5. Rewriting Equations and Formulas
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LHS+2=RHS+2
Add terms
.LHS /4.=.RHS /4.
Rearrange equation
d | d+2/4 | n |
---|---|---|
3 | 3+2/4 | 5/4 |
6 | 6+2/4 | 2 |
10 | 10+2/4 | 3 |
If the penny size is 3, the length of a nail is 54 inches. If the penny size is 6, the length of a nail is 2 inches. A penny size of 10 corresponds to a length of 3 inches.