Posted by M. on Thursday, January 7, 2010 at 7:40pm.
? reads,"7th place driver had a time that was 18.5 min slower thatn the driver ahead of him(2hr 43min 7sec), what was his time in hrs, min & sec.? What was the diff. btwn 1st and 7th? Calculate the winner's time in hrs. only(answer correct to 3 decimal places). Winners time: 2hrs. 37min. Several more questions like these?
Thanks!

7th grade MATH  PsyDAG, Friday, January 8, 2010 at 2:19pm
Each minute has 60 seconds.
18.5 minutes = 18 minutes 30 seconds
Add that to 2 hr 43 min 7 seconds for the driver ahead of him, since his time (7th) will be greater.
Subtract 2 hr 37 min from the previous answer for difference between 1st and 7th.
Winner's time = 2 hours and 37 min. There are 60 minutes in an hour. Get minutes as fraction of hour and convert to a decimal.
See if these principles will help you with the other questions.

7th grade MATH  zabeion, Monday, January 7, 2013 at 10:27pm
75 seconds:2 minutes, as a fraction
Answer This Question
Related Questions
 Phisic  A driver runs to the south at 20 m / s for 3 min, then turns west and ...
 physics  A driver runs to the south at 20 m / s for 3 min, then turns west and ...
 7th grade  Hi im a 7th grader and there is alot of book reports and homework in...
 Good Reads? 6th and 7th grade  Please. I need a list of Nonfiction books ...
 math riddles for 7th grade  what was the truck driver doing w/a load of hogs
 math  what is the answer to 8,580 words in 2 h 45 min in unit rates for 7th ...
 math  can someone please help me, Rob is going to college in Oklahoma which is ...
 physics  The speed limit in a school zone is 40.0 km/hr. A driver traveling at ...
 7th grade math  Each of the first 4 pit stops a racecar driver makes loses ten ...
 Math  At Jefferson School, both 6th grade & 7th grade classes take a math test...
More Related Questions