A. Describe the universal set and subset shown in the figure below.

pls po _/\_

let's start by listing all the givens.

total distance is 420 miles.

slower train goes at 45 mph

faster train goes at 60 mph.

the formula for distance is d=rt.

let's look at the given for the faster train. d (distance, unknown), 60 (rate), and t (time, unknown). using the formula d=rt. we can substitute 60 to the rate to make it . sure you might not able to solve it at hindsight, but we could substitute it to the slower train's equation.

now, the equation for the slower train is ( is the distance, 45 is the rate, and t is the time.)

so if t = 4, it means the trains must travel 4 hours (because of miles per hour) before they meet

i'm not sure

answer: -11x + 6y-41

step-by-step explanation:

if you're figuring it just need to find what to add to get the numbers

to get a -6, you need to add -11 to 5

to get 6y, you just need to bring that and to remove 41, you need to subtract to itself to make it 0

so you have -11x +6y -41

answer:

Sorry idk

Step-by-step explanation: