contestada

at a store customers are randomly selected to participate in a survey on Friday they are 500 customers at the store of those 90 was selected to participate in the survey on Saturday the store manager expect 700 customers in the store. If the same possibility was selected to participate in the survey on Saturday as the same on it was on Friday how many customers will be selected to participate in the survey on Saturday

Respuesta :

There will be 126 people selected to participate on Saturday.

We set up a proportion to solve this:

90/500 = x/700

Cross multiply:
90*700 = 500*x
63000 = 500x

Divide both sides by 500:
63000/500 = 500x/500
126 = x

Otras preguntas