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IRINA_888 [86]
3 years ago
13

John was given a math equation. He completed it in 5 seconds. Is his answer correct? If it is, show how he got the answer. Show

your work. See picture down below.

Mathematics
1 answer:
Maru [420]3 years ago
7 0

Yes; his answer is correct.

John can do this by multiple ways, but most likely he just remembered this one. Here are some ways.

1. He used his fingers; he put 1 finger, then another finger, and got 2 fingers up. The answer is 2.

2. He remembered it; usually Kindergarteners learn this and this is very easy to remember.

3. He used the things around him; I have 1 crayon then add another, how many do I have? 2.

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You have to do a little subtracting and a little interpreting to get the answer. First you must assume that the bee travels in a straight line. This is math so we can assume this is true, although thousands would disagree.

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Third you have to assume that the distance there is the same distance as coming back. Again this is math. We can make this assumption.

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Find the time each way.

The total time is 240 seconds, but it is not divided evenly.

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Let the time back = 240 - t

The distances are the same.

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r1 = 4 m/s

t1 = t

t2 = 240 - t

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6 m/s *t = 4 m/s (240 - t)      Remove the brackets on the right.

6 * t = 4*240 - 4t                  Combine the like terms on the right.

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6t + 4t = 960 - 4t + 4t          Combine

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10t/10 = 960/10                    Do the division

t = 96                                    Time going to the flower bed

Find the distance

d = ?

r = 6 m/s

t = 96 second

d = r*t

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