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Alisiya [41]
3 years ago
8

Convert 5.764764764... to a rational expression in the form of a/b where b=0

Mathematics
1 answer:
Valentin [98]3 years ago
4 0
Say x=5.764---
Then 1000x=5764.764---
Then 1000x-x = 5759
So 999x = 5759
So x=5759/999

I don't see how b can be 0 in this case... what does that mean? You would never divide by 0 and live to tell about it, right?
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Jessica traveled to Portland by car. Going there took 3 hours, and the return trip lasted 6 hours. Jessica averaged a speed of 4
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Answer:

The average speed of the trip there is <u>86 mph.</u>

Step-by-step explanation:

Given:

Time taken to reach Portland = 3 hours

Time taken to come beck from Portland = 6 hours

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Distance traveled for the returning trip can be obtained by multiplying the returning speed by returning time. Therefore, distance for returning trip is:

D=speed\times time=43\times 6=258\ miles

Now, distance traveled for the return trip is same as going to the trip.

So, distance traveled by Jessica going to Portland = 258 miles.

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Therefore, speed of the trip there is given as the ratio of distance and time and is given as:

\textrm{Average speed}=\frac{Distance}{Time}\\\textrm{Average speed}=\frac{258}{3}=86\ mph

Therefore, the average speed of Jessica's car to go to Portland is 86 mph.

3 0
3 years ago
Simplify the expression. 5 + 4 • (8 – 6)2
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