Two complementary angles make a total of 90, so 3x+6x=90, x=10
%change=100(final-initial)/initial
%change=100(7498847290-6672678672)/6672678672
%change=12.38% (to nearest one-hundredth of a percent)
So the world's population increased by 12.38%.
If you divide x by y you get 4.5.
y = [<u>4.5</u>]x
Answer:
Grey to white= 2:1
White to grey= 1:2
Step-by-step explanation:
If 1/3 of beads in a bag are white, 2/3 are grey. This means for every 1 white bead in the bag, there are 2 grey beads. To write that as a ratio, it just needs a colon in-between the numbers in the order that they ask.
