Black Wall Street, former byname of the Greenwood neighbourhood in Tulsa, Oklahoma, where in the early 20th century African Americans had created a self-sufficient prosperous business district. ... Black businesses clustered on the strip of land that would become Greenwood in 1905, when African Americans acquired the land.
I believe LX is the answer.
Opposite sides of a parallelogram are equal lengths, so ...
... AB = CD
... 6x +30 = 2y -10
and
... BC = AD
... 2x -5 = y -35
_____
The equations can be put in standard form to get
... 3x -y = -20
... 2x -y = -30
Subtracting the second from the first, we get
... x = 10
Solving for y, we have
... y = 2x+30 = 2·10 +30 = 50
The values of x and y are x=10, y=50.
_____
AB = 6x+30 = 90
BC = 2x-5 = 15
We can divide the amount he traveled (640) by the time he traveled (10):
640 / 10 = 64.
So Curtis drove 64 miles per hour.
Check:
64 miles per hour multiplied by 10 hours:
64 * 10 = 640
Answer:
I think it's called the Converse of the Pythagorean. This tells us that if the square of one side of a triangle is equal to the sum of the squares of the other two sides, then the triangle is a right triangle.To do this you just plug in the numbers where c is the largest among a,b,c. ( in case you forgot a and b are bases and the c is called the hypotenuse)
