Question

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?

Answer 1

Answer:

10 experiments

Step-by-step explanation:

Given:

Amount of substance A = $\frac{1}{2}\textrm{ g}$

Amount of substance B = $\frac{3}{4}\textrm{ g}$

Total amount of mixture = $\frac{1}{2}\textrm{ g}+\frac{3}{4}\textrm{ g}=\frac{5}{4}\textrm{ g}$

Now, amount used for each experiment =  $\frac{1}{8}\textrm{ g}$

So, number of experiments conducted = $\frac{\textrm{Total amount of mixture}}{\textrm{Amount used for each experiment}}=\frac{\frac{5}{4} }{\frac{1}{8} } =\frac{5}{4}\times 8=10$

Therefore, the number of experiments conducted are 10.