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John will need to sleep for 10.3 hours before his second exam so that the
average of his two exam scores is an 80.
We were given
8 hours of sleep = 70
To get average of 80
<u>70+ x</u> = 80
2
Cross multiply:
70+x = 160
x= 160-70
= 90.
If 8 hours of sleep = 70
x hours of sleep = 90
Cross multiply
8× 90 = 70 × x
720 = 70x
x = 720/70
x = 10.2857
≈ 10.3 hours of sleep
Read more about Equation here brainly.com/question/17202391
Nash equilibrium is a set of strategies in which each player's strategy is considered as the best option for that player, based on the chosen strategy of their opponents.
<h3>What is a strategy?</h3>
A strategy refers to a set of guiding principles, actions, behavior, and decisions that a player strategically combines, so as to successfully achieve his or her goals, objectives, and possess a competitive advantage over opponents.
In game theory, it should be noted that Nash equilibrium is a set of strategies in which each player's strategy is considered as the best option for that player, based on the chosen strategy of their opponents.
Read more on Nash equilibrium here: brainly.com/question/17515037
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