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August 31, 2015

Search: A motorist drives south at 20.0 m/s for 3.00 min

Number of results: 6,347

Math
If Bill drives 45 MPH and Jim leaves 2 hours later and drives 75 MPH and they both maintain constant speed, how long will Jim travel before passing Bill?
January 8, 2009 by Sally

physics
A car drives 100 meters at 30 degrees north of east, stops, turns to an angleof 210 degrees from the east, and then drives another 60 meters. What is the magnitude of the total displacement?
April 11, 2011 by Mary

us history
Which of these statements best compares the economic development of the North and South during the first half of the 19th century? More factories and railroad lines were built in the North than in the South. The North developed more trade connections with Europe than the South...
March 27, 2015 by Oscar

trigonometry
A truck with 48-in.-diameter wheels is traveling at 45 mi/h. (a) Find the angular speed of the wheels in rad/min. rad/min (b) How many revolutions per minute do the wheels make? rev/min
November 26, 2012 by monic

Physics
Jason drives due west with a speed of 35.0 mi/hr for 30 mins, then continues in the same direction with a speed of 60.0 mi/hr for 2.00 hr then drives farther west at 25.0 mi/hr for 10.0 mins. What is his average velocity?
September 12, 2010 by Dakota S

Physics
A truck driver travels 55 km in 1 hour. He then drives a speed of 35km/hr for 2 hrs. Next, he drives 175 km in 3 hrs. What was his average speed? Should i add up the total distance and total time taken then solve?
March 25, 2013 by Ariel

math
Simple algebra question, but i need a little assistance on it!! like, how to i get started?? A truck drive in a western states drives 200 miles ever 3 hours. Each day he drives exactly 12 hours and earns $185. How much will he earn for making a 2400 mile trip? THANK YOU FOR ...
September 1, 2007 by insertmynamehere

STATS
recent 10K run the finisher are norm dist with a mean of 55 min and stand dev of 13 A) determine the percentage of finishers with times between 45 and 75 min B) determine the percentage of finshers less than 80 min C) obtain the 30th percentile D) find the 8th decile
April 27, 2012 by RACHELLE

physics
a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip
November 13, 2012 by connor

math
mr.flanders drives 1 2/3 miles to school and 1 2/3 miles home each day.he also drives an extra 2 2/7 miles to go to the gym.how many miles does he drive in one day?
January 27, 2015 by LAKSHMI

physics
part 1 Simpson drives his car with an average veloc- ity of 47.5 km/h to the east. How long will it take him to drive 137 km on a straight highway? Answer in units of h part 2 How much time would Simpson save by in- creasing his average velocity to 105 km/h to the east? Answer...
September 6, 2011 by ashley

Statistics
Exponential distribution was used to model the lengths of CD-ROM drives in a two drive system. The two CD-ROM drives operate independently, and at least one drive must be operating for the sytem to eperate successfully. Both drives have a mean length of life of 25,000 hours. A...
August 2, 2012 by Danielle

math,
Exponential distribution was used to model the lengths of CD-ROM drives in a two drive system. The two CD-ROM drives operate independently, and at least one drive must be operating for the sytem to eperate successfully. Both drives have a mean length of life of 25,000 hours. A...
March 11, 2015 by ehsan

Physics
A car enters the freeway with a speed of 7.2 m/s south and accelerates uniformly for 4.2 km in 4.0 min. How fast (in m/s) is the car moving after this time? I only need the formula. My teacher gave us a list but did not tell the class which equation is for which. Help please.
September 23, 2014 by Selena

math
Simplify. 3 h 20 min 4 h 25 min + 5 h 35 min
November 10, 2009 by Anonymous

physics
It takes you 7.6 min to walk with an average velocity of 2.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m What is your direction? (multiple choice) 1. West 2. North 3. South 4. East
September 29, 2011 by Sam

