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May 22, 2015

Search: Traveling at r kilometers per hour for t hours, a driver will travel (r)(t) kilometers. How far will Danny travel in 4 hours at a speed of 99 kilometers per hour?

Number of results: 52,648

Alegebra
If a kayaker's speed while traveling upstream is 7 miles per hour and downstream is 4 miles per hour. What is the kayaker's speed in still water? What is the speed of the current?
February 6, 2013 by Nick

arithmetic
How do I get hours to perform task I have a rate of 28 per hour and 6245 transactions how many hours to complete
October 23, 2008 by Bev

Algebra
CEO Salaries In 2002, hourly wages for the top three CEOs (chief executive officers) of U.S. corporations were calculated based on their working 14 hours per day for 365 days. Together the three CEOs made $44,000 per hour. The top CEO earned $2,000 more per hour than the ...
November 8, 2011 by genie

Physics
If a car travel at an average speed of 80 km per hr for 20 min, and then slowed down to an average speed of 50 km per hr over the next 15 min. How far would it travel in total?
June 21, 2011 by Jennifer

mat/116 week one
a driver who drives at a speed of r mph for t hr will travel a distance d mi given by d = rt miles. How far will a driver travel at a speed of 58 mph for 5 hr?
February 12, 2010 by Helen

math
Sue is in an airplane which travels at a constant 300 kilometers per hour. The angle of climb of the airplane is 30 ∘. How long (in seconds) would it take from takeoff, before the airplane reaches 3000 meters, when Sue can access Wifi and work on the rest of the weekly ...
July 25, 2013 by ayan

math 115
What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
September 30, 2009 by amber

math 115
What units in the metric system would you use to measure each of the following quantities?= The United States emitted 19.5 million t of nitrogen oxides (NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many kilograms of NO were emitted to the ...
September 30, 2009 by amber

math
it took 3 hours for patrol boat to travel 48km upstream and 2 hours to travel downstream. What is the current and boat speed.
October 2, 2010 by alex

algebra
A boat can travel 114 miles upstream in the same time that it can travel 186 miles downstream. If the speed of the current is 6 miles per hour, find the speed of the boat without a current.
August 17, 2011 by carl

math
Xavier worked 10 hours on Monday and 15 hours on Wednesday. His total pay was $280.00. What is his rate per hour?
June 15, 2009 by bill

math
the el paso middle school girls baxketball 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 speed of 60 miles per hour. estimate the distance the bus travels in 2 hours 2and 3 4...2 and a...
October 2, 2006 by chemiii

math
A crew needs to pick up litter along one side of a section of highway that is 49.5 kilometers long. How many kilometers must the crew clean each day in order to finish the job in 5.5 days? A 0.11km B 0.9 km C 9.0 km D 11.2 km
December 6, 2012 by stephanie

Algebra
Two cars start at the same point at Alexandria, verginia, and travel Ans 50mph, 55mph 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.
March 28, 2013 by Lora

math
Consumers pay for electricity by the kilowatt-hour (the amount of electricity used by a 1,000-watt appliance in one hour). If electricity costs 10cents per kilowatt-hour, what is the cost of running a 100-watt lamp for 1. 1 hour? 2. 24 hours? 3. 1 year?
December 7, 2010 by Mike

Calculus
A car passes by a certain point at time t = 0 hours heading east at 40 miles per hour. At t = 1 hour another car passes by the same point heading north at 50 miles per hour. What is the functiuonthat equals the distance between the two cars?
June 8, 2011 by Liz

Science
The rest stops the driver made are included in the calculations because that is hoe the problem is defined. However, suppose the bus driver's manager wants to know the average speed at which the driver was actually driving the bus that day while he was on the road. In this ...
February 18, 2012 by Angelica

algebra
joe is planning a 5 hour canoe trip. he can paddle 4 miles per hour in still water and the current is 3 miles per hour. how far downstream can he go?
December 15, 2014 by jp

