Joe will need 18 scoops of dried lentils to have enough for both the lentil barley and the lentil salad.before conducting some experiments a scientist mixes1/2 gram of substance a with3/4 gram of substance.b if the scientist uses 1/8 gram of the mixture for each experiment, how many experiments can be conducted?

10 experiments

Step-by-step explanation:

Given:

Amount of substance A =

Amount of substance B =

Total amount of mixture =

Now, amount used for each experiment =  

So, number of experiments conducted =

Therefore, the number of experiments conducted are 10.

probability of drawing ace: 4/52 = 1/13

probability of drawing 9: 4/52 = 1/13

probability of drawing ace or 9: 1/13 + 1/13 = 2/13 or ~15.4%