You head to the gym for a workout and get on a treadmill. You set a goal on the treadmill to burn 300 calories while running at a constant speed. The treadmill tells you how many total miles you have run, along with the number of calories you have left to burn. At one point during your workout, you look at the treadmill screen, and it tells you that after running 0.6 miles, you have 255 calories left to burn to meet your goal. Assume that there is a constant rate of change between the number of calories you burn and the number of miles you have been running.

lol

Step-by-step explanation:

okay, if you need all you need to do is ask, and i'll do my best to assist you.

step-by-step explanation:

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".