Mathematics, 30.10.2020 01:40 jennelledenise
Jillian surveyed students at her school and found out the following probabilities:
\begin{aligned} &P(\text{freshman})=0.30 &P(\text{plays instrument})=0.20 &P(\text{freshman and instrument})=0.10 \end{aligned}
P(freshman)=0.30
P(plays instrument)=0.20
P(freshman and instrument)=0.10
Find the probability that a student plays an instrument given they are a freshman.
Answers: 2
Mathematics, 21.06.2019 13:50
James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? 1. define a variable for the situation. 2. write an inequality that represents the situation. 3.solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. 4. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.
Answers: 3
Mathematics, 21.06.2019 17:30
(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .
Answers: 1
Jillian surveyed students at her school and found out the following probabilities:
\begin{aligned}...
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