# Kristi jogged for 3/5 of an hour, swam for1/2 an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise?

8,186 questions
1. ## math

Kristi jogged for 3/5 of an hour, swam for1/2 an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise?

asked by annonoumus on September 12, 2008
2. ## math/fractions

Ok one more question. I had this problem: Kristi jogged for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise? I took it to mean you had to add all the fractions together. So I found the lcd of all

asked by Mary on June 11, 2008
3. ## math115

Kristi jogged for 1/4 of an hour swam for 2/3 of an hour and rode her bike for 4/5 of an hour how long did she exercise? answer 1 hr 43 min Find the best buy on sugar (1LB is 16oz. )1 lb for \$1.29, 12oz for \$1.09 2 lbs 4 oz for \$3.09 10 oz for \$.99 answer

asked by melody on October 20, 2009
4. ## math

please check and see if my answers are correct if not let me know so i can redo these and find where i messed up 1. divid by moving the decimal point 27.3 dived 10^5 my answer .000273 2.Jon spent 1/3 of his study time doing math homework and 2/7 preparing

asked by larry on January 5, 2007
5. ## Math - double check me

Kristi joggfed for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise? a. 7/11 b. 9/40 c. 1 17/20 d. 1 7/20 answer: c Juan owned 3/4 of a family business. He sold 1/3 of the business to his aunt.

asked by Kim on March 28, 2008
6. ## math

please check these 1.kristi jogged for 3/5 of an hour, swam 1/2 of an hour, rode her bike for 1/4 hr. how long did she exercise/=1 17/20 2.victor owned 5/6 of a family buisness, he sold 2/7 of the buisness,what portion doe she still own?=23/42 3.subtract

asked by p on September 18, 2009
7. ## math

1. kristi jogged for 3/5 of an hr,swam 1/2 of an hr, rode her bike 3/4 of an hr how long did she exercise?=1 7/20 2.the intersest rate on an equity line of credit was 7 7/8% last month this month the interset rate is 10 3/2% how many percentage points has

asked by p on September 19, 2009
8. ## Math

One week, Mrs. Peterson went to her health club on Monday, Wednesday, and Friday. Each day she went to the club, she jogged on the treadmill for 3/5 hour, lifted weights for 1/4 hour, and then cooled down by stretching for 1/4 hour. On Saturday, she rode

asked by Megan on April 4, 2013
9. ## math

amara rode her bicycle 8 miles in 0.5 hours.what was the average rate that she rode her bicycle in miles per hour?

asked by jen on September 29, 2016
10. ## Math

Greg rode his bicycle at a constant speed of 20 miles per hour. Plot points on the graph to present the distances Greg rode after 1,2,3, and 4 hours (1 hour = 20 miles, 2 hours = 40, 3 hours = 60, 4 hours = 80 miles). Write an equation to represent the

asked by Harper on April 25, 2016
11. ## math

Rosy has been jogging for 3 weeks. In the first week She jogged 3 days each for 4/6 of an hour. During week 2 she jogged for 3/4 of an hour on 2 days. In week 3 she jogged 4 days each for 3/5 of an hour . WRITE one expression that would show the total time

asked by sid on March 24, 2014
12. ## Math

Joseph rode his bicycle for 10 miles. Then he increased his speed to an average of 15 miles per hour for the next h hours. Write an equation for the total distance he rode. thanks in advance!

asked by anonymous on April 20, 2009
13. ## Math

Greg rode his bicycle at a constant speed of 20 miles per hour. Plot points on the graph to represents the distances Greg rode after 1, 2, 3, and 4 hours (1 hour= 20 miles, 2 hours= 40 miles, 3 hours= 60 miles, 4 hours= 80 hours) Then write an equation to

asked by Lucifer Albernathy on April 25, 2016
14. ## algebra

Gemma recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was 16 miles per hour faster than on her way home. If Gemma spent a total of 1 hour bicycling, find the two rates.

asked by Derek on May 2, 2016
15. ## College Algebra

Jen recently rode her bicycle to visit her friend who lives 12 miles away. On her way there, her average speed was 10 miles per hour faster than on her way home. If Jen spent a total of 1 hour bicycling, find the two rates.

