Answer this sum correctly asap max stayed in a hotel that had 60 rooms. the number of rooms on each floor was 4 more than the number of floors in the hotel. how many rooms were on each floor?

So let's call x the number of rooms on each floor, and y the number of floors in the hotel. We have: x*y=60. We also know that the number of rooms on each floor is 4 more than the number of floors, so we have x=y+4. We are looking for the number of rooms on each floor so we should subtract 4 from each side to get x-4=y. We then substitute that back into our original equation and get (x)(x-4)=60. We can solve this two ways: Evalute the factors of 60 or solve the quadratic. The former is quicker because 60 is a small number. We can instantly see that 10 and 6 are two options for x, and we know it's 10 because if it were 6 that would mean the hotel had two floors. If we were to solve the quadratic, we would have:

x²-4x=60 ⇒

x²-4x-60=0 ⇒

(x-10)(x-6)=0 ⇒

x=10 or x=6.

If x=10, that would mean y=6, because x=y+4, which gives us the desired 60 rooms.

If x=6, that would mean y=2, because x=y+4, which gives us an undesired 12 rooms.

There are 10 rooms per floor.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day