Math
a car travelled 60 km in 25 mins. its speed is equilent to _____km/hour. In 2 1/3 hours this car travelled______km if it maintained at this speed. when you change mins to hour to you divide 60 into 25 to get the km/hour??? im confused. 60km/25 min. = 12km/5min 5 min. is 1/12 ...
April 13, 2007 by Anonymous

Math!
Suppose you are driving to visit a friend in another state. You are driving 55 miles per hour. You must drive 440 miles total. If you have already driven 275 miles, how long will it take you to reach your destination? Use h to represent the number of hours it will take to ...
September 9, 2014 by Gwen

third grade math
reed's bookstore is open 9 hours each day. it opens at 9:30a.m. when does it close? i know the answer but i don't know how to show my work. please help. Two ways to do it. 12:00 noon - 9:30 = 2:30 hours in the morning. That leaves 6:00 hours - 2:30 minutes for the afternoon ...
April 24, 2007 by zeke

Algebra
The bus stations in Trawlwy and Fenton are 220 miles apart. A bus left Trawley for Fenton at 9:00am. Traveling at 40 miles per hour. One hour later, an express bus left Fenton for Trawley traveling along the same road at 50 miles per hour. At what time did the buses pass each...
May 6, 2012 by Miranda

math
Over the river and through the woods to grandpa's house the smith grandchildren go. They drive 120miles to reach grandpa's house and the same distance back home. 1) It took 1.2hours to get halfway there. What is their average speed, in miles per hour, for the first 1.2hours of...
December 1, 2013 by B8

Pre-Calculus-Trig
A boat travels for 8 kilometers in a straight line from the dock. It is then sighted from a lighthouse which is 6.5 kilometers from the dock. The angle determined by the dock, the lighthouse(vertex), and the boat is 25 degrees. How far is the boat from the lighthouse?
January 30, 2011 by Chloe Mack

Math
4. Which explains why the sequence 81, 3, 1/9,... is arithmetic or geometric? A)The sequence is arithmetic because it decreases by a factor of 1/27 B)The sequence is geometric because it decreases by a factor of 1/27 C)The sequence is arithmetic because it decreases by a ...
March 31, 2015 by Jeff the Killer Hates Math

4th grade math
Aaron's family is driving 80 miles to the mountains. They have already traveled 30 miles. They are traveling at a speed of 50 miles per hour. How many hours will it take them to complete the trip?
March 7, 2011 by julie

Math
If the stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. How do I determine how many people participated in the walk and how many of the walkers traveled more than 14 kilometers? I don't want the answer. I just want to know how to work it out.
October 9, 2014 by Denise

College Algebra
A truck driver traveled at an average speed of 55 miles per hour on a 200 mile trip to pick up a load of freight. On the return trip(with the truck fully loaded), the average speed was 40miles per hour. What was the average speed for the round trip?
November 19, 2007 by Courtney

5th grade
one light year is about 9 trillion kilometers . arctus is a star that is 37 light years from earth.if you are 11 years old now,how old will you be when light that is leaving arcturus today reaches earth. how far in kilometers willit have traveled .sow your work.
April 25, 2010 by cheyenne

Algebra
Ramiro earns $20 per hour during the week and $30 per hour for overtime on the weekends. One week Ramiro earned a total of $650. He worked 5 times as many hours during the week as he did on the weekend. Write and solve a system of equations to determine how many hours of ...
December 10, 2013 by Brianna

math
The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in radians, that a ...
November 6, 2009 by ariza

math
The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in radians, that a ...
November 6, 2009 by -

geometry
The diameter of Earth is 12,742 kilometers; the diameter of the moon is 3476 kilometers. a. If you flew around Earth by following the equator at a height of 10 kilometers, how many trips around the Moon could you take in the same amount of time, at the same height from the ...
March 4, 2012 by kim

math
if a car passes mile marker 2 in 4 hours and a mile marker 125 in 6 hours, how many miles per hour is the car traveling?
February 2, 2015 by betty

