total number of miles that Amy ran on Monday and Tuesday
*February 26, 2016 by Dasha*

**math**

A race car driver starts along a 50-mile race course traveling at an average speed of 90 mph. Fifteen minutes later a second driver starts along the same course at an average speed of 120 mph. Will the second car overtake the first car before the drivers reach the end of the ...
*July 28, 2011 by Anonymous*

**Reading skills**

According to science, the fastest speed possible for anything is the speed of light. The speed of light is about 186,000 miles per second. That means that in one minute, light travels 11,160,000 miles. The star nearest Earth is the Sun. It's about 93,000,000 miles from Earth. ...
*March 6, 2014 by Tazkiyah*

**Algebra I**

Use one unit multiplier to write the expression needed to convert 42 meters to centimeters? It also said;Do not carry out the actual multiplication. So do I just write my answer 42m over 1 x 100cm over 1m? Thank You for your help.
*October 29, 2014 by Nancy*

**math**

a plane flew for 4hrs, 30 miles per hour and an adverge speed of 515 mph how far did it fly?
*September 17, 2014 by lily*

**Word Problems**

If your car gets 18 miles per gallon of gasoline, how many pints of gas will you need to take a 698- mile trip? I no that 1pt = 480ml and 1g= 3840 ml so do I x 18 miles per gallon by the amount of pints in a gallon?
*July 22, 2011 by Rina*

**Math**

Amanda will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $75 and costs an additional $0.40 per mile driven. The second plan has no initial fee but costs $0.60 per mile driven. How many miles would Amanda need to drive for ...
*February 10, 2011 by Ilene*

**algebra 2**

Joe will rent a car for the weekend. He can choose one of two plans. The first plan has no initial fee but costs $0.90 per mile driven. The second plan has an initial fee of $65 and costs an additional $0.40 per mile driven. How many miles would Joe need to drive for the two ...
*October 6, 2015 by John*

**math**

Kevin will rent a car for the weekend. He can choose one of two plans. The first plan has no initial fee but costs $0.90 per mile driven. The second plan has an initial fee of $50 and costs an additional $0.70 per mile driven. How many miles would Kevin need to drive for the ...
*March 28, 2016 by marisol*

**Calculus**

Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that M'(x) = 3,600x−2 − 1/ (3,600x−1 + x)2. Estimate M'(10), M'(60), and M'(90). (Round your answers to seven decimal places.) M'(10) = mpg/...
*September 17, 2013 by Justin*

**Calculus**

Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that M'(x) = 3,600x−2 − 1/ (3,600x−1 + x)2. Estimate M'(10), M'(60), and M'(90). (Round your answers to seven decimal places.) M'(10) = mpg/...
*September 17, 2013 by Justin*

**3rd garde math**

seth bikes 3 miles in 10 minutes and 30 miles in 100 minutes. How many miles does seth bike in 1000 minutes
*March 4, 2015 by Anonymous*

**Algebra**

A car rental company charges $24 per day plus $0.75 per mile driven. a) Let C = total cost; D = number of days and M = number of miles b) Write the equation for the total cost in terms of C, D and M c) Use the equation to determine the total cost for a customer who rented the ...
*December 4, 2012 by Randy*

**algerbra**

A taxi company charges $2.40 for the first mile and $1.20 per mile for each additional mile. How much would the bill be for a 15 mile trip?
*March 16, 2014 by mark ingram*

**saxon 65**

how many minutes is one third of an hour An hour is 60 minutes. What is one third of 60 minutes? I hope this helps. Thanks for asking. 20
*August 28, 2006 by olivia*

**pyramids**

a car travels 35 km in the first 20 minutes, 43 km in the second 30 minutes and 19 km in the last 18 minutes of a trip. what is the average speed in Km/mn?
*January 8, 2011 by Eloise*

**math**

last week Ann ran 27 miles less than Jen. Ann ran 19 miles. How many miles did Jen run?
*March 25, 2012 by rob*

**math**

last week bre ran 28 miles more than heather. bre ran 35 miles. how many miles did heather run?
*March 25, 2012 by rob*