Math
If niti drives her car at 5okm/hr from her home,she reaches the office late by 10min. However if she drives at 60km/hr,she reaches the office 5min early.find the distance of the office from her home.
September 8, 2012 by Simran kaur

physics
What is the angular speed in rev/min of the Earth as it orbits around the sun? I'm confused with this problem. I know we have to convert from rad/s to rev/rad to s/min in order to get the units as rev/min. But I don't know what to use for rad/s
April 17, 2012 by Priscilla

South America
an aeroplane flies horizontally at 80m/s in still air if the aviator wishes to fly due south and the wind is blowing from the south-east at 30m/s 1.what course must he steer 2.how long will it take him to arrive at his destination 200km away
March 16, 2013 by Mehmood

math
a motorist goes 78km in 40minutes calculate it speed
July 4, 2011 by Anonymous

pre-algrebra
I just do not understand dimensional analysis. Can anybody explain this question: 32 cm = ?m ---- ---- s min Although your dimension labels to not seem to be lined up correctly, it looks like you are being asked to convert 32 cm/s to ? meters/minute. You can do that by ...
March 20, 2007 by Janet

physics
Heather and Matthew walk eastward with a speed of 0.98 m/s. If it takes them 34 min to walk to the store, how far have they walked? If Joe rides south on his bicycle in a straight line for 15 min with an average speed of 12.5 km/h, how far has he ridden? It takes you 9.5 min ...
September 20, 2006 by anonymous

Chemistry
The instantaneous rate of appearance of water from the reaction 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) at some moment in time is 21.3 mmHg per minute. What is the instantaneous rate of disappearance of NH3 at the same moment in time? 10.7 mmHg/min 14.2 mmHg/min 21.3 ...
May 16, 2011 by dude

Physics
A forklift driver at the Acme W&W warehouse drives a forklift from the main entrance to a loading dock 20m away. He then turns back towards the entrance and drives 13m to pick up a pallet of equipment. Finally, he turns back towards the loading dock, drives 10m and deposits ...
August 30, 2014 by Yalin

English check
1.)Supported the ideas of plainness, divine mission, and grace =a.)The North--Puritanism b.)The South---Gentlemen Planters c.)Both 2.Came to America to find freedom to worship and the Promised Land =a.)The North--Puritanism b.)The South---Gentlemen Planters c.)Both 3.Believed ...
August 24, 2010 by Ariel

geography
which of the following statements is true of Singapore a. Singapore's government condemned u.s. military actions in Afghanistan. b. Singapore finally became self governing in 1965 c. Singapore is member of the federation of Malaysia d. Singapore is a major manufacturer of ...
January 20, 2014 by cali

MATH
Abby, Betty, Cassie, and Dale need to cross the river on a boat. The boat only fits at most two people. If two people go over one must bring it back for the others. Abby takes 1 min., Betty 2 min., Cassie takes 5 min., and Dale takes 10 min.. The time it takes is based on the ...
April 27, 2015 by Chris

physics
A train moving at a constant speed of 68.0 km/h moves east for 33.0 min, then in a direction 40.0° east of due north for 30.0 min, and then west for 59.0 min. What is the average velocity of the train during this run? Magnitude km/h Direction ° (counterclockwise east)
December 14, 2008 by john

PHYSIC
If a blue car drives 10km/h across the deck of an ocean liner that is traveling at 90km/h, what is the blue car's speed relative to the surface of the water when it drives toward the front of the ocean liner?
October 6, 2010 by ANA

math
john types 20 pages in 40 min, sue types 20 pages in 30 min, bob types 20 pages in 24 min. working togehter how long to type 20 paqes
February 5, 2012 by cliff

Statistics
The following data represent the number of flash drives sold per day at a local computer shop and their prices. Price (x) Units Sold (y) $34 3 36 4 32 6 35 5 30 9 38 2 40 1 a. Perform an F test and determine if the price and the number of flash drives sold are related. Let (...
April 29, 2012 by Paul

Math
Christian drives 120 miles in the same length of time while Julius drives 200 miles. If the speed of Julius exceeds that of Christian by 35mph, find the speed of each
July 20, 2014 by AD12

math
jimmy swam for 5 more min than tim. write an expression showing the number of min tim swam. let m represent the number of min.
April 4, 2011 by madsion

