Respuesta :
Answer:
9.5 Hours
Step-by-step explanation:
3.1x+40.5 is the equation
input x
3.1(9.5)+40.5
29.45+40.5
69.95
round that to 70
The time spent by the student studying would be option B: 9.5 Hours.
What is a system of equations?
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
A student gets a score of 70 on the test.
The equation form as
3.1x + 40.5
Put x = 9.5
3.1(9.5)+40.5
29.45+40.5
69.95
Thus, round that to 70.
Learn more about equations here;
https://brainly.com/question/10413253
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