Step-by-step explanation:
because we can also find out the value of x in second equation like this
3x=21
x=21/3
x=7
<h3>
Answer: 39</h3>
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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.
Answer:
soooooooo where's the rest of the question? LOL
Step-by-step explanation:
Step-by-step explanation:
I think the answer is x=70
Answer:
I think it would be -0.416 but I'm not real sure so make sure before using my answer! :3 Have a great day!