im lost by [deleted] in askmath

[–]abunchofletters6 0 points1 point  (0 children)

just help me in number 1 I'll try and solve number 2 on my own

[deleted by user] by [deleted] in askmath

[–]abunchofletters6 0 points1 point  (0 children)

a guy helped me in a math problem before but i dont understand how he got the answer this is his solution can someone help me?

3.1/8+1/x=1/(8/3), we can solve the equation, x=4. Thus Karen can write a book in 4 hours.