erinharrington15
06.07.2019 •
Mathematics
Aroad trip of 400 miles require a total of 8 hours to drive. for the first portion of the trip, an average speed of 63 miles per hour was maintained; on the last portion of the trip, the average speed was only 443 miles per hour due to highway construction project. how much time, in hours, to the nearest tenth of an hour, was spent driving at each of the two speeds, and what was the total time for the entire trip?
Solved
Show answers
More tips
- W Work and Career Where can you learn to be a flight attendant?...
- C Cities and Countries What time does the Metro open in Moscow?...
- S Style and Beauty How to Get Rid of Under Eye Bruises?...
- F Food and Cooking How to Calculate the Gender of Your Child with Blood?...
- C Computers and Internet IMHO: What is it, why is it important, and how to use it?...
- H Health and Medicine Effective Ways to Treat Colic in Infants...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- S Style and Beauty 5 Tips for Choosing the Best Ugg Boots...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- C Computers and Internet iPhone SMS Delivery Report: How to Set It Up...
Answers on questions: Mathematics
- M Mathematics Which exponent could make this a true statement? 10x=125,900 Answer choices: [A] 1.25 [B] 5.1 [C] 12,590 [D] It is not possible to solve this equation....
- M Mathematics Last year Reuben opened an investment account with 7600. At the end of the year the amount decreased by 21.5. How much is this decreased in dollars and how much was in his account...
- M Mathematics In a crash test, a car is driven into a solid wall at a speed of 35 mph.(Figure 1) shows the car s acceleration as it crashes into the wall....
- M Mathematics If 1= 2 what conclusions can you draw about m 3 and m 4...
- M Mathematics 1. (-5)(6)(-7) =... 2. On Monday Luke’s business lost $15. On Tuesday it made $8. On Wednesday it broke even. What is the total profit of loss during those 3 days? 3. If a^2 20 then...
- M Mathematics I need help with this EXTREMELY hard math equation....
- M Mathematics ....................................
- M Mathematics A company makes 3,000 liters of juice per day. Let y represent the total amount of juice, in liters, made in x days. An equation representing this situation is entered into a graphing...
- M Mathematics The lengths of the sides of a trapezoid are represented by 24- 3.92-5,32-2, and 52 - 9. What is the perimeter of the trapezoid expressed as a binomial in terms of x...
- M Mathematics What is (5x2 + 2x - 3) - (2x2 – 3x + 7) expressed as a trinomial?...
Ответ:
Ответ:
to add: align your decimal and add just like you would regualar 2 or more digit numbers
To subtract: Write down the two numbers, one under the other, with the decimal points lined up. Add zeros so the numbers have the same length. Then subtract normally, remembering to put the decimal point in the answer.
To multiply: Multiply normally, ignoring the decimal points. Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined