Joe is going to travel to Dallas. He lives 360 miles away and can average 60 miles per hour. Write a linear model that represents Joe's distance from Dallas, d(t), traveled as a function of time, t, in hours.

a) d(t) = 360 - 60t

Step-by-step explanation:

In this problem, the initial distance between Joe and Dallas is

d0 = 360 miles

Later, Joe travels at a speed of 60 miles/hour.

This means that the distance covered by Joe in a time t is

x(t) = 60t

where t is the time measured in hours.

However, Joe is moving towards Dallas: this means that the distance from Dallas is decreasing as time increases, therefore the distance is decreasing at a rate of

-60t

And therefore, the final expression of Joe's distance from Dallas is

d(t) = 360 - 60t

In fact, we notice that at t = 0, the distance from Dallas is 360 miles.

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s