Solving:
1) Pass: Make the rule three (Directly proportional)
Two inch nails ______ grams (Weight)
15 ----------------------------35
n ----------------------------- 175
2) Pass: Multiply cross
[tex]35*n = 15*175[/tex]
3) Pass: Simplify
[tex]35*n = 15*175[/tex]
[tex]35n = 2625[/tex]
[tex]n = \frac{2625}{35} [/tex]
[tex]\boxed{n = 75}[/tex]
Answer:
75 nails weigh 175 grams