**Math**

How long will it take to go three tenth of an mile going 80 miles an hour
*February 23, 2016 by Teresa*

**Science**

Two Cars A car leaves San Francisco, traveling east at 65 miles per hour. The driver takes a bathroom break of 15 min every 3 hours. Another car departs New York City at the same time, traveling at 60 miles per hour. This driver takes a bathroom break of only 10 minutes every ...
*June 21, 2007 by Daniell*

**math**

A rental truck costs $50 plus $0.50 (67) per mile. (a) Write an equation that gives the cost C of driving the truck x miles. (b) Use the intersection-of-graphs method to determine the number of miles that the truck is driven if the rental cost is $80. (c) Solve part (b) ...
*May 22, 2013 by Anonymous*

**math**

A rental truck costs $50 plus $0.50 (67) per mile. (a) Write an equation that gives the cost C of driving the truck x miles. (b) Use the intersection-of-graphs method to determine the number of miles that the truck is driven if the rental cost is $80. (c) Solve part (b) ...
*May 22, 2013 by Anonymous*

**Mathematics**

Two cars drive from town A to town B at constant speeds. The blue car travels 25 miles per hour and the red car travels 60 miles per hour. The blue car leaves at 9:30 am and the red car leaves at noon. The distance between the two towns is 150 miles. Who will get there first? ...
*May 29, 2015 by Stephanie*

**math**

A boy travels on his bicycle at the rate of 6 miles per hour and his sister on hers at the rate of 5 miles per hour. They start at the same time and place and travel over the same road in the same direction. After traveling for 3 hours, the boy turns back. How far from the ...
*July 17, 2013 by vincent*

**math**

If you're currently making $6.75 per hour and you're offered a new job that pays $7.47 per hour, how much more would you make per hour at the new job? A.$.28 B.$.72 C.$1.28 D.$1.72
*July 8, 2015 by tina*

**6th grade math**

a dog can run as fast as 39.35 miles per hour.without calculating,would about 12,14,or 16 be a reasonable answer for the number of miles a dog could run at this rate in 0.4 hour?Explain your reasoning.
*September 18, 2011 by Kate*

**math!!!**

can you please check my work 19mm=? m ?=.19??? .017km=? cm ?=1700? 61500cm/min =? km/h ?=.615? thank youuu! .019 (missed a decimal space) 1700 is correct The last one is a little trickier. First, figure out how many km per minute you are moving: .615 km/minute Since that is ...
*April 21, 2007 by George*

**help**

In your socks assignment, create 5 scenarios, in which your hourly pay rate and the socks per hour change: the current "child labor" scenario ($0.25 per hour, 4 socks per hour) "GM employees " ($63,6) "Weedheads" ($5,1) "McDonalds employees" ($8,8) "Philippinos" ($3,30) We ...
*July 23, 2011 by cass*

**math**

Phil is making a 40-kilometer canoe trip. If he travels at 30 kilometers per hour for the first 10 kilometers, and then at 15 kilometers per hour for the rest of the trip, how many minutes more will it take him then if he travels the entire trip at 20 kilometers per hour?
*January 12, 2013 by Larry*

**math**

Phil is making a 40-kilometer canoe trip. If he travels at 30 kilometers per hour for the first 10 kilometers, and then at 15 kilometers per hour for the rest of the trip, how many minutes more will it take him then if he travels the entire trip at 20 kilometers per hour?
*January 12, 2013 by Larry*

**math**

Phil is making a 40-kilometer canoe trip. If he travels at 30 kilometers per hour for the first 10 kilometers, and then at 15 kilometers per hour for the rest of the trip, how many minutes more will it take him then if he travels the entire trip at 20 kilometers per hour?
*January 12, 2013 by Larry*

**math**

Phil is making a 40-kilometer canoe trip. If he travels at 30 kilometers per hour for the first 10 kilometers, and then at 15 kilometers per hour for the rest of the trip, how many minutes more will it take him then if he travels the entire trip at 20 kilometers per hour?
*January 13, 2013 by Larry*

**Math Word Problem**

A metra commuter train leaves Union Station in Chicago at 12 noon. Twp hours later an Amtrak train leaves on the same track, traveling at an average speed that is 50 miles per hour faster than the Metra train. At 3PM the Amtrak train is 10 miles behind the commuter train. How ...
*September 16, 2010 by amy*