Statistics
a city needs to perform some road maintenance and will rent excavator m achines from a company. Each excavator will work at least 1 hour, but no more than 4 hours at a time. It is known that the working time of each excavator is evenly distributed. a) What is the distribution ...
November 2, 2014 by Sarah

math
A car is traveling at 120 km/h. How far does it travel in 6 1/3 hours?
February 12, 2012 by Tori

Math
Stephanie got a travel pack of 4 aspirin each 500 ml. How many total grams are in the pack 0.5? A box of specialty baking flour holds 2 kg. How many angel food cakes can be made with a recipe that calls for 100 grams of flour? 0.1? Joey walks 4 kilometers to soccer practice. ...
November 6, 2012 by Jerald

math
Bobby has been driving at a constant speed for the last 30 minutes. If Bobby is traveling at a speed of 70 miles per hour, which equation best represents the relationship between time in hours(c) and distance in miles (d). A. d = 70t B. t = 70d C. d = t + 70 D. t = d + 70 ...
April 9, 2015 by ben

Math-Algebra
A car takes 3 hours to travel a distance of 240 km with a speed of 80 km/h while a motorbike can cover the same distance in 4 hours if its travels at a speed of 60 km/h. Explain why the speed and the time it takes for the vehicles to travel a certain distance exhibit an ...
November 13, 2013 by McKenna Louise

Physics
On July 19, 1969, Apollo II's orbit around the moon was adjusted to an average height of 188 kilometers above the moon's surface. The radius of the moon is 1810 kilometers, and the mass of the moon is 7.3 x 1022 kilograms. a. At what speed did it orbit the moon? b. How many ...
December 15, 2008 by Joe

math
(AIR TRAVEL) Two jets bound for Dammam leave Jeddah 30 minutes apart. The first travels 550 miles per hour, while the second goes 650 miles per hour. At what time will the second plane pass the first?
November 12, 2011 by m.h.j

math
(AIR TRAVEL) Two jets bound for Dammam leave Jeddah 30 minutes apart. The first travels 550 miles per hour, while the second goes 650 miles per hour. At what time will the second plane pass the first?
November 12, 2011 by m.h.j

algebra
Jerry rented a rototiller for 9.25dolars per hour. H must supply his own gas. Jerry estimates he will spend 1.36 dollars of gas per hour. How many hours did it take Jerry to till his garden if it cost him $53.05
November 11, 2013 by Anonymous

help!/ very puzzled
remon rented a sprayer and a genarator. On his first job, he used each peice of equipment for 6 hours at a total cost of $90. On his second job,he used the sprayer for 4 hours and the genarator for 8 hours at the cost of $100. what was the hourly cost of each peice of ...
June 20, 2005 by casandra

Math
Marvin's Taxi Service charges $0.30 for the first kilometre and $0.05 for each additional km. If the cab fare was $3.20, how far did the Taxi go? Cost of first kilometer = $0.30 Total cost of additional kilometers = (3.20 - 0.30)= 2.90 Total number of kilometers = 1 +($2.90/$0...
April 25, 2012 by Rezu

GPH111
On a map with a scale of 1:50,000, a measured distance of 7.5 centimeters represents an actual distance of :_____ kilometers Do I just times this to get 375,000 kilometers?
March 9, 2012 by Jazmyne

math
i dont get 2 use the rate 380 miles in 5 hours 2 find the unknown number for each equivelent rate round to the nearset tenth I don't get your question. What "equivalent rates" are you talking about? 380 miles in 5 hours is an average speed of 76 miles per hour. 72 cookies in 3...
April 15, 2007 by fre

3
t= 5.79 (a) There are approximately 1609 meters per mile. If the sun is 93 million miles away, how far is the sun in kilometers to two significant figures.
September 11, 2014 by joe

Ed
In a AAA map of Ohio, 1 inch equals approximately 10 miles or 18 kilometers. If the distance on the map between Paulding and Eaton is 9.8 inches, how many kilometers is it between the two towns.
January 12, 2010 by Lisa

