A food service in the mall prepares free samples of chicken to give out during dinner time. One hour later, the food service has
given out 4 fewer than 70% of the total number of samples. How many samples did the food service prepare if they gave out 80 samples in the first hour?
The food service gave out 80 samples, which is 4 fewer than 70% of the total number of samples they prepared. Lets make x the total number of samples they prepared.
So lets write it as an equation
80 = (70% of x) -4
70% converts to a decimal by moving the decimal point 2 spaces up, so it is 0.7
