The French club is sponsoring a bake sale. If its goal is to raise at least $140, how many pastries must it sell at S3.50 each to meet that goal?
Using ratio but in fractional format
We need to determine the count of pastries so we put that as the top number.
Let the unknown count of pastries be
Multiply both sides by $140
The units of measurement (dollars) cancel out giving
It is not usual to sell part of a pastry so the count is 43