Question

paracord (feet)
70
60
50
40
30
20
10
1 2 3 4 5 6 7 8 9 10
bracelets
x
which style requires less paracord per bracelet?
fishtail cobra
how much paracord would alvin use to make 15 of those bracelets?

Explanation:

Step1: Find the rate of the red line (let's assume it's one style, say cobra for calculation). From the graph, when x=5 (bracelets), y=40 (feet). So rate is 40/5 = 8 feet per bracelet.

Step2: For 15 bracelets, use the rate. Total paracord = rate number of bracelets = 8 15 = 120. Wait, but first, confirm the style with less paracord. Wait, the other points (the scattered ones) for fishtail? Wait, no, the red line is a proportional relationship (passes through origin). Let's recalculate the slope of the red line. When x=1, y=8? Wait, x=5, y=40, so slope is 40/5 = 8. So per bracelet, 8 feet. Now, for 15 bracelets, 815=120. But wait, the question is about which style has less per bracelet. Wait, the scattered points: for example, at x=9, the fishtail (maybe) has y≈8, so per bracelet, 8/9 ≈0.89? No, wait, no, the y-axis is paracord in feet. Wait, no, the red line: when x=5, y=40, so 40 feet for 5 bracelets, so 8 feet per bracelet. The other points (like at x=9, y≈8) would be 8/9 ≈0.89, but that can't be. Wait, maybe I misread the axes. Wait, x is bracelets, y is paracord (feet). So the red line: when x=5, y=40, so 40 feet for 5 bracelets, so 8 feet per bracelet. The other style (fishtail) has points like at x=9, y≈8, so 8/9 ≈0.89, which is less. But the first part: which style requires less paracord per bracelet? The fishtail (the scattered points) have lower y per x. But the second question: "How much paracord would Alvin use to make 15 of those bracelets?" Assuming "those" refers to the style with the red line (cobra), since it's a proportional relationship. So rate is 8 feet per bracelet. So 158=120.

Answer:

120 (assuming the style with the red line, and rate 8 feet per bracelet)