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motikmotik
3 years ago
8

A company performed power tests on a set of batteries of the same type. The company 10 determined that the equation y = 100 - 8.

9x, where x is the number of hours of use and y is the percent of battery power remaining, models the battery life. Based on the equation, what is the best prediction of the percent of remaining power for a battery after 11 hours of use?
Mathematics
1 answer:
alexgriva [62]3 years ago
7 0
For this case we have the following equation:
 y = 100 - 8.9x
 Where,
 x = the number of hours of use
 For 11 hours of use we have x = 11.
 Substituting:
 y = 100 - 8.9 * (11)
 y = 2.1%
 Answer:
 
the best prediction of the percent of remaining power for a battery after 11 hours of use is:
 
y = 2.1%
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