Question

A steel bridge is 1000m lang at 20 degrees celsius. The bridge will expand or contract by .10m when the temperature changes by 1 degree celsius. How long would the bridge be at 24 degrees celsius? *

Answer 1

1000.4m

Explanation:

Objects usually expand when the temperature is warmer

Each degree celsius higher, the bridge expands by .10m

If the temperature goes from 20 to 24, it increases by 4 degrees which will be 0.4m

1000m+0.4m=1000.4m