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in 1920, the record for a certain race was 46.8 sec.  TOPIC_SOLVED

in 1920, the record for a certain race was 46.8 sec. in 1980, it was 45.6 sec. Let R(t)=the record in the race and t=the number of years since 1920. a) find a linear function that fits the data b) use that function to predict the record in 2003 and in 2006 c) find the year when the record will be 44...
by jonesbetty
on Mon Nov 07, 2011 10:08 pm
 
Forum: Intermediate Algebra
Topic: in 1920, the record for a certain race was 46.8 sec.
Replies: 1
Views: 733

gas prices  TOPIC_SOLVED

imagine you are at a gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation C(g)=3.03(g). a)what does the number 3.03 represent b) find C(2) c) find C(9) d) for the average motorist,name one value for g that would...
by jonesbetty
on Tue Nov 08, 2011 8:44 pm
 
Forum: Intermediate Algebra
Topic: gas prices
Replies: 3
Views: 1439

linear equations of gas prices  TOPIC_SOLVED

1) the linear equation y=0.15x+0.79 represents an estimate of the average cost of gas for year x starting in 1997. The year 1997 would be represented by x=1, for example, because it is the first year in the study. Similarly, 2005 would be year 9 or x=9 a)what year would be represented by x=4 b) what...
by jonesbetty
on Tue Nov 08, 2011 8:57 pm
 
Forum: Intermediate Algebra
Topic: linear equations of gas prices
Replies: 1
Views: 1391

Re: gas prices  TOPIC_SOLVED

i am 65 years old and very familiar with gas tanks i did not post to to ridiculed i an simply trying to relearn algebra to help my niece to learn and pass her course i cannot afford a tutor for her
by jonesbetty
on Wed Nov 09, 2011 1:09 pm
 
Forum: Intermediate Algebra
Topic: gas prices
Replies: 3
Views: 1439

word prob.: canoeist travels 44 miles at a certain speed.  TOPIC_SOLVED

During the first part of a trip, a canoeist travels 44 miles at a certain speed. The canoeist travels 2 miles on the second part of the trip at a speed 5mph slower. the total time for the trip is 4 hrs. what was the speed on each part of the trip
by jonesbetty
on Tue Jan 03, 2012 1:36 am
 
Forum: Intermediate Algebra
Topic: word prob.: canoeist travels 44 miles at a certain speed.
Replies: 1
Views: 851

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