NEED RIGHT NOW!!! Using the Empirical Rule
Quick
Check
The numbers of minutes a group of people spend waiting What percent of oil changes take less than 60
for an oil change are Normally distributed with a mean of minutes?
40 minutes and a standard deviation of 10 minutes.
2.5%
Minutes Waiting for an Oil Change
47.5%
O 97.5%
99.7%
1
1
1
1
10
60
70
20 30 40 50
Minutes
Intro

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.