3. In two hours, Allice drove her car the same distance that Gene drove his car in 2 hours and 30 minutes. Find the speed of Gene's car given that he drove 10 mph slower than Alice drove.

4. A cruiser and a submarine leave the same port at the same time and travel eastward. The cruiser average 18 mph and the submarien 42 mph. For what period of time will the cruiser be 12 miles or less behind the submarine?

6. The numerator of a fraction is 5 less than the denominator. If the numerator were increased by 3 and the denominator increased by 4, the resulting fraction would be 1/2. Find the original fraction.

Solution Preview

3. Suppose the speed of Gene's car is x mph. Since he drove 10 mph slower than Alice drove, then the speed of Alice's car is x+10 mph. So Alice drove 2(x+10) miles in two hours and Gene drove 2.5x miles in 2 hours and 30 minutes. From the condition, we get the equation
2(x+10)=2.5x, then 2x+20=2.5x, then 0.5x=20, then ...

...Word problem with time and distance (Please be descriptive ... 1. Calculate distance in inches that a bicyclist traveling ... this question, we have the speed in miles ...

Important information about Several algebra Word problems. ... he drove for 6 hours at the same average speed. Write a rational expression for his distance on. 90. ...

... Rational expressions word problems are analyzed in a Microsoft word attachment ... Solution: Speed = distance /time = 800 miles/ x hour = 800/x and the units are ...

... a clear perspective of how to solve word problems related to ... opposite direction of the wind, its resultant speed is& ... takes 9 hours to travel a distance of 7776 ...

... Algebra word problems for fun! ... time from Dallas to Orlande = x hours Average speed of flight ... to Orlande = 307 miles per hour Therefore, distance covered by the ...

... The first is in MS Word format, while the other is ... We assume that in this context, the speed of light is ... The distance the sound traveled is ct where c is the ...

9 Physics word problems: Magnitude of compass needle, magnet ... a particular radioactive source have a speed of 1.85 x ... Two parallel wires spaced a distance d apart ...

Graphing and Algebra Word Problems. ... 600 minutes Suppose after x minutes of long distance calls the ... 30 5. Answer: 20 km per hour for the cyclist's speed in still ...

... between my Word and your word processor. ... state the Hubble relationship in words, and quantify ... The distance = (speed of recession) / (Hubble constant) = 250 Mpc. ...

... to set up and solve the equations for the algebra word problem. ... x mi/h, then for returning his speed is x ... the destination when went there, so the distance is 5x ...