Brooke has already prepared 11kilograms of dough and will continue preparing 1 kilogram of dough every hour. how many hours did Brooke work if she prepared 21 kilograms of dough?

Answer 1

Let x be the number of hours making dough

total dough = starting amount + amount to make

21=11+1x Subtract 11 from both sides

21-11=11+1x-11 Simplify

10=x

She worked for 10 hours making dough.