Math 123 Quantitative Reasoning Quiz Linear Models Name: Show work in order to r
ID: 3148530 • Letter: M
Question
Math 123 Quantitative Reasoning Quiz Linear Models Name: Show work in order to receive full credit 1.) According to the vy Tech website, students will pay a $60 technology fee and $121.50 per credit hour for Spring 2014. a. Set up a linear model to calculate a student's bill based on this information. b. The independent variable in my model is and it represents c. The dependent variable in my model isand it represents Use your model to determine how many credit hours a student is taking if his bill is $1639.50? d. 2.) You invest $230 to start a sandwich stand and decide to charge $4.25 per sandwich. a. Set up a Linear Model that determines your profit or loss based on the number of sandwiches. b. How many sandwiches must you sell to break even? c. How many sandwiches must you sell to make a $100 profit?Explanation / Answer
given technology fee $60
credit hour for spring=121.5
total bill=technology fee+credit hour for spring*number of hours
total bill (B)=x+yn
where x represents =technology fee
y represent credit hour for spring
n represent number of hours
b)independent variable is ' x' and it represents technology fee .
c)The dependent variable is 'n' and it represent no of hour.
d)$1639.5=60+121.5n
n=13 hours