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

math
A boat is rowed down a river a distance of 16 miles in 2 hours and it is rowed upstream the same distance in 8 hours. Let r represent the rate of the boat in still water in miles per hour, and let c represent the rate of the stream in miles per hour. Write the equation. What ...
March 14, 2012 by lea

math !!!! :O
Emilys dad pays her for picking strawberries. Each hour she works he increases her pay. The first hour she earns two cents, the second hour she earns four cents, the third hour eight cents, and so on, doubling the amount each hour. How much money will she earn if she works ...
March 14, 2011 by evelyn

Algebra
Two trains start from the same place at the same time. They travel i~ opposite directions. One averages 60 miles per hour and the other averages 80 miles per hour. After how long will they be 420 miles apart?
April 2, 2012 by LIbby

college algebra
a bus driver wants to average at least 40 miles per hour on a 70 mile trip. if the first 35 miles takes the driver 1 hour what should be the lowest average speed for the second 35 miles?
October 17, 2010 by matt

Math
In a AAA map of Ohio, 1 inch equals approximately 10 miles or 18 kilometers. If the distance on the map between Paulding and Eaton is 9.8 inches, how many kilometers is it between the two towns?
April 21, 2010 by Lisa

Math
In a AAA map of Ohio, 1 inch equals approximately 10 miles or 18 kilometers. If the distance on the map between Pauling and Eaton is 9.8 inches, how many kilometers is it between the two towns?
November 11, 2013 by Brittany

فيزياء
Two automobiles are 155 kilometers apart and traveling toward each other. One automobile is moving at 70 km/h and the other is moving at 32 km/h. In how many hours will they meet?
October 10, 2014 by أسيل

Math
Pipes A & B can fill a storage tank in 8hours and 12 hours, respectively . With the tank empty ,pipe A was turned on at noon, and then pipe B was turned on at 1:30 P.M.At what time was the tank full. Please help me!! Let V be the tank volume. Pipe A fills at (1/8 V) per hour ...
December 5, 2006 by Ronald

new physics
a man leaves his house for 2 hours. after walking in a straight line for two hours he is 10 miles from home. calculate the man's average speed in terms of miles per hour.
October 15, 2010 by eliska ware

Algebra
2 cyclists travel opposite on circular trail that is 5 miles long. one cyclist travels 12 miles per hour, the other travels 18 miles per hour. How long before they meet?
October 22, 2012 by Anonymous

MATH
We do not provide the units for your answers. Do no type them in the answer box. Enter the numerical value or calculations only. You drove 2695 miles in 35 hours. (1) What is your average rate of change? (2) Suppose you can drive that distance at a legal 75 mile per hour rate...
September 9, 2010 by URGENT DUE TODAY

algebra
INTRODUCTION TO RATIONAL EXPRESSIONS Distance and Time A car is traveling at 60 miles per hour. (a) How long does it take the car to travel 360 miles? (b) Write a rational expression that gives the time that it takes the car to travel M miles
January 25, 2012 by felica

jones
alexandra drove 8 hours to visit he grandmother. if she avereged 55 miles per hour for the trip , how far did she drive?
September 13, 2011 by stony

Math
How do I solve this question? "Rory Gilmore earns $20 per hour during the week and $30 per hour for overtime on the weekends. One week Rory earned a total of $650. She worked 5 times as many hours during the week as she did on the weekend. Write and solve an equation or system...
February 19, 2011 by Max

Math
Harry drove for 6 hours on the freeway, then decreased his speed by 20 miles per hour and drove for 5 more hours on a country road. If his total trip was 648 miles, then what was his speed on the freeway?
March 27, 2013 by Sheree

math
River Current A boat can travel 36 miles upstream in the same time that it can travel 54 miles downstream. If the speed of the current is 3 miles per hour, find the speed of the boat without a current.
August 2, 2011 by Adam

Math
A semi-truck travels on a paved road for 2 hours at an average speed of 20 miles per hour faster than it travels on a dirt road. The time spent on the dirt road is 3 hours. If the entire trip is 200 miles, how fast is the truck traveling on the dirt road?
February 12, 2010 by Leigh

physics
A man leaves his house and begins to walk for 2 hours. After walking in a straight line for two hours he is 10 miles from home. Calculate the man's average speed on terms of miles per hour.
May 21, 2013 by help me asap.

