5. Judy isn't sure whether a credit card using the average daily balance method, a credit card using the previous balance method, or a credit card using the adjusted balance method is right for her.
Regardless of the method used, Judy's APR will be 26%. Her last 30-day billing cycle was typical for
her, so she decided to calculate the amount of interest charged by each method to compare them.
The opening balance of her last 30-day billing cycle was $930, and it remained that amount for the
first 10 days of the billing cycle. She then made a purchase for $550, so her balance jumped to
$1480, and it remained that amount for the next 10 days. Judy then made a payment of $790, so her
balance for the last 10 days of the billing cycle was $690.
Help Judy decide which method is best for her based on her last 30-day billing cycle. (4 points: Part 1
- 1 point; Part II - 1 point; Part III - 1 point; Part IV-1 point)
Part I: What is Judy's average balance for her billing cycle?

1,203

Step-by-step explanation:

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be

sine

step-by-step explanation: