Calculating Acceleration of a Train
Until a train is a safe distance from the station it must travel at 5 m/s. Once the train is on open track it can speed up to
45 m/s. If it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train? (Round your antwer to the
nearest whole number.)
4 m/s2
5 m/s2
6 m/s2
7 m/s2

whatever you can spend with $11.53 or under.

step-by-step explanation:

20 - 8.47 = 11.53. take away the money he used for lunch from the starting amount of 20.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.