Mathematics
12.02.2022 08:29
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A sailboat started its journey at 6:30 am and reached the destination at 11:45pm.

A sailboat started its journey at 6:30 am and reached the destination at 11:45pm. If the distance of the journey is 1276.5 miles, what is the sailboats average speed
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thesusan56351
thesusan56351
5,0(72 marks)

74 mph

Step-by-step explanation:

we know that

To find out the average speed, divide the total distance by the total time

Let

s ----> the speed in mph

d ---> the distance in miles

t ----> the time in hours

so

s=\frac{d}{t}

step 1

Find the total time

A sailboat started his journey at 6:30 am and reached his destination at 11:45 pm

so

from 6:30 am to 12:00 pm ----> there are 5 hours + 30 minutes=5.5 hours

from 12:00 pm to 11:45 pm ----> there are 11 hours + 45 minutes=11.75 hours

The total time is

5.5+11.75=17.25\ hours

step 2

Find the average speed

s=\frac{d}{t}

we have

d=1,276.5\ mi

t=17.25\ hours

s=\frac{1,276.5}{17.25}= 74\ mph

alyxkellar06
alyxkellar06
4,6(59 marks)
ย B. Divide by the leading coefficient

You don't have to divide since you are going to facto it anyway. Hope this helps!

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