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13A polar explorer is planning an expedition. He investigates three possible routes. (a) If he travels on route A, which is 800 km long, he expects to cover x km per day. Route B, which is the same distance as route A, has more difficult ice conditions and he would only expect to cover (x-5) km per day. Route C, which is 100 km longer than route A, has easier conditions and he would expect to cover (x+5) km per day. Write down an expression, in terms of x, for the number of days that he expects to take on route A,

13A polar explorer is planning an expedition. He investigates three possible routes. (a) If he travels on route A, which is 800 km long, he expects to cover x km per day. Route B, which is the same distance as route A, has more difficult ice conditions and he would only expect to cover (x-5) km per day. Route C, which is 100 km longer than route A, has easier conditions and he would expect to cover (x+5) km per day. Write down an expression, in terms of x, for the number of days that he expects to take on route A,

Algebra for College Students
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.CM: Cumulative Review Problem Set
Problem 114CM
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DI 13A polar explorer is planning an expedition. He investigates three possible routes. (a) If he travels on route A, which is 800 km long, he expects to cover x km per day. Route B, which is the same distance as route A, has more difficult ice conditions and he would only expect to cover (x-5) km per day. Route C, which is 100 km longer than route A, has easier conditions and he would expect to cover (x+5) km per day. Write down an expression, in terms of x, for the number of days that he expects to take on route A,
Transcribed Image Text:DI 13A polar explorer is planning an expedition. He investigates three possible routes. (a) If he travels on route A, which is 800 km long, he expects to cover x km per day. Route B, which is the same distance as route A, has more difficult ice conditions and he would only expect to cover (x-5) km per day. Route C, which is 100 km longer than route A, has easier conditions and he would expect to cover (x+5) km per day. Write down an expression, in terms of x, for the number of days that he expects to take on route A,
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