Physics. Please help. Thanks
in the last three years, Fred's basketball team won 30 more games than they lost. if they won 150 games, what was their ratio of wins to losses? What are three different ways to show the ratio? what is the unit rate if Ramon drives his car 180 miles in 3 hours? what is the ...
September 26, 2012 by sk8rgurl

Geography
Which continent extends farther south, Australia or South America? South america
October 4, 2006 by Ian

math
how to solve this problem: max min(x-y)..... here where the max have written, under it x>=0 is also given. also under min y>=0 is given. Also tell that is this is equals to min max(x-y) ? (same as above under max x>=0, under min y>=0 is given) x and y both in R
November 16, 2011 by shiya

biostatistic
recent suggestion is 60 min of exercise per day. A sample of 50 adults in a study of risk factor report exercising a mean of 38 min per day with a standerd deviation of 19 min .based on sampal data, is physical activity significantly less than recommended? Run the appropriate ...
November 20, 2012 by nono

math
the first planhas a $16 monthly fee and charges an additional $.08 for each min. of calls. the second plan charges $10. fee and charges an addition $.13 for each min. for how many min. of calls will the cost be equal?
August 27, 2014 by lisa

Physical Science
How does a Doppler effect aid police in detecting speeding motorist?
April 5, 2008 by Rachel

Physics
A motorist travels 90 km at 120km/h , and 70km at 75km/h . What is the average speed for the trip?
September 7, 2011 by Shay Baby

Maths
An aeroplane leaves a point on latitude 54degree south at 10 a.m. It flies due south at a steady speed of 800km/h. (a) what is its latitude at mid-point? (b) at what time does it pass over the south pole?
November 23, 2012 by Tosin

calculus
Determine the rate at which the surface area is changing with respect to time at t=2 min, assuming that r = 3 at t = 0 Assume that the radius r of a sphere is expanding at a rate of 14 in / min. Its surface area is 4(pi)r^2 Ds/dt= 4pi2rdr/dt i got 4pi2(28)(14) is that right or...
October 14, 2010 by Help asap!! plz

math
Timmy and Kenny raced in biking and running. Timmy won first place by clocking in at 5.75 min. in biking and 8.2 min. in running. Kenny won 2nd place by clocking in at 6.2 min. in biking and 9.4 min. in running. What is the difference of their clock-ins together?
August 1, 2014 by asdasd

Biology
Hey I am doing a lab, the link is down h t t p : //w w w . sd67 . bc . ca/schools/salc/biology%2012/module%20c%20-%20human%20biology/unit%2010%20-%20respiratory%20system/Homeostasis%20Lab .pdf And I really would like help with #1 My data is right here Pre exercise 0 min - Temp...
February 7, 2013 by Shreya

math
Write the following ratio in simplest form: 32 min : 36 min
October 31, 2012 by Isa

Chemistry
How long will it take to collect 1.0 L of H2(g) at STP in the electrolysis of 2.0 M HCl with a current of 4.25 A? a. 15 min b. 34 min c. 2.8 hr d. 11 hr
June 5, 2013 by Anonymous

Physics
A car travels 30 km north in 25 min. and 40 km east in 35 min. What is the total distance traveled?
June 13, 2013 by Isis

Chemistry
Nitric oxide reacts with chlorine to form nitrosyl chloride, NOCl. Use the following data to determine the rate equation for the reaction. NO + (1/2)Cl2 -> NOCl Expt.[NO] [Cl2] Initial rate 1 0.22 0.065 0.96 M/min 2 0.66 0.065 8.6 M/min 3 0.44 0.032 1.9 M/min
February 6, 2013 by Anonymous

math
marcus drives a delivery truck and spent$89 on gas his frist week.if he drives 8 months using about this much gas each week,how much would he spent on gas ?use estimation to find the answer to the nearest $1000.
February 28, 2011 by cindy

Math
determine max and min value 3,- 36/7,-1,-2/3,5/4,-5,26/9 answer max3 min-5 ? put in asending order -2/9,-1/9,3/7,5/9,1/8
October 17, 2009 by david

Chemistry
If the time elapsed is 4.26 min, what is the value of the rate constant, k? ln[R]t / [R]o = -0.0237 I am not sure how to slove this. Is Rt 4.26 min?
March 5, 2012 by Hannah

Math Help!!!
Write the following ratio in simplest form: 32 min: 36 min A. 8:9 B. 8:36 C. 32:9 D. 128:144 Is the answer A? Thank you
November 11, 2014 by Callie

math
If a CD makes 58 and half revolutions in 3 fourths a min ,how many in a min
November 19, 2014 by theodore

Math
Convert 240sec= min. Is this correct I got 4 min
August 12, 2015 by Amy

math
express distance as a function of time traveled. jason leaves detroit @ 2pm & drives at constant speed west. he passes ann arbor, 40 mi. from detroit at 2:50 pm. i understand that d=rt. but i'm stuck. is this the answer-- d(t)=t/rt ?? You could make a table like this 2pm 0m ...
September 27, 2006 by hawkstar

Math
Elephant speed (666m/min Zebra speed (1066m/min Assume they maintain these speeds and run away from each other. How far away from each other would they be after 3 min? How long would it take them to be 3464m apart? Need help figuring out the formula to do these.
September 30, 2008 by Larry

Chemistry(Please help, thank you!)
If the time elapsed is 4.26 min, what is the value of the rate constant, k? ln[R]t / [R]o = -0.0237 I am not sure how to slove this. Is Rt 4.26 min?
March 6, 2012 by Hannah

Math
If an individual wants a work of 1300 kg m/min with a cycling speed of 300 m/min, how much resistance is needed?
October 6, 2013 by Natasha

Chemistry
Consider the following hypothetical aqueous reaction: A (aq)-->B(aq)}. A flask is charged with 0.065 (mole) of A in a total volume of 100.0 (mL}. The following data are collected: Time (min) 0 10 20 30 40 Moles of A .065 .051 .042 .035 .031 Calculate the average rate of ...
February 9, 2012 by Emily

Physics
route that takes it 12 km [E] of its starting position in 24 min. In another 24 min, the bus turns around and retraces its path to the terminal.
October 2, 2014 by Han

algebra
1. 18 m/min = cm/s 2. 5.7 gal/h = c/min 3. 264 yd/s=? mi/h Anyone know the answers to these?
January 24, 2008 by kt

Statistics
A disk drive manufacturer has determined that his product has a “mean time to failure” of 10,000 hours, with a standard deviation of 500 hours. Due to the many factors involved, it is assumed that the time to failure is normally distributed. A network operations center ...
March 4, 2010 by Fran

Physics
A train at a constant 41.0 km/h moves east for 38 min, then in a direction 44.0° east of due north for 25.0 min, and then west for 59.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
February 6, 2012 by Alice

Physics
A train at a constant 41.0 km/h moves east for 38 min, then in a direction 44.0° east of due north for 25.0 min, and then west for 59.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
February 6, 2012 by T mann

physics
A train at a constant 41.0 km/h moves east for 38 min, then in a direction 44.0° east of due north for 25.0 min, and then west for 59.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
February 6, 2012 by T mann

physics
A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
October 7, 2012 by tatiana

physics
A train at a constant 68.0 km/h moves east for 41 min, then in a direction 65.0° east of due north for 22.0 min, and then west for 60.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
October 7, 2012 by tatiana

Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
October 9, 2012 by Devin

Physics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
October 9, 2012 by D

phyics
A train at a constant 44.0 km/h moves east for 42 min, then in a direction 45.0° east of due north for 17.0 min, and then west for 51.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
October 10, 2012 by D

Physics
A train at a constant 41.0 km/h moves east for 28 min, then in a direction 53.0° east of due north for 15.0 min, and then west for 64.0 min. What are the (a) magnitude (in km/h) and (b) angle (relative to north, with east of north positive and west of north negative) of its ...
February 9, 2014 by Robin

