Could you please help me with this I will give brainliast!!!!!! please I'll do anything!!!!!
Jeff read 3/8 (three-eighths) of a chapter of his history book in 20 minutes. At this rate, how many chapters of his history book can he read in 1.5 hours? Explain how he got 27/16?

Respuesta :

Answer:

27/16 chapters completed in 1.5 hours

Step-by-step explanation:

Jeff read 3/8 part in minutes = 20

He read complete chapter in minutes =[tex]\frac{20}{\frac{3}{8}}=\frac{20}{3} \times 8 = \frac{160}{3} minutes[/tex]

60 minutes = 1 hour

[tex]\frac{160}{3} minutes = \frac{160}{3} \times \frac{1}{60}=\frac{8}{9} hours[/tex]

So, No. of chapters completed in[tex]\frac{8}{9}[/tex] hours = 1

No. of chapters completed in 1.5 hours = [tex]\frac{1}{\frac{8}{9}} \times 1.5=\frac{27}{16}[/tex]

So, 27/16 chapters completed in 1.5 hours