asked by Jenn on September 30, 2014
16. ## Mathematics

Michelle rode her bicycle from her house to her school at an average speed of 8 miles per hour (mph). Later that day, she rode from school back home along the same route, at an average speed of 12 mph. If the round trip took her 1 hour, how many miles long

asked by Ryomasa on August 30, 2007

Milaela is competing in a race in which she both runs and rides a bicycle. She runs 5 kilometers in 0.5 hour and rides her bicycle 20 kilometers in 0.8 hour. Part A. At the given, how many kilometers can Mikaela run in 1 hour? part B. At the given rate,

asked by Iana on November 11, 2014
18. ## Pre-Algebra

Courtnytravels south on her bicycle riding 8 miles per hour. One hour later, her friend Horacio starts riding his bicycle from the same location. If he travels south at 10 miles per hour, how long will it take him to catch Courtney?

asked by Ola on August 18, 2010
19. ## math

in a bike race, ramit and keith started at the same time abd rode with constant speeds. Ramit rode 30 miles per hour, and keith rode at 35 miles per hour. If ramit crossed the finish line 10 minutes after keith, how many miles long was the race?

asked by kel on August 12, 2011
20. ## college algebra

Solve the problem. A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his rate when he was riding a bicycle was 10 miles per hour faster than his rate walking, what was each rate?

asked by megan on February 25, 2009
21. ## 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

asked by Anonymous on January 30, 2012
22. ## math

Melba rode her bike 7 / 8 mile in 1/ 4 hour what is the unit rate in miles per hour

asked by Gracie on January 20, 2015
23. ## stuff

When Morganâ€™s dad returned from the store, he went for a jog. He jogged for 1 hour and 15 minutes at a pace of 4.8 miles per hour. How far did he jog?

asked by Anonymous on January 13, 2017
24. ## math

jim began a 92​-mile bicycle trip to build up stamina for a triathlon competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 4 hours. If Jim walks at a rate of 3 miles per hour and rides at 35

asked by Delyla Velasco on October 3, 2018
25. ## math

jim began a 131 mile bicycle trip to build up stamina for a triathlete competetion.unfortunately his bicycle chain broke, so he finished the trip walking. the whole trip took 4 hours. if jim walks at a rate of 3 miles per hour and rides at 37 miles per

asked by bashi on September 21, 2012
26. ## ALGEBRA

Jim began a 281​-mile bicycle trip to build up stamina for a triathlete competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 7 hours. If Jim walks at a rate of 3 miles per hour and rides at 43

asked by KIERSTEN on August 22, 2016
27. ## math

please explain the steps: Jim Williamson began a 96-mile bicycle trip to build up stamina for a triathlete competition.Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 6 hours.If Jim walks at a rate of 4 miles

asked by micah on April 14, 2012
28. ## algebra

Yesterday Lucy walked 2 hours and jogged 1/2 hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she

asked by jordan on October 15, 2009
29. ## algebra...redo.

Yesterday Lucy walked 2 hours and jogged 1/2 hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she

asked by jordan on October 15, 2009

Yesterday Lucy walked 2 hours and 1/2 jogged hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she

asked by jordan on October 15, 2009
31. ## earth science

How fast do the fastest tsunami waves travel in the deep ocean? A. About 40 miles per hour (mph) or (70 km/hour) B. About 100 mph (170 km/hour) C. About 400 mph (700 km/hour) D. About 1000 mph (1700 km/hour) E. About 4000 mph (7000 km/hour)

asked by alz on November 12, 2018
32. ## Math

Please solve these word problem. During a triathlon, Sharon swam 1/4 of the total route and cycled 3/5 of the remaining route. She jogged the rest of the route.If she jogged 3600 m, find the total distance of the route.

asked by Tabassum sultana on January 26, 2019
33. ## Trigonometry- Help!

After one hour in flight, an airplane is located 200 miles north and 300 miles west of the airport. What is the magnitude of the plane's velocity? Round your answer to the nearest mile per hour. a) 22 miles per hour b) 128 miles per hour c )256 miles per

asked by Ellie on December 17, 2015
34. ## math

Yesterday Lucy walked 2 hours and jogged 1/2 hour and covered 6.25 miles. Today she walked for 3 hours and jogged for 1 hour and covered 10.25 miles. Assuming a constant walking rate and a constant jogging rate, how fast did she walk and how fast did she

35. ## Math

How much time (in hour)does the earth take for1 rotation ? How much time (in hour) would the earth take for 123 rotation?

asked by DEVIDAS on August 16, 2017
36. ## Mathematics

The triathlete swam 2 miles in 56 minutes. Then, he rode his bicycle 100 miles in 5 hours. Finally, he ran 20 miles in 106 minutes. How many minutes did it take him to complete the course? During which portion of the race did he have the greatest average

asked by Rose on October 4, 2017
37. ## math

Luis rides his bicycle 3:4 of a mike in 5 minutes,or 1:12 hour,along the bike trail.Assuming he rides at a constant rate,what is his speed,in miles per hour?

