Timmy is training for a triathlon. for every four minutes spends running, he spends seven minutes biking. how many minutes will timmy run if he has spent 63 minutes biking

36 minutes.

Step-by-step explanation:

63 total minutes biking divided by every 7 minutes he bikes for every four minutes he runs equals 9. So 9 minutes for 4 minutes he runs is basically 9 * 4 which equals 36. So 36 minutes.

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step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

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