## Algebra 1

This is a proportion problem. You already know that a 6-feet tall object creates a 9-feet tall shadow. The variable is the height of a tree with a 48 ft shadow. You would use the equation shown below: $\frac{6}{9}=\frac{x}{48}$ Then, cross multiply and solve. $6\times48=x\times9$ $9x=288$ $(9x)\div9=(288)\div9$ $x=32$ The tree is 32 ft tall.