asked by keith on November 7, 2016
38. ## math/ pre algebra

Lydia rode 243 miles in a three day bike trip. On the first day, Lydia rode 67 miles. On the second day, she rode 92 miles. How many miles per hour did she average on the third day if she rode for 7 hours?

asked by neftali on November 25, 2015
39. ## Math

Fifteen Grade 2 children rode bicycle to school. Seventeen Grade 3 children rode bicycle to school. How many children in Grades 2and3 rode bicycles to school?

asked by Alex on December 3, 2015
40. ## Math

Brian rode his motorbike for 3 hours at 50 miles per hour and then rode the next 200 miles in 5 hours.What is the total distance he traveled? a)150 b)190 c)250 d)350 e)1150

asked by Grace on August 6, 2012
41. ## Science

Which is the closest to the speed of sound in air? A. 7miles per hour B. 70miles per hour C. 700miles per hour D. 7000miles per hour C?

asked by Derrick on March 24, 2012
42. ## Math

A bicycle wheel, diameter 56 cm, is making 45 revolutions in every 10 seconds. At what speed, in kilometer per hour. Is the bicycle travelling?

asked by Niraj Kasyap on December 26, 2012
43. ## 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

asked by Roger on September 20, 2011
44. ## Math

Jack is learning to ride a bicycle. In his first try, he rode for 1/100mile. The second time he rode for 5/100 mile. In the next two tries, he rode successfully for 2/10 mile and lo 4/10 mile Part A What is the total distance he rode the bike in four

asked by Marina on April 25, 2017
45. ## math

a wheel of a bicycle has a diameter of 70cm and is rotating at the rate of 200 revolutions per minute calculate the speed of the bicycle in km/hour

asked by sashey on August 15, 2013
46. ## math

Enrique charges \$5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour.

asked by suri on March 28, 2014
47. ## math

Enrique charges \$5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour.

asked by John on March 28, 2014
48. ## Algebra 1

Shelly hopped onto her bicycle and pedaled to the park at 14 miles per hour. Then she whizzed back at 20 miles per hour. If the total trip took 3 2/5 hours how far was it to the park?

asked by Kinda Dorky on April 9, 2018
49. ## Math

Luke rode his bicycle 2/5 of a mile from his house to the library.He then rode 1/2 of a mile from the library to the mall.Sketch a visual model to find the total distance that Luke rode.

asked by Anonymous on April 22, 2014
50. ## maths

luke rode his bicycle 2/5 of a mile from his house to the library. He then rode 1/2 of a mile from the library to the mall. Sketch a visual model to find the total distance that luke rode

asked by pinks on April 21, 2014
51. ## math

Eve swam 80 laps of a swimming pool in one hour. What was the pace for each lap?

asked by Macy on November 1, 2015
52. ## High School Math

for the following write an equation and solve it. Terri and Nick rode their bikes toward each other starting from two towns 24 miles apart. Terri rode three miles per hour faster than Nick and they met in two hours. How fast did each person ride? I think I

asked by Mike N on September 16, 2008
53. ## math help

Enrique charges \$5 for every 1/5 hour he spends walking dogs. In the morning he walks Buttons for 2/5 hour, Bruno for 1/5 hour, and Pepper for 3/5 hour, Monday through Friday. On Saturdays he takes Mimi, Diva, and Coco to the dog park for 4/5 of an hour.

asked by kartik on March 28, 2014
54. ## matthematics

Fiona has a a job that pays \$7 an hour for a 40-hour work week and \$10 an hour for every hour of overtime that she works. If she works 43 hours, how much money will she make before any deductions are made?

asked by Justinne Lee on August 10, 2017
55. ## Earth Science

5.   Most tornadoes carry wind speeds that range from  A. 105 to 177 km per hour. B. 178 to 266 km per hour. C. 267 to 322 km per hour. D. 1 to 105 km per hour. A?

asked by Sarah on February 13, 2015
56. ## math 208

parking in a student lot cost 3.00 for the first half hour and 1.25 for each hour there after a partial hour is change the same as a full hour what is the longesr time that student can park

asked by Anonymous on September 14, 2015
57. ## algebra

Parking in a student cost \$3 for the first half hour and \$1.50 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lot for \$9?

asked by luis barreto on January 16, 2013
58. ## Math

Jennifer rode her bike to the store at a rate of 15 mph. She rode back home at a rate of 10 mph. How far is it to the store if the round trip takes an hour?

