mary picks 15 flowers from her garden. if 3 out of 5 of the flowers are red, how many red flowers does mary pick?

Mary picks 9 red flowers.

Explanation:

3/5 = x/15

you first cross mulitiply 5 by x and 3 by 15

5x/5 = 45/5

then you divide 45 by 5 and get 9.

x = 9 red flowers  

if you break down the data from the global footprint network, china exerts far more pressure on its ecosystems per capita than america in terms of crops, grazing, foresting, and fishing. but where america blows everybody out of the water is carbon emissions per capita