BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1, Problem 82RE
To determine

To calculate: The time at which Anthony and Helen pass by each other.

Expert Solution

Answer to Problem 82RE

The time at which they pass by each other is 4:00PM

Explanation of Solution

Given information:

Time at which Anthony leaves Kingstown= 2:00 PM

Speed of Anthony = 45 mi/h

Speed of Helen = 40 mi/h

Formula Used: Distance =Speed *Time

Calculation:

Let us set Kingston having travelled 0 miles and Quenneville as having travelled 160 miles

Let the distance travelled by Anthony = x

Let the distance travelled by Helen= y

  x+ y = 160

Let Anthony’s time = t

Then Helen’s time = t − 0.25

  45t +40t 10 = 160

  t=1.75

i.e 1 hour and 45 minutes

Since,

  + y = 160

  45t +40t 10 = 160

  t=1.75

i.e 1 hour and 45 minutes

  2:15+1:45=4PM

Have a homework question?

Subscribe to bartleby learn! Ask subject matter experts 30 homework questions each month. Plus, you’ll have access to millions of step-by-step textbook answers!