A train leaves the station at time t = 0. Traveling at a constant speed, the train travels 390 kilometers in 3 hours. Answer parts a and b.

a. Write a function that relates the distance traveled d to the time t.
The function that relates the distance traveled d to the time t is
(Type an equation.)

b. Graph the function, and tell weather it is a linear function or a nonlinear function

a: D= 130T

B it is a linear function

Step-by-step explanation:

no one knows lol

step-by-step explanation:

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!