Kinesology
A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?
February 29, 2012 by Sam

Science
A person performs a work task at a mechanical efficiency of 20 percent and at total energy output of 15kcal/min. How much energy(kcal/min) is lost as heat? and how much energy(kcal/min) is used to actually perform the work?
February 29, 2012 by Sam

Physics
A train moving at a constant speed of 61.0 km/h moves east for 35.0 min, then in a direction 50.0° east of due north for 10.0 min, and then west for 49.0 min. What is the average velocity of the train during this run? What is the magnitude of that velocity? What is the ...
January 27, 2014 by Anonymous

statistics
A researcher conducted a study of the access speed of 40 hard drives and concluded that his maximum error of estimate was 15. If he were to conduct a second study to reduce the maximum error of estimate to 5, about how many hard drives should he include in his new sample?
May 10, 2012 by Koia

math214
Use the following data to justify the amount of time that you expect to assign for weekly homework to classes in grades K–4 and grades 5–8. National Survey of Teachers Concerning the Amount of Homework Assigned per Week k-4 (percentages) 5–8 (percentages) 0–30 min 48 8 31–60 ...
September 25, 2011 by darcel78

Algebra
A athlete runs 40 ft in 5 minutes. i have to find the rate help please per min... 40ft/5min= 8ft/min
August 21, 2007 by MEL

math
maria shoveled snow fromher driveway in 55 min. tom can do the same job in 30 min. how long will it take to do it together?
April 11, 2013 by pam

Physics! another one i need help with
the velocity of the wind would be: (42km/h)cos(30)=36.37 After flying for 15 min in a wind blowing 42 km/h at an angle of 30° south of east, an airplane pilot is over a town that is 50 km due north of the starting point. What is the speed of the airplane relative to the air in...
February 3, 2007 by Troyyyy

Calculus
RP^2=RQ^2 + QP^2 -2(RQ)*(QP)cosQ (1) QP = 24 (km/min) t (2) Diffentiate both sides w.r.t. the time t: 2 RP* d Rp/dt = 2 t [24 (km/min)]^2 -2(RQ)* 24 (km/min) cosQ (3) Using (1) and (2) you find out what RP is at t = 4 minutes. You plug that into (3) and solve for d Rp/dt. A ...
November 14, 2006 by Count Iblis

chemistry
33) A first-order reaction has a rate constant of 0.33 min-1. It takes __________ min for the reactant concentration to decrease from 0.13 M to 0.088 M. A) 1.4 B) 0.13 C) 1.2 D) 0.85 E) 0.51 how can i set this up?
November 1, 2010 by JES

Geography
if you traveled south from South America, What is the next continent you would reach? Do you have a globe you can look at? If not, do you know which continent is located at the very southern-most point of the earth? if you traveled south from south america,waht is the next ...
October 31, 2006 by cindy

MATH
Lenny,mark,andliza are going to jog along 3 different trails in the park. To complete one circuit , lenny takes 6 min., Mark takes 12 min., and liza takes 9 min. if they start at the same place and the same time, how long will it be before they are together again at the ...
September 25, 2007 by kejuan

health
i was completing my study guide so i can study and i ran across these questions and needed help? An activity done in a short burst at a high level of intensity without oxygen is___. A.aerobic B.anaerobic C.intense D.maximal Sarah wants to know her target heart rate zone.Her ...
December 17, 2013 by matt

us history
Which of the following statements is FALSE about Andrew Johnson's perspective about the South? Answer He viewed Southern plantation aristocrats with contempt. He wanted to treat the South similar to a conquered province. He blamed individuals for leading the South to war. He ...
April 17, 2012 by Dave

English
1. The south exit is close to the bus stop. 2. The south exit is close by the bus stop. 3. The south exit is near by the bus stop. 4. The south exit is nearby the bus stop. 5. The south exit is next to the bus stop. ========================= Which ones are grammatical? What ...
June 29, 2015 by rfvv

