Saturday

October 1, 2016
Number of results: 146,927

**math**

Here is the information for two pay-as-you-go cell phone companies, On Call- 3.5 hours: $10 Talk Time- 1/2 hour: $1.25 1)What is the unit rate in dollars per hour for each company? 2)Which company offers the best deal? Explain your answer. 3)Another company offers a rate of $0...

*October 6, 2015 by Tim*

**Easy Math??**

Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a, but I don't know how to...

*July 30, 2015 by Ryan*

**math**

Runnign at a consant speed, Andrea covers 15 miles in 2 and half hours. At this speed, how many minutes will it take her to run 2 miles?

*April 15, 2009 by Anonymous*

**MATH**

SHELDON CAN RUN A MILE IN 6 4/5 MINUTES, HOW MANY MILES CAN HE RUN IN 30 MINUTES.

*December 16, 2014 by MICHELE*

**math (algebra) **

A construction crew built 6 miles of road in 2/7 days. what is the unit rate in the miles per day? Deon drove 469 miles in 7 hours. At the same rate, how long would it take him to drive 806 miles?

*October 30, 2015 by Anonymous*

**9th grade**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mile per hour and train B is traveling at 125 mile per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:27 pm at what time will train B catch up ...

*March 10, 2010 by Kimmie*

**math word problems**

(24 cents) per mile. Toyotas rent for $31 per day and $.19 (19 cents) per mile. Write a cost equation for each rental car. Would the equation be in the form of y = mx + b y = .24x + 25 y = .19x + 31 The second one looks ok to me. All of the information from the first problem ...

*August 20, 2007 by Michelle W.*

**finance management **

You are going to open a business making custom cabinets. You can sell each cabinet for $80. It takes a cabinetmaker approximately 45 minutes to make one cabinet. Each cabinetmaker works an 8-hour day earning $18 per hour. Each cabinet uses $25 in raw materials. You usually ...

*August 7, 2016 by sandra*

**calc**

A train travels from city A to city B. The cities are 600 miles apart. The distance from city A at t hours after the train leaves A is given by d(t) = 50t + t^2. What is the average velocity of the train in miles per hour during the trip from A to B?

*February 6, 2010 by h*

**math**

define a variable and write an equality for each situation the maximum speed allowed on main st is 25 miles per hour a trainer advises an athlete to keep rate under 140 beats per minute

*October 13, 2012 by anonymous*

**Math**

Global Telephone charges 30 dollars for monthly phone service, plus a long distance calling rate of 15 cents per minute. After an hour of long distance calling charges,the rate drops to just 5 cents per minute for additional long distance calls. What will the monthly bill be ...

*August 2, 2011 by Kris*

**Math plz help me!!! URGENT!!**

1. Write the ratio in the simplest form. 16:24 (1 point) 1:2 4:3 3:4 2:3 2. Solve the following proportion. (1 point) p = 2 p = 8 p = 12 p = 24 3. A recipe calls for 2 cups of sugar to make 2 dozen cookies. Use the proportion to calculate how much sugar is needed to make 6 ...

*November 22, 2013 by jhubijn*

**math**

If a boat can travel on the lake at 15 miles per hour, and it took 25 minutes to cross the lake, how many miles it took to cross the lake/

*January 19, 2011 by Timmy Adams*

**Math**

Jan, Mya, and Sara ran a total of 64 miles. Jan and Maya ran the same amount and Sara ran 8 less then Maya. How many miles did Sara run?

*April 4, 2012 by Jackie*

**math**

A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)

*October 4, 2012 by ash*

**algebra**

A train leaves the station at 9:00 pm traveling east at 36 miles per hour. A second train leaves the station at 10:00 pm traveling west at 42 miles per hour. At what time will both trains have traveled the same distance? I need help solving it :)

*October 4, 2012 by ash*

**history**

What was the main result of the invention of the Clermont in 1807? This steamboat built by Robert Fulton helped speed up industrialization and increase interest in canal and river transport. This passenger train built by Henry Ford provided immigrants an easier way to move ...

