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Blababa [14]
3 years ago
6

Rachel and Marc drive to work.

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Rachel

d = 90 miles.

d = 90 * 1.6 km = 144 km

t = 1.25 hours.

Average speed = d/ time

Average speed = 144/ 1.25 = 115.2

Marc

d = 244 km

t = 2hr 30 minutes

30 minutes = 1/2 hour = 0.5 hours

Average speed = 244 km / 2.5 hours

Average speed = 97.6

Difference

Difference = Rachel - Marc

Difference = 115.2 - 97.6

Difference = 17.6

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Which of the following conjectures is false?

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J. The sum of two odd numbers is odd

Explanation:

F. The product of two even numbers is even.

For example: Let us take two even numbers 4 and 6.

The product of two even numbers is:

4 \times 6 = 24

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G. The sum of two even numbers is even.

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H. The product of two odd numbers is odd.

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For example: Let us take two odd numbers 3 and 5.

The sum of two odd numbers is:

3+5= 8

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