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1. math

   April is training for a marathon by running no less than 55 km per week. She runs at an average rate of 10 km per hour. What is the minimum number of hours, h, she should run? 10h ≥ 55; h ≥ 5.5; 5.5 hours 10h ≤ 55; h ≤

2. 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

3. 6th math

   It took 3.5 hours for an airplane traveling at a constant speed of 550 miles per hour to reach its destination. What distance did the airplane travel until it reached its destination? What????

4. 9th grade math

   can i have some simple help with this rather long math problem? Two freight trucks are traveling to the same destination, and each are traveling at a constant speed. Truck A is 187 miles away from its destination at 9 a.m., one

1. Math

   Q. Sidney flew in an airplane five times during her vacation. The flights overaged 2 hours 28 minutes long. The lengths of her first four flights were 2 hours 10 minutes,3 hours 20 minutes,1 hour 15 minutes,and 2 hours 40 minutes.

2. Math

   The circle graph below shows the number of hours per week of college students spend studying each subject of a college court curriculum art 10 hours PE six hours math nine our English five hours history 13 hours approximately what

3. math

   write a unit rate for the situation. round to the nearest hundredth if necessary traveling 216 miles in 5 hours A( 54 miles/hours B( 39.27 miles/hours C( 43.2 miles/hours D( 0.4 miles/hours

4. Math

   Susie spent 4 1/4 hours on Monday and 3 5/8 hours on Tuesday working on a history project. About how long did she spend working on the project? a. 1 hour b. 7 hours c. 8 hours d. 9 hours Answer: 8 hours I first found the common

1. Calculus (Derivatives)

   A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T (in °F) of the lasagna is given by the function T(t) = e^(4.86753 - t) + 70, where t is

2. math

   1 . the cost in dollars of a field is 64+14n , where n is in the number of people attending . what is the cost for the 48 people ? A. $736 B. $126** C. $896 D. $910 2. Suppose you are driving to your vacation destination . you are

3. Math

   Suppose you are driving to visit a friend who lives far away. You are driving at an average rate of 55 miles per hour. You must drive a total of 295 miles. If you have already driven 20 miles, how long will it take you to reach

4. Math

   How many 7 digit even numbers can be formed using all of the digits 0,1,1,2,3,4? The answer is 1320. I tried 7!/2! but I know its supposed to be even, so it's not right to do 2!. How do I get to 1320?

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