35+15t=95 subtract 35 from both sides
15t=60 divide both sides by 15
t=4
So Gabriella went skiing for 4 hours.
Where’s the missing length ?
Step 3: the student missed +4 in the equation while adding both equation
Cavalieri's principle states that if two solids of equal height have equal cross-sectional areas at every level parallel to the respective bases, then the two solids have equal volume.
