One number is seven more than six times another number. If the sum of the numbers is 21, find the numbers
2 answers:
You might be interested in
<h3>Answer: 39</h3>
========================================================
Explanation:
You can use the nCr formula shown below
where n = 39 and r = 1. However, you could also use the identity
which basically says there are n ways to pick 1 item if you are given a choice of n items. In this specific case, we have 39 items total, and there are 39 ways to pick one item.