asked by Joe on April 19, 2015
59. ## Math

This is the question. In 1991, an American, Ann Trason, set a world record by running 100 km in 7hr,50min,09sec. What is the best estimate of her average speed? A.12 km per hour B.14 km per hour C.16 km per hour D.18 km per hour how do u figure this out?

asked by Meherin on February 25, 2009
60. ## math

Ali rode a bicycle from town A to town C through town B as follows.He rode from A to B a distance of 45 km in 3 hours and then rested for 1hr and 1/2 hr.From B he rode to C a distance of 20 km in 1hr and 1/2 hr. Find the average speed riding #Please guys

asked by kelvin on August 28, 2017
61. ## math

Ali rode a bicycle from town A to town C through town B as follows.He rode from A to B a distance of 45 km in 3 hours and then rested for 1hr and 1/2 hr.From B he rode to C a distance of 20 km in 1hr and 1/2 hr. Find the average speed riding #Please guys

asked by kelvin on August 29, 2017
62. ## English

Can you please check if this is correct? 1. Over the hill and past the bridge jogged a lady with her new dog. Subject: lady Verb: jogged Prepositional phrase: over that hill, past the bridge, with her new dog 2.) The swimmer dived off the board and swam

asked by Niniane on December 5, 2015
63. ## math

a bicycle rider left town at noon at traveled at a uniform rate of 15 miles an hour. at 2 pm the same day, a motorcycle rider left for the same place at a uniform rate 30 miles an hour higher. at what time did the motorcycle rider overtake the bicycle

asked by abby on November 7, 2010
64. ## Math

If you jog for half an hour everyday for nine days. Write an improper fraction that shows the total number of hours you jogged.

asked by Dylan on October 13, 2011
65. ## Math

If you jog for half an hour everyday for nine days. Write an improper fraction that shows the total number of hours you jogged.

asked by Dylan on October 13, 2011
66. ## Math

If you jog for half an hour everyday for nine days. Write an improper fraction that shows the total number of hours you jogged.

asked by Dylan on October 12, 2011
67. ## college algebra

In a certain gear, a bicycle tire with a diameter of 27 inches makes 3 complete revolution of the pedal.If a cyclist is pedaling at a rate of 100 revolutions per minute, find the speed of the bicycle in miles per hour?

asked by James on November 24, 2015
68. ## maths

A motorist travels 120 miles to his destionation at an average speed of 60 miles per hour and returns to the starting point at an average speed of 40 miles per hour.His average speed for the entire trip is 1. 53 miles per hour 2. 52 miles per hour 3. 50

asked by peter on August 13, 2014
69. ## Algebra

Parking in a student lot cost \$2 for the first half hour and \$1.25 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lot for \$9? Simplify your answer.

asked by Anonymous on August 24, 2012
70. ## Algebra

Parking in a student parking lot costs 2.00 for the first half hour and \$1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time a student can park for \$9.00? Show your work.

asked by Ruth on March 9, 2013
71. ## math

jeff jogged 5/6km while jon jogged 7/12km.who jogged longer bu how many kilometers?

asked by dan on September 27, 2017
72. ## math

jeff jogged 5/6km while jom jogged 7/12km.who jogged longer? by how many kilomteres?

asked by dan on September 27, 2017
73. ## Math

4.)Find the unit rate. Round to the nearest tenth, if necessary. 344 miles in 11 hours A.)344 Miles/Hour B.)3,784 Miles/Hour C.)0.03Miles/Hour D.)31.27 Miles/Hour Is My Anwser C.)0.03Miles/Hour? If not can you explain why? & if so Thank You

asked by YRN DJ on November 2, 2015
74. ## algebra

parking in a student lot cost \$1 for the first half hour and \$1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lot for \$9 what is the answer

asked by christina on July 28, 2012
75. ## MATH PLEASE im begging HELP!!!!!

What is 900 feet per day converted into yards per hour? A. 12.5 yards per hour B. 37.5 yards per hour C. 112.5 yards per hour D. 7200 yards per hour

asked by Wild on January 30, 2013
76. ## algerbra

parking in a student lot costs \$1 for the first half hour and \$1.25 for each hour there after. a partial hour is charged the same as a full hour what is the longest time that a student can park in this lot for \$7?

asked by Anonymous on November 16, 2012
77. ## Math

Parking in a student lot cost \$2.00 for the first half hour and \$1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lot for \$8.00.

asked by Susan on October 12, 2015
78. ## Math

Beth got a job painting dorm rooms at her college. At top speed, she could paint 5 identical rooms during one 6-hour shift. How long did she take to paint each room? A. 50 minutes B. 1 hour and 10 minutes C. 1 hour and 12 minutes D. 1 hour and 15 minutes

asked by Anonymous on February 3, 2014
79. ## Math (unit rates)

