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rewona [7]
3 years ago
15

A trip to Portland, Oregon, from Boston will take 7 3/4 hours. Assuming we are two-thirds of the way there, how much longer, in

hours, will the trip take?
Mathematics
2 answers:
alexandr402 [8]3 years ago
8 0
2 7/12. 7 3/4 fourths divided by 3 equals 2 7/12. 2/3 is equal to 5 1/6. 7 3/4 - 5 1/6 equals 2 7/12. :)
Debora [2.8K]3 years ago
3 0

Answer:

2\frac{7}{12} hours or 2 hours 35 minutes.

Step-by-step explanation:

A trip to Portland, Oregon from Boston will take = 7\frac{3}{4}  hours

We are finished = \frac{2}{3} of the trip

                          = \frac{2}{3} × 7\frac{3}{4}

                          = \frac{2}{3} × \frac{31}{4}

                          = \frac{62}{12}  

                          = \frac{31}{6}

                         = 5\frac{1}{6}  hours of the trip completed.

Now we will subtract from the total time of trip to completed time of trip.

= 7\frac{3}{4} - 5\frac{1}{6}

= \frac{31}{4}  - \frac{31}{6}

= \frac{93-62}{12}

= \frac{31}{12}

= 2\frac{7}{12} hours = 2.58 hours or 2 hours 35 minutes

The trip will take  2\frac{7}{12} hours

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