Question

Sam wants to improve his GPA. to earn a 4.0 this semester. His prior GPA was a 2.75. Imagine that there is an equation that says his new GPA could be calculated based on the number of hours he spends studying, his class attendance, and his prior GPA. Written as an equation, it is Grade (0.50 x hours spent studying) +(0.25 x class attendance hours) + (0.25 x prior GPA). Sam plans to attend class for 4 out of 4 hours each week. Use the equation to determine approximately how many hours per week Sam needs to study to earn a 4.0. Select one: a. 2.3 hours b. 4.0 hours c. 1.7 hours d. 4.6 hours

Answer 1

Answer:

C. 1.7 hours

Explanation:

The equation is .5x(study time) + .25x(Hrs in class) + .25x(prior Gpa). He spent 4 hours in class and had a 2.75 GPA, so we can simplify it to .5x + 1.6875x = 4.0. Combine like terms to get 2.1875x = 4. Divide the coefficient and x should come up to about 1.8, this is the closest answer, so I think its C!