If a train leaves the station at 7:00 AM and travels at 56 mph, at what time would it arrive at the next town that is 450 miles away?

Step-by-step explanation:

This is a simple motion problem.  Believe me, they get much harder!  The distance formula is

d = rt

We want to know, basically, how long it will take this train traveling 56 mph to go 450 miles.  We have the r, rate, and the d, distance:

450 = 56t so

t = 8.0

That means it will take 8 hours for the train to travel that far.  If it leaves at 7 am, 8 hours after that will put it in the next town at approximately 3pm.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign