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Hannah practices her guitar for 40 minutes on Monday. On Tuesday she practices for 5/8 of the time she practiced on Monday. On Wednesday she practices for 4/5 of the time she practiced on Tuesday. How many minutes did Hannah practice on Wednesday.
A 20 minutes. B 25 minutes
C 30 minutes. D 40 minutes
Please show me how you get the answer



Answer :

naǫ
She practices for 40 minutes on Monday.

On Tuesday she practices for 5/8 of 40 minutes.
[tex]\frac{5}{8} \ of \ 40=\frac{5}{8} \times 40=5 \times \frac{40}{8}=5 \times 5=25[/tex]
On Tuesday she practices for 25 minutes.

On Wednesday she practices for 4/5 of 25 minutes.
[tex]\frac{4}{5} \ of \ 25=\frac{4}{5} \times 25=4 \times \frac{25}{5}=4 \times 5=20[/tex]

Hannah practices for A. 20 minutes on Wednesday.

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