An elevator ascends, or goes up at rate of 750 feet per minute. is the height to which the elevator ascends proportional to the number of minutes it takes to get there? 2 minutes

Yes.

The relation is  h = 750t    where h = height in feet and t = time in minutes.

At 2 minutes  the elevator has climbed  750 * 2 = 1,500 feet.

f

step-by-step explanation:

f

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".