Math
Petra has 20 min.to finish pumping the water out of the pool. There are 1850 gallons of water left in the pool. Will Petra be finished in 20 min.? Why or why not? I say no because I multiplied 1850 by 20 and got 37,000. She want be finished in 20 min. Is this correct
November 3, 2014 by Amy

Math
Find the critical points and the interval on which the given function is increasing or decreasing, and apply the First Derivative Test to each critical point f(x)= (7/4)x^4+(28/3)x^3+(-63/2)x^2-252x critical points in increasing order: c1=? min or max? c2=? min or max? c3=? ...
December 10, 2014 by Samantha

pre alg
2.5 qt/min. = _gal/min
December 10, 2007 by john paul

geometry
Lenny’s favorite radio station has this schedule: news: 15 min. commercials: 3 min. music: 42 min. If Lenny chooses a time of day at random to turn on the radio to his favorite station, what is the probability that the news will be on?
October 22, 2013 by tamara

phsics
a car moving with an initial velocity of 60 m/s south has a constant acceleration of 10 m/s^2 north. After 12 seconds its velocity will be: A) 60 m/s south B)60 m/s north C) 40 m/s north D) 40 m/s south
September 2, 2013 by jack

English 11
The motorist, confused by conflicting directions, lost his way. Verbal phrase: Gerund Being used as: Adverb?
September 26, 2012 by Anonymous

Geography
1.1.1define the term drainage basin 1.1.2what is the difference between drainage basin and catchment area? 1.1.3 name any two water management areas in south africa. 1:2 THE IMPONTANCE OF MANAGING DRAINAGR BASIN CATCHMENT AREAS IN SOUTH AFRICA SHOULD BE A CORCERN FOR ALL SOUTH...
February 13, 2015 by Jeannett

Elapse time
3h 40min 10 h 15 min Renaming 11:00 as 10 hours 15 minutes -7h 35 min Subtract the beginning time ------------------ 3h 40 min Subtract So I actually subtract all of it and not add the minutes right? So my answer should be 3h 20min right? How can I check if this is right?
December 3, 2012 by Moby

MICRO ECONOMICS
You have been allocated an investment budget of $100 million U.S. You are to make a strategic assessment of the microeconomic strengths and weaknesses of the industry in South africa in REFREIGRATORS & FREEZERS as a potential location for this new capital investment. An your ...
March 3, 2007 by AKHIL

maths magic
There are A,B,C,D at one end of the bridge.they have to cross within 17 minutes.only 2 can cross the bridge at atime .since it is very dark one has to come back to show the light and its said that A can cross the bridge in 1 min ,B can cross at 3min ,C in 5 min and D in 10 min...
October 27, 2012 by nanbala

Physics
To get to a concert on time, Dakota has to drive 122 miles in 2.00 hrs. (a) if he drove at an average speed of 55.0 mi/hr in a due west direction for the first 1.20 hr what must be his average speed if he is heading 30 degrees south of west for the remaining 48.0 min? (b)what ...
September 12, 2010 by Dakota S

math
Tank 1 initial contains 70 L (liters) of water and 450 g of salt, while tank 2 initially contains 20 L of water and 200 g of salt. Water containing 10 g/L of salt is poured into tank1 at a rate of 1 L/min while the mixture flowing into tank 2 contains a salt concentration of ...
February 6, 2009 by alice

physics
3- An electric motor can accelerate a Ferris wheel of moment of inertia (I =20 000 kg.m2) from rest to (10.0 rev/min) in (12.0 s). When the motor is turned off, friction causes the wheel to slow down from (10.0 to 8.00 rev/min) in (10.0 s). Determine (a) the torque generated ...
March 16, 2013 by a

math
need to check answers please 9/11-3/11+7/11=13/11=1 2/11 evaluate then to lowest form One task took 7 minutes (min), a second task took 12 min, and a third task took 21 min. How long did the three tasks take, as a fraction of an hour?2/3 find perimeter of triangle 3/8 then ...
September 10, 2009 by p

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