The area are in the ratio of the squares of corresponding sides.
That is 15^2 : 20^2 = 225:400
so the area of the smaller figure = (225/400) * 64
= 0.5625 * 64
= 36 cm^2 (answer)
Y = (3x + 11)/2
y(1) = 7
y(2) = 17/2
y(3) = 10
We then plot these values on the x and y axes to obtain the graph.
If one-third of his total trip is 640
You would multiply 640 by 3 to find out how far his total trip is.
640 x 3 = 1,920
