In a survey, 300 shoppers were asked whether they have access to a computer at home and if they have a personal e-mail account. Their responses are summarized in the following table.
E-Mail account
No e-mail
account
24
Computer access at home
No computer access at home
90
18
168
(a) What percentage of the shoppers do not have an e-mail account?
(b) What percentage of the shoppers do not have computer access at home?
(a) [%
Х
$
?
(b) 1%
Explanation
Check
2021 McGraw-Hill Education. All Rights Reserved Terms of Use | Prive Access

A. 64%, B. 62%

Step-by-step explanation:

Find how many people do not have an email account.

168 + 24 = 192 Find the percentage.

192/300 = 0.64 Hence, 64% of shoppers don't have an email.

Do the same for B.

168 + 18 = 186

186/300 = 0.62

62% of shoppers don't have access to a computer.

tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

welcome!

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square