Question

Lisa and Daisy work at a hair salon. The salon charges $18 for a hair styling session with Lisa and $12 for a session with Daisy. The income on a certain day is projected to be $216. This situation can be represented by the equation 18x + 12y = 216, where x is the number of Lisa's customers and y is the number of Daisy's customers. How many customers would Lisa need to serve to attain the projected income if Daisy calls in sick that day? (Note: x ≥ 0, y ≥ 0, and x and y take only integer values.)

Answer 1

The given conditions are the following:

Charge for Lisa's work is $18 per session.
Charge for Daisy's work is $12 per session
.The projected income per day is $216 and this is represented by the equation 18x + 12y = 216

If Daisy is on sick leave, Lisa should work in the following number of session bellow:
18X + 12 (0) = 216
18X = 216
X = 216/18
X= 12

Lisa should work for the total of 12 sessions to attend $216 income that same day.