Stats
-------------------------------------------------------------------------------- Give a table extrapolating potential capacity using 1,000 households as a standard unit. o Using 3 hour window as the measurement tool o Using 7 hour window as the measurement tool o Include a ...
March 24, 2008 by Sarah

Math
Carlo drove for 3 hours in a fog, then increased his speed by 30 miles per hour (mph) and drove 6 more hours. If his total trip was 540 miles, then what was his speed in the fog.
June 13, 2012 by Ciara

calculus
Hi i need help in this. Some of the parts i got the answer but some i don't. please help! A ship uses $(7v^2) of fuel per hour when travelling at a constant speed of v km/h. Other expenses in operating the ship (i.e. crew and equipment) amount to $345 per hour. The ship makes ...
August 12, 2012 by Becky

Math
A student ears $10 per hour for tutoring and $7 dollars per hour as a teacher's aid. Let x= number of hours each weeks spent tutoring and y=the number of hours each week spent as teacher's aid. Write the objective function that describes the total weekly earnings: e=10x+7y ...
May 9, 2011 by pele

math
A consultant traveled 7 hours to attend a meeting. The return trip took only 6 hours because the speed was 10 miles per hour faster. What was the consultant's speed each way? Rachel earns $6000 less than twice as much as Tom. If their two incomes total $48,000, how much does ...
May 28, 2007 by ashley-help please!

Math I need help Please help me!!!!!!
Daniel is climbing up a cliff at a rate of 2 meters per minute. What is his rate in feet per hour? A. about 36.6 feet per hour B. about 98.4 feet per hour C. about 197 feet per hour D. about 394 feet per hour
January 30, 2013 by Mary J.

Math I need help Please help me!!!!!!
Daniel is climbing up a cliff at a rate of 2 meters per minute. What is his rate in feet per hour? A. about 36.6 feet per hour B. about 98.4 feet per hour C. about 197 feet per hour D. about 394 feet per hour
January 30, 2013 by Mary J.

math
The Thompson Company uses standard costing and has established the following direct material and direct labor standards for each unit of Lept. Direct materials: 2 gallons at $4 per gallon Direct labor: 0.5 hours at $8 per hour During September, the company made 6,000 Lepts and...
March 28, 2013 by lisa

Math
Traveling at approximately 186,000 miles per second, about how many miles does a beam of light travel in 2 hours? F. 3.72 x 10^5 G. 2.23 x 10^6 H. 2.67 x 10^7 J. 6.70 x 10^8 K. 1.34 x 10^9
May 4, 2015 by Anonymous

Maths
Ann has 4 different jobs and she works 10 hours per week for each job. She earns $2 per hour at one job. Write an expression to represent how much Ann earned last week if she earns a dollars per hour at her other jobs help please I put 10x20x4
March 5, 2015 by Pinks

Comparing Data
-------------------------------------------------------------------------------- Give a table extrapolating potential capacity using 1,000 households as a standard unit. o Using 3 hour window as the measurement tool o Using 7 hour window as the measurement tool o Include a ...
March 25, 2008 by Sarah

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

MATh
Kesha dove from Buffalo to Syracuse at an average rate of 48miles per hour. On the return trip along the same road she was able to travel at an average rate of 60 miles per hour.The trip from Buffalo to Syracuse took one- half hour longer than the return trip. How long did the...
October 13, 2011 by Tiffany

Math - Oh my gosh please help!
Lisa's Running Distances Day Distances (in kilometers) Monday 2.05 Tuesday 4.10 Wednesday 3.80 Thursday 1.95 Friday 4.05 Estimate the average distance, in kilometers, Lisa ran for the five days. Explain your estimation strategy. Based on your previous answer, estimate the ...
December 12, 2013 by Anonymous

