For a dilation centered around the origin
Dk (x,y) = (kx, ky)
So let's say you have a rectangle PQRS where
P = (0,0)
Q = (4,0)
R = (4,4)
S = (0,4)
To get the dilation of this PQRS to P'Q'R'S' with scale factor 1/4 you multiply every coordinate by 1/4.
P' = (0.0)
Q' = (1,0)
R' = (1,1)
S' = (0,1)
The new cordinates for point q(1,0)
Answer:
Eduardo's second statement is wrong.
Step-by-step explanation:
Eduardo says that an increase from 10 to 40 is 300% which is true. Because there is an increase by (40 - 10) = 30 and the percent of increase is calculated with respect to 10.
So, % of increase =
%.
But when we consider a decrease from 40 to 10, then the decrease is by (40 - 10) = 30, but the percent of decrease will be calculated with respect to 40.
Therefore, the % decrease =
%.
Hence, Eduardo's second statement is wrong. (Answer)
Answer:
$14.80
Step-by-step explanation:
So it looks pretty easy, all you have to do is add all the numbers up and multiply them by .2 or 20% which should get 20% of the overall bill
W > = 50.....2nd number line...it has a closed circle because there is an equal sign in the problem