*April 15, 2016 by abby*

**Algebra**

How would you set up problem: your average rate traveling uphill was 2.2 kilometers per hour and average rate downhill was 3.3 kilometers per hour. If he spent a total of 12 hours hiking, how long was the trail?

*October 11, 2012 by Ellen P*

**math (statistics)**

Suppose you are looking for a job. You interview with a company that has 10 general employees each make $100 per day, 7 assistants each make $400 per day, 3 managers each make $900 per day, and the owner who makes $1900 per day. The interviewer tells you that the average ...

*January 23, 2012 by juan777*

**Precalc**

A vehicle has an engine that is connected directly to a gear box. In the highest gear, a 2 inch radius gear is turning a 14 inch diameter gear. This gear is connected to the drive shaft. The drive shaft attaches to a wheel and a tire that measures 2 and 1/3 feet in diameter. ...

*February 10, 2014 by John*

**Precalculus**

A vehicle has an engine that is connected directly to a gear box. In the highest gear, a 2 inch radius gear is turning a 14 inch diameter gear. This gear is connected to the drive shaft. The drive shaft attaches to a wheel and a tire that measures 2 and 1/3 feet in diameter. ...

*September 14, 2015 by Heather*

**math**

6c=___pt Can someone show me steps please? You look up the conversion factor. There are two ways it can look; i.e., 2 cups = 1 pint OR 1 pint = 2 cups. Here is the way to do ALL conversions. ??pts = what you are given x conversion factor. ??pts = 6 cups x factor. So how do we ...

*November 30, 2006 by brooke*

**algebra**

Her average rate traveling uphill was 1.8 kilometers per hour and her average rate down hill was 4.2 kilometers per hour. If she spent a total of 16 hours hiking, how long was the trail?

*October 25, 2011 by Anonymous*

**algebra**

Which of the following is the most appropriate unit to describe the time you can drive a car based on the amount of gas? Minutes per gallon, because the independent quantity is the gallons Minutes per gallon, because the independent quantity is the minutes Gallons per minute, ...

*September 3, 2015 by oscar*

**Math**

A train is 1 mile long and is going through a tunnel a mile long, if the train is going 15 miles per hour, how long will it take 4 the train to get completley through the tunnel?

*August 27, 2007 by Lindsey*

**Algebra**

You drive 129 miles along a scenic highway and then take a 29-mile bike ride. Your driving rate is 4 times your cycling rate. Suppose you have no more than a total of 5 hours for driving and cycling. Let x represent your cycling rate in miles per hour. Write a rational ...

*November 16, 2015 by Sara*

**algebra**

a van moves with a constant speed of 40 miles per hour. How far can it travel in 2 hours?

*December 22, 2014 by brea*

**Math**

if a bullet travels at 645.0m/s, what is its speed in miles per hour? can you please show me how to solve this?

*September 10, 2015 by Alex*

**Math**

Terrance is traveling at a speed of 55 miles per hour. At this rate, how far will he travel in 2.3 hours?

*April 2, 2016 by Lily*

**math**

A boat traveling downstream a distance of 39 miles then came right back.If the speed of the current was 12 mph and the total trip took 4 hours 20 minutes,find the average speed of the boat relative to the water.

*February 1, 2014 by russ*

**physics**

Suzanne bikes 3 km to school every day. It takes her 20 minutes because she always has to stop at a traffic light. What is her average speed? A. 0.15 km/s B. 3 m/s C. 6.7 km/minute D. 9 km/h i keep picking A and C and getting this wrong. i know this is the formula: s = d/t but...

