Solve the simultaneous equations
x + 5y = 16
x + 3y = 10

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.