Answer: 20 minutes
Step-by-step explanation:
She has 45 mins to complete her writing paper.
She spends: [tex]10\frac{1}{8}[/tex] minutes to plan her paper.
She spends: [tex]15\frac{1}{2}[/tex] minutes writing rough drafts.
How much time left does she have?
[tex]45-(10\frac{1}{8} +15\frac{1}{2})[/tex]
[tex]45-(10+15(\frac{1}{8}+\frac{1}{2}))[/tex]
[tex]45-(25\frac{(1)(2)+(8)(1)}{(8)(2)})[/tex]
[tex]45-(25\frac{2+8}{16} )[/tex]
[tex]45-(25\frac{10}{16})[/tex] Simplify the fraction.
[tex]45-(25\frac{5}{8})[/tex]
[tex]45-25(\frac{5}{8})[/tex]
So she has approximately,
[tex]20\frac{5}{8} =\frac{165}{8}= 20[/tex] minutes.
