berniece2002

21.08.2021 • 

Mathematics

T = 2.2t A track coach believes he can predict an elite runner's 400-meter time, T, based on his 200-
meter time, t, using the above equation. What is the meaning of the 2.2 in the equation?

A. a runner’s 400-meter time is twice his 200- meter time

B. a runner’s 400-meter time is twice his 200-meter time, plus 2% of his 200- meter time

C. a runners 400- meter time is twice his 200- meter , plus 10% of his 200- meter time

D. a runner 400- meter time is twice his 200- meter, plus 20% of his 200- meter time

Ответ:

emmi14

08.05.2023

Mathematics

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25

Step-by-step explanation:

Extremely long way of explanation,

1. Take 5 and look for any sign on the left side.

2. See that there is one plus sign

3. add those together 5 + 5

4. that equals 10

5. move down everything 10+5+5+5

6. look to the left

7. add 10+5

8. answer is 15

9. move everything down

10. 15+5+5

11. look for a sign

12. take the sign and solve

13. You will get 20

14. move down everything

15. look to the left of the equation

16. 20+5

17. add together

18. the answer is 25

19. Re-write the answer

20. 25

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