Ahigh speed elevator can rise 500 feet in 30 seconds. which expression represents the rate, in feet per minute, of the elevator?

The answer to your question is 1,000 feet per minute because if you multiply 30 by 2 you get 60 seconds which is one minute and so you do the same to the 500 feet and multiply it by 2 and you get 1,000 so it would be 1,000 feet per minute

Okay so n is going to represent our first number. since the second number of five times greater than n, the second number will be represented as 5n. for us to figure out the two  numbers we need to have  the value of n first. this is going to be done by adding the two numbers together, n and 5n. it can be simplified as 6n, which the problem states is equal to 72. divide 72 by 6n and you can solve for n.  n+5n=726n=72n=(72/6)n=12  now that we know the value of n, we have to multiply 5 times 12 which equals 60. so our two numbers/integers are 12 and 60