Elena drank 5 bootles of water over 7 volleyball pracitces. how much water did elena drink each practices if she drank the same amount each time ?
a. 2/7
b. 2/5
c. 5/7
d. 7/5 or 1 2/5

If you would like to know how much water did Elena drink each practice if she drank the same amount each time, you can calculate this using the following steps:

5 bottles of water ... 7 practices
x bottles of water = ? ... 1 practice

5 * 1 = 7 * x
5 = 7 * x     /7
x = 5/7 bottle of water

The correct result would be 5/7 bottle of water.

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.