Mathematics: Assuming the trend that exists in the data set below applies to all students, how long should Trevor study if he want to get at least a 75% on the test?

Assuming the trend that exists in the data set

sophiaa23

07.07.2021

He should study for at least 88 minutes

Step-by-step explanation:

The missing parameters are:

y = 0.36805x + 42.6864 --- equation of trend

$y \to grade$

$x \to time$

Required

x when y = 75

y = 0.36805x + 42.6864 becomes

75 = 0.36805x + 42.6864

Collect like terms

0.36805x = 75 - 42.6864

0.36805x = 32.3136

Solve for x

$x = \frac{32.3136}{0.36805}$

x = 87.80

$x \approx 88$

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harlon852

24.02.2020

-56,-17,0,5,34

Step-by-step explanation:

negatives are less than the positives so you start with the greatest negative and then go to the positives. The 0 is the origin.

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