Question

Fifteen 2 inch nails weigh 35 grams. How many of these nails weigh 175 grams? Can you explain how to do this please thankyou so much

Answer 1

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 = (2625)/(35)`

`\boxed{n = 75}`

Answer:
75 nails weigh 175 grams