You jogged 11 kilometers at an average speed of 10 kilometers per hour. How long did you jog?

asked by princessleaya on November 24, 2017
80. ## math

You jogged 11 kilometers at an average speed of 10 kilometers per hour. How long did you jog? I need help please

asked by christian on February 20, 2018
81. ## Math

A woman rides her bicycle from her house to and from a lake. It takes her 1 1/2 hours to ride to the lake and 1 3/4 hours to ride back. She rides downhill at 12 kilometers per hour, on level ground at 8 kilometers per hour, and uphill at 6 kilometers per

asked by Bob on May 7, 2013
82. ## math

#please guys help me this question# Three people can wash clothes in 13 hour, 14 hour and 14 hour. If they started together at 8:30 am, at what time will they finish this work together?

asked by kelvin on July 7, 2018
83. ## intermediate algebra

You can travel 40 miles on a motorcycle in the same time that it takes to travel 15 miles on a bicycle. If your motorcycle's rate is 20 miles per hour faster than your bicycle's rate, find the speed of the motorcycle and bicycle. motorcycle = 32mph bicycle

asked by jennifer on November 6, 2008

Carolyn spent 3/4 of an hour on her math homework, 5/6 of an hour on history, and 5/12 of an hour on science. Which of the following is a true statement; a.)5/6

asked by Anonymous on February 15, 2010

Which of the following is a true statement, Carolyn spent 3/4 of an hour on her math homework, 5/6 of an hour on history, and 5/12 of an hour on science.

asked by Anonymous on February 15, 2010
86. ## algebra

To rent a canoe costs \$15 for the first hour and \$12 for each additional hour or fraction of an hour. Which point is NOT included in the graph of this step function?

asked by linda on April 6, 2018

Please only one answer for each question. For questions 1-3, identify the situation that each graph could represent. 1. A. the length of a necklace that you make at a rate of 10 cm per hour without taking a break. B. The height of a balloon as it rises,

asked by Clawdeen on March 4, 2018
88. ## MATH

Rate Problem: Mr. Stewart rode a distance of 12miles out into the country on a bicycle and returned on foot. His rate on the bicycle was 4 times his rate on foot. He spent 5 hours on the entire trip. Find the rate of walking and on the bicycle.

asked by Michi on October 23, 2007

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

asked by Mary J. on January 30, 2013

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

asked by Mary J. on January 30, 2013
91. ## Math - Algebra 2

A chemical compound evaporates in a predictable way. In the first hour 1/2 of the amoun in the jar at the beginning of the hour evaporates. In the second hour 1/3 of the amount in the jar at the beginning of the second hour evaporates. In the third hour

asked by AS on December 2, 2006
92. ## Algebra

Parking in a student lot cost \$1 for the first half hour and \$1.25 for each hour thereafter. A partial hour is charge the same as a full hour is charge the same as a full hour. What is the longest time that a student can park in this lot for \$9.

asked by Kia on August 1, 2012
93. ## 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. =

asked by Anonymous on April 13, 2007
94. ## algebra 1

lois rode her bike to visit a friend. She traveled at 10 miles an hour. While she was there it began to rain. Her friend drove her home at 25 miles per hour. Lois took 1.5 hours longer to go to a friends then to return home. How many hours did it take Lois

asked by scooby doo on March 25, 2008
95. ## 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.

asked by vincent on July 17, 2013
96. ## Math

Write the ratio as a unit rate 27 miles in 1/2 hour A:13.5 miles per hour B:44 miles per hour C:54 miles per hour D:56 miles per hour My answer is B

asked by Nashi Dragneel on November 16, 2017
97. ## Math- Multi-step word problems

A plane traveling from Phoenix to Washington, D.C with a tailwind of 20 miles per hour takes 3 hours. The return trip in the same wind, which is now a headwind, takes the same plane 3 hours and 12 minutes. What is the average speed of the plane in calm

asked by Kitty on October 1, 2014
98. ## math algebra

how would i do this problem elina and teresa raced on their bikes to the library after school. they both left at 3:00 pm and bicycled along the same trail elina rode at the speed of 12 miles an hour and teresa rode at the speed of 9 mph. elina got there

asked by bob on November 4, 2010
99. ## Algebra

Parking in a students lot cost \$1 for the first half hour and \$1.25 for each hour thereafter. A partial hour is charge the same as a full hour. What is the longest time that a student can park in this lot for \$7? The longest time is ? (simplify your