Sunday

December 21, 2014

December 21, 2014

Posted by **Apples** on Tuesday, July 22, 2014 at 8:20pm.

a) 46 mph

b) 50 mph

c) 53 mph

d) 55 mph

e) none of these answers

2) The oil burner in a certain house is used to heat the house and to heat the hot water. During the seven cold months when the house is heated, an average of 200 gallons of oil a month is used. In the remaining five months, when the house is not heated, a total of 200 gallons of oil is used. What percentage of the year's oil supply is required to heat water during these five months

a) 1/8%

b) 7%

c) 12 1/2%

d) 14%

e) none of these answers

- MATH -
**bobpursley**, Tuesday, July 22, 2014 at 9:00pm1. speed=distance/time=354/(16:30-09:50)

speed=354/(6hrs 40min)=354/(6.66)=

total oil used=7*200+200=1600 gal

water heating total=200(12/5)=480gal

fraction= (480/1600)= looks like e to me

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