If 3/5 of all the brownies is 21, then 5/3 of 21 is the number of the brownies that Lauren brought in.
That probably sounded super confusing. When multiplying a number by a reciprocal of a fraction (a fraction where the numerator and denominator is reversed), the previous fraction multiplication is reversed.
Multiplying 21 with 5/3 will give us the original number of brownies.

Lauren originally brought 35 brownies.
According to the information that is found in a different source, the recent data does not support the concerns of the critics. These are the numbers shown in the data:
<u>Airline / Outsource Percent / Delay Percent</u>
<em>Alaska</em> / 51.0 / 10.35
<em>American</em> / 29.4 / 20.32
<em>Delta</em> / 36.7 / 14.48
<em>Frontier</em> / 46.3 / 21.42
<em>Hawaiian</em> / 78.4 / 5.06
Based on this data, we can see that the critics do not seem to be justified in their concerns. We can see that airlines have outsourced much of the maintenance of their planes, but that there does not seem to be a strong correlation between this outsourcing and the percentage of delays. For example, the airline that outsources the most is Hawaiian (78.4%), yet it has the lowest percentage of delayed flights (5.06%).
Simply get rid of the alphabets you don't want and you have the answer. hope this helps. be sure to give me the brainliest answer
Answer: 38, 76, 65
explanation: i’m good at math
The multiplicative inverse of -1/3 is -3.