There as 16 cards, 2 of which are wildlife cards, so the ratio is 16 : 2. We can simplify it by dividing both sides by 2, so we'll get the ratio of 8 : 1.
I hope this helps! :)
Josh did not follow the order of operations , he should have done 8x divided by 2 first but instead he did 4x- 8x
The correct solution...
4x-8x / 2
4x -4x
0
The solution should be zero (0)
Hope it helps!
Answer=19.05% decrease
42 birds 34 birds
___________=__________
100percent x percent
cross multiply
42x=3400
divide both sides by 42
x=80.95 percent
The inventory in 2011 is 80.95% the inventory in 2010
100-80.95=19.05% decrease
I don't know an equation so don't do rate this...but if it were me, I would guess between 6(pi) or 8(pi)