Answer: 8 batches Step-by-step explanation: To get the number of batches she made, we can just use proportion to solve it. But first, we need to convert 5 1/3 to improper fraction 5 1/3 = 16/3 Then we can now use the proportion to solve 2/3 cups = 1 batch 16/3 cups = x (note:5 1/3=16/3) cross multiply 2/3 × x = 16 /3 2x/ 3 = 16/3 we need to make x the subject of the formula, to do that we will multiply each side of the equation by 3/2 2/3 × 3/2 x = 16/3 × 3/2 6x /6 = 48 / 6 x = 8 Therefore she made 8 batches of cookies.
This one is quite easy to solve, depending on your calculator click shift over the log function and then natural log will pull up and then you just put in 744.1
