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1. The pizza bot travels an average of 4 miles per hour. If he gets sent on a delivery to a house 1.5 miles away. How long will it take for the bot to make the delivery and return to the restraint.



Write in scientific notation

A. 401,570,000 miles
B. 403,440,000 miles
C. 782,690,000 miles
D. 1,669,490,000 miles
E. 1,202,100,000 miles


Please help

Respuesta :

For the first question, since they travel 4 miles per hour, we want to figure out a common factor of 4 and 1.5 - 0.5 works. Since 4/0.5 is 8, we can divide 1 hour =60 minutes by 8 to get 60/8 minutes for 0.5 miles, and since 1.5/05=3, we can multiply 60/8 by 3 to get how many minutes it would take to get 1.5 miles, which is 180/8=22.5 minutes

For A, we have to write it in <number>.<numbers>*10^<number>. Since 4 is the first number, we write it as 4.01570000*10^<number>. Since there are 8 numbers after 4, we have 4.01570000*10^8. I challenge you to use this for the rest of your problems!

The pizza bot travels an average of 4 miles per hour. If he gets sent on a delivery to a house 1.5 miles away. The scientific notation is A. 401,570,000 miles.

How is the time taken for travel, distance traveled, and the average speed related?

We have this below shown relation between them

[tex]\text{Average speed} = \dfrac{\text{Distance traveled}}{\text{Total time taken to travel that distance}}\\\\or\\\\\text{Total time taken to travel that distance}= \dfrac{\text{Distance traveled}}{\text{Average speed} }[/tex]

The pizza bot travels an average of 4 miles per hour. If he gets sent on a delivery to a house 1.5 miles away.

The pizza bot is doing delivery which means it will go to the destination and return back.

So, the total distance traveled should be 2x of distance to the delivery target. Then the time needed for the bot to back to the restaurant would be:

Time needed = distance traveled / average velocity

                       = 2 x 1.5mi / 4mph

                        = 0.75 hour

                        = 45 minutes

For A, we have to write it in <number>.<numbers>*10^<number>.

Since 4 is the first number, we write it as 4.01570000 x 10^<number>. Since there are 8 numbers after 4, we have 4.01570000 x 10^8.

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