Question

You need 250 pieces of wood. justin can hammer 10 1/4 pieces of wood an hour and jason can hammer 9 1/2.how many hours will it take for them to finish the fort? round to the nearest whole number

Answer 1

It will take about 13 hours.

10.25x+9.5x=250
19.75x=250
x=12.65
Round up to 13.