**math**

Tom and kate live 15 miles apart they decide to jog to meet eachother kate left her house and jogged at a rate of 2.5 miles per hour tom left his house at the same time and jogged at a rate of 3.5 miles per hour how long does it take for the two friends to meet? how far will ...
*January 30, 2012 by Anonymous*

**math**

if it took jeff 14 minutes to drive 10 1/2 mile how long will it take him to travel 23 miles?
*April 17, 2013 by jack*

**algebra**

. If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle can travel 32 miles ...
*February 17, 2011 by Carly*

**Conversion again (3 question finish-up)**

Hello, Ms.Sue helped me with the last question, but I did not get it. I have 3 questions and I would like to solve it step by step to the answer. Can you help me? 1. ) .85 meters/minute = _____ kilometers/second 2.) 80 ft/s = ____ mile/hour 3.) 12 meters/hour = _____ ...
*October 10, 2014 by Help please*

**statistics**

It appears to people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity varied according to the N(373,67) distribution. Minutes...
*September 12, 2011 by Darcy*

**math**

The winner in a recent Los Angeles Marathon ran the 26-mile race in 2.23 hours. How many yards per minute did he run?
*September 28, 2012 by michael*

**mathmatics**

how much is one acre i cant find out and i want an exact answer because all the things online say between this number and that number and it bothers me so please tell me what the answer is so i can go back to my school and feel confedent bye bye and yes i am a tomboy Type this...
*November 27, 2006 by Haley*

**Math**

Math Question: winning time of a marathon is 1 hour, 24 minutes and 11 seconds... How do I find the average speed?
*February 5, 2013 by Emmanuel*

**Science 6 th grade**

Can you plz check this :0 True/False 1. Kilometers per hour describes the speed of an object. (1 point) true false * Multiple Choice 2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? (1 point) an airplane flying...
*May 4, 2015 by Stephanie*

**algebra please help**

If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle can travel 32 miles per...
*February 17, 2011 by Carly*

**Please Revise(short paper)**

Physical Education has been an extremely tough class, but I it has done me some justice. Despite how tough and painful it was, it all payed off in the end. Before this class started, running a mile seemed like the toughest task anyone could ever ask. Through extremely tough ...
*December 11, 2011 by Bryce*

**Algebra!Problem Solving!PLZ HELP!**

Sunset rents an SUV at $21.95 plus $0.23 per mile. Sunrise rents the same vehicle for $24.95 plus $0.19 per mile. For what mileage is the cost the same? This means that one cost equals the other. Let X stand for the number of miles. Thus the basic cost plus the mileage costs ...
*November 5, 2006 by Matthew*

**Math**

Which is performing more efficiently? A car getting 12 km per liter of gas or one getting 25 miles per hour?
*March 19, 2008 by Mike*

**math**

A ship left at 9:00 am going 10 miles per hour on a course. Another ship left at noon on the same course going 15 miles per hour. At what time did the second ship overtake the first ship?
*May 19, 2011 by Robyn*

**Math**

8. Sylvia is training for a triathlon. she cycles 6.25 km in 25 min. a) What is her average speed, in kilometres per hour? b) Solve a proportion to determine how long she would take to cycle 40 km. Us the speed in part A)
*May 6, 2014 by Annadona*

**Pre-Calc/Trigonometry**

You place a cup of 205oF coffee on a table in a room that is 72oF, and 10 minutes later, it is 195oF. Approximately how long will it be before the coffee is 180oF? Use Newton's law of cooling: 1 hour 25 minutes 15 minutes 45 minutes
*December 30, 2014 by Anonymous*

**physics**

An automobile travels at the rate of 25 m/s for 5 minutes, then at 30 m/s for 10 minutes, and finally at 10 m/s for 2 minutes. Find a. the total distance covered in meters and the average speed in m/s
*January 12, 2012 by Grail*

**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 4.5 mi/h, the time to go one mile decreases by 12 s. What was your original speed?
*September 29, 2011 by Pili*