Thinking Mathematically - Geometry
A rocket ascends vertically after being launched from a location that is midway between two ground-based tracking stations. When the rocket reaches an altitude of 4 kilometers, it is 5 kilometers from each of the tracking stations. Assuming that this is a locale where the ...
November 2, 2013 by Anonymous

Thinking Mathematically - Geometry
A rocket ascends vertically after being launched from a location that is midway between two ground-based tracking stations. When the rocket reaches an altitude of 4 kilometers, it is 5 kilometers from each of the tracking stations. Assuming that this is a locale where the ...
November 2, 2013 by Anonymous

math
The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.
July 22, 2010 by matt

math
The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.
August 27, 2010 by Tanisha

Pre-Calc
a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal asymptotes of the ...
January 22, 2014 by Andy G

Pre-calc
a driver averaged 50 miles per hour on the round trip between akron, oh and Columbus, oh, 100 miles away. The average speeds for going and returning were x and y miles per hour, respectively. a. show that y=25x/x-25 b. determine the vertical and horizontal asymptotes of the ...
January 23, 2014 by Andy G

maths
Two planes take off from the same airport at the same time. One plane travels on a bearing S 12degreeW at 400 miles per hour. The other plane travels on a bearing N 75degreeE at 300 miles per hour. How far are the planes from each other 3 hours after takeoff?
November 17, 2011 by ritu

help i have no idea!!!!!!
3.Sam is a mailman who delivers mail in a mail truck. His route is 2 kilometers long. He usually starts his route at 8:00 am and finishes by 12:00pm If Sam decided to get a bigger route that is 12 kilometers long, what does his average speed need to be to start and finish at ...
March 18, 2014 by eduarda

algebra
Marlene drive 540 miles to visit friend. drive for 3 hours then stopped for gas, then drive 4 more hours stopped for lunch. how many more hours do I drive if my average speed for trip is 60 miles per hour ? How would I write an equation?
December 8, 2011 by Todd

physics
. Compared a car (mass of 2000 kg) moving at 10 miles per hour, how much kinetic energy (in Joules) does that same car have when it moves at 20 miles per hour? At 50 miles per hour? 75 miles per hour?
March 12, 2012 by Hector

Math- Multi-step word problems
A plane traveling from Chicago to Boston with a tailwind of 10 miles per hour takes 4 hours. The return trip in the same wind, which is now a headwind, takes the same plane 4 hours and 9 minutes. According to this problem, about how far is it from Chicago to Boston? 1800 miles...
October 1, 2014 by Kitty

Math
Sonja is paid $42.50 per hour as a veterinarian. She is paid 1 1/2 times the regular rate for all time exceeding 7 1/2 hours in a day or 37 1/2 hours per week. Work on a statutory holiday is paid at double time. What were her gross earning for a week in which she worked for 6...
August 10, 2009 by Tha

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

math6
shaunti drove 621miles in 11.5 hours.wht was her average speed in miles per hour?
February 4, 2013 by fatima

physics
A driver drives 2.5 hours at an average speed of 48MPH. What distance does she travel in this time?
February 10, 2014 by julia

physics
A driver drives 2.5 hours at an average speed of 48MPH. What distance does she travel in this time?
February 10, 2014 by julia

math
a vehicle uses 1 tablespoon of gasoline to drive 125 yard how many miles can the vehicle travel per gallon? a model airplane flies 18 feet in 2 seconds what is the planes speed per miles an hour? how do i do these
October 21, 2010 by courtney

math (algerbra)
A bricklayer's assistant starts building a wall, laying 50 bricks per hour. Two hours later the master comes and lays down 80 bricks per hour. x= number of hours since the assistant has been laying. Qusestion-------- Write expressions for the number of bricks the assistant has...
November 11, 2007 by Erin W!!!!!!

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