The elevator in the washington monument takes 75 seconds to travel 500 feet to the top floor. what is the speed of the elevator in miles per hour? show your work and explain your reasoning in the space below.

The speed of the elevator in miles per hour is

Step-by-step explanation:

We are given

The elevator in the Washington Monument takes 75 seconds to travel 500 feet to the top floor

so,

total distance is 500 ft

Firstly, we will change feet to miles

we know that

1 mile = 5280 feet

so,

we can multiply both sides by 500

so,

total time is 75 seconds

now, we can change seconds into hours

we know that

1 hour =3600 seconds

so,

we can multiply both sides by 75

we know that

speed = distance / time

so,

now, we can plug values

now, we can simplify it

So,

The speed of the elevator in miles per hour is

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source: