Question

On a 210-mile trip, Cameron drove at an average speed of 60 miles per hour for the first x hours. He then

Answer 1

Answer:

$y = 3$

Step-by-step explanation:

Given

Trip = 250 miles

Speed for first x hours = 60 miles/hour

Speed for next y hours = 50 miles/hour

x = 1

Required

Find y

To solve this question, we'll make use of:

$Distance = Speed * Time$

For x hours:

$Distance = 60miles/hour * x$

Substitute 1 hour for x

$Distance = 60\ miles/hour * 1\hour$

$Distance = 60\ mile$

For y hours:

$Distance = 50\ miles/hour * y\ hours$

$Distance = 50y\ miles$

Given that total distance is 210 miles;

We have that:

$Total Distance = 60\ miles + 50y\ miles$

$210\ miles = 60\ miles + 50y\ miles$

Solve for y

$210 - 60 = 50y$

$150 = 50y$

$y = \frac{150}{50}$

$y = 3$

Hence,

y = 3 hours