*September 13, 2014 by forrest*

**algebra**

train A and B are traveling in the same direction on parallel tracks. train A is going 80 miles per hour train B is going 84 miles per hour. train A past a station at 2:15 am train B passes at 2:45 am what time will train B catch train A

*October 21, 2010 by brian*

**trig**

A ship is headed due north at a constant 20 miles per hour. Because of the ocean current, the true course of the ship is 15°. If the currents are a constant 18 miles per hour, in what direction are the currents running? (Enter your answers as a comma-separated list. Round your...

*November 16, 2012 by janice*

**math**

A hot-air balloon, headed due east at an average speed of 15 miles per hour and at a constant altitude of 100 feet, passes over an intersection. Find an ex[ression for the distance d (measured in feet) from ballon to the intersection t seconds later. 1'000 FEET HIGH

*January 24, 2007 by John*

**precalculus**

Gloria is planning to ride her bicycle near the transmitter of a radio station. She will be riding from a point 10 miles due east of the transmitter on a straight road to a point 40 miles west and 10 miles north of the transmitter. She has a radio on her bicycle which can pick...

*June 10, 2013 by Anonymous*

**Math help**

d=0.005s^2+0.2s where d is the stopping distance in meter and s is the speed in km per hour. use the formula to find the stopping distance when a car is travelling at 70km per hour. my answer is 38.5 is that right.

*June 18, 2010 by Tim*

**math,help**

Also, can someone set this problem up into equations so i can solve.thanks A plane took 1 hour longer to travel 560 miles on the first portion of a flight than it took to fly 480 miles on the second portion. If the speed was the same for each portion, what was the flying time ...

*April 20, 2007 by jasmine20*

**Intermediate Algebra**

I am rowing on a river between two cities that are 19 miles apart. When going downstream, I make the journey in .76 hour(s). When I return upstream, it takes me 2.11 hour(s). What is the current of the river? what is the speed I would row in still water?

*March 8, 2016 by Jaunice*

**algebra 1**

a tortoise can travel 10 cm per second. what is the tortoise's speed in feet per hour? an 18,000 gallon pool takes approximately 40 hours to fill. what is this rate in pints per mintue. a tub can drain 24 gallons of water in 5 minutes . what is this rate in cups per second? i...

*September 9, 2015 by sahsa to reiny*

**geometry**

Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?

*November 4, 2010 by Rac*

**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 15, 2012 by Ashley*

**help!!!!!!!! Physics**

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 listed in kilometers per hour. What is...

*September 29, 2013 by Mary*

**Plane Trigometry**

You observe a plane approaching overhead and assume that its speed is 550 miles per hour. The angle of elevation of the plane is 16 degrees at one time and 57 degrees one minute later. Approximate the altitude of the plane.

*February 14, 2013 by Horum*

**Mileage/graph**

I tried this and needed to graph. But, I want to find out what I did incorrect. Suppose that a car rental agency gave you the following choices. Option A: $30 per day plus 40 cents per mile. Option B: flat $50 per day (a) Write equations for cost per day c for options A and B...

*January 23, 2012 by Algebra88*

**Math**

You invent a new system to make excellent racing tires for the Indianapolis 500/ Your tires are good for an average of 105 miles, with a standard deviation of 7.5 miles. What is the probability that one of your tires can go for at least 44 laps? What is the probability that ...

*July 10, 2012 by Lindsey*

**math**

Renting a truck costs $55.00 per day and $0.38 per mile when the driver goes beyond the 40 free miles allotted. How much would Samantha pay when renting the truck for 2 days and driving a total of 94 miles?

*August 14, 2016 by bird*

**physics wave**

A) Show that the average rate with which energy is transported along a cord by a mechnical wave of frequency f and amplitude D is: P(average) = 2(pi^2)u v(f^2)(D^2) v is speed of the wave u is the mass per unit length (M/L) B) If the cord is under a tension Ft =100 N and has ...

*May 1, 2008 by Anonymous*

**physics**

Student throws a baseball at a large gong 79 miles away and hears the sound of gong 2.63333 seconds later. The speed of sound in air is 330 miles per second. What was the average speed of baseball on its way to gong ?

