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