Question

17At a science museum, Julia compares the length of a T-rex tooth and a crocodile tooth. The T-rex tooth is12foot long. The crocodile tooth is foot long.4What expression can be used to find how much longer the T-rex tooth is than the crocodile tooth?

Answer 1

The expression can be used to find how much longer the T-rex tooth is than the crocodile tooth:

Step-by-step explanation:

make 1/4 to have the same denominator as 7/12

$\begin{gathered} \frac{1}{4}=\frac{?}{12} \\ \frac{1}{4}=\frac{x}{12} \\ 4x=12 \\ x=\frac{12}{4}=3 \end{gathered}$

1/4=?/12

1×12=12

12/4

3

3/12

7/12-3/12