Answer:
25 scarves.
Step-by-step explanation:
Given the following data;
Number of yarns purchased = 15
1 scarf = 3/5 ball of yarn
x scarf = 15 ball of yarn
Cross-multiplying, we have;
3/5*x = 15*1
3x/5 = 15
3x = 15 * 5
3x = 75
x = 75/3
x = 25 scarves.
Therefore, Justin can make 25 scarves.