Question

After reading 80\%80% of her e-mails in her inbox, Danette still has MM unread e-mails. Which of the following expressions could represent the number of e-mails Danette had in her inbox before she started reading?

Answer 1

Answer:

$\frac{10 MM + 8x}{10}$

Step-by-step explanation:

Let x be the number of emails in her inbox

Total Emails read =  80 % x

Total unread emails = MM

Total Emails in her box before she started reading =  MM + 80 % of x

                                                                                     = MM + $\frac{8}{10}x$

                                                                                     = $\frac{10 MM + 8x}{10}$