16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer
Answer:
3:5
Step-by-step explanation:
first half : 9
second half : 15
9:15 = 3:5
Answer:
y = 3x -18 ( where y = balls sent back by Rudolf; x= balls given to Rudolf)
Step-by-step explanation:
x (Balls given) y( Balls sent back)
8 6 Δy/Δx = (27-6)/(15-8) = 3
15 27
25 57 Δy/Δx = (57-27)/(25-15) = 3
Observing the number sequence shows constant gradient and as such we can use equation of a straight line to relate the two variables.
Using the equation of a straight line we have:
(y-y1)/(x-x1) = (y2-y1)/(x2-x1)
y-6/x-8 = (27-6)/(15-8)
y-6/x-8 = 3
y-6 = 3(x-8)
y-6 = 3x - 24
y = 3x-18
The new surface area will be 9 times the old surface area.
So A or #1
Answer:
6
Step-by-step explanation:
that´s easy its basically dividing 3 by 18 which is 6