*September 3, 2014 by Megan*

**10th grade**

Two ships leave a harbor at the same time, traveling on courses that have an angle of 140 degrees between them. If the first ship travels at 26 miles per hour and the second ship travels at 34 miles per hour, how far apart are the two ships after 3 hours?

*November 4, 2010 by Rac*

**Business **

At an activity level of 8,800 units, Pember Corporation's total variable cost is $146,520 and its total fixed cost is $219,296. For the activity level of 8,900 units, compute the following values. Required: A. The total variable cost B. The total cost C. The average variable ...

*December 29, 2015 by Victoria*

**algebra**

A rental truck costs $50 plus $0.40 per mile. Write an equation that gives the cost of driving the truck x miles Use the intersection of graphs method to determine the number of miles that the truck is driven if the rental cost is $70.

*February 13, 2016 by Dee*

**math**

car rental is 36.00 day, 100 miles free for each day of rental plus .20 per mile for each mile over allowance and i went 450 miles total how much is total for rental car

*July 4, 2015 by julie lockhart*

**Algebra II**

A runner completes a 16 mile trip, running 8 miles uphill and 8 miles downhill in a total of 4 hours, if his uphill speed is 3 mph slower than his downhill speed, find his downhill speed.

*November 15, 2012 by John*

**College math**

A planehas 7 hrs. to reach a target and come back to base. it flies out to the target at 480 miles per hr. and returns on the same route at 640 miles per hour. how many miles from the base is the target?

*January 20, 2009 by Kim*

**calculus**

Suppose the function G(t) represents a test grade (out of 100 points) as a function of hours studied. If G(t)=-0.046t^3+0.915t^2+38.005 points, what is (dG/dt)when t=4? Round your answer to the nearest point per hour. a. 50 points per hour b. 3 points per hour c. 5 points per ...

*September 20, 2011 by Roger*

**math**

josh ran for 56 minutes and walked for 16 minutes. What is the ration of the number of minutes ran to the number of minutes walked?

*November 1, 2015 by sam*

**Math**

Two trains are travelling on parallel tracks both going from station A to station B.Train 1 leaves at 8 am, at 65 miles per hour. Train 2 leaves at 10 am, at 90 miles per hour. At what time will train 2 catch up to train 1?

*July 29, 2014 by Anonymous*

**Math**

*not multiple choice* u^-3 = 1/125 y - 1 = 4y - 2/3 * not sure how to do this what is the y intercept of the line? y= -3x - 5 * my answer is 5 when 40 is added to the number miles she ran last week..the result is the same as adding 10 to 4 times the number she ran last week...

*December 17, 2014 by Anonymous*

**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**

I need help.. If the train contained 42 gallons of ice cream at the tempurature of thrity two degrees and the train ran at 12 miles per hour and the train starts from Los Angeles an was making a stop at Phillipines. If the country of Phillipines demand the ice cream came at 12...

*April 3, 2007 by Kristine*

**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**

The tortoise can walk 3/5 of a mile in 1/2 of an hour. How many miles can he walk in 1 hour?

*November 30, 2015 by Dalton*

**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*

**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*

**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**

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*

**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*

**Business Mathematics**

Taxi fare from an airport to a nearby town is $0.80 per mile driven, plus $2 for tolls. Let y represent the lare and r the miles driven on one trip. write the equation for y in terms of r. Find the fare when the distance driven is 17 miles.

*June 7, 2016 by Bithy*

**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**

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*

**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*

**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!*

**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*

**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**

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!*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**english**

A few minutes later he bolts suddenly into the woods, achieving full speed, almost forty miles per hour, for forty or fifty yards before he begins to skid, to lunge at a lodgepole pine cone. He trots away with it, his head erect, tail erect, his hips slightly to one side and ...

*September 28, 2016 by jas*

**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**

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*

**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*

**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*

**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*

**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!*

**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**

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*