Question

You bike 3 miles the first day of your​ training, 3.3 miles the second​ day, 3.9 miles the third​ day, and 5.1 miles the fourth day. If you continue this​ pattern, how many miles do you bike the seventh​ day?

Answer 1

Answer:

The answer to your question is 21.9 mi

Step-by-step explanation:

Data

1st day = 3 mi

2nd day = 3.3 mi

3rd day = 3.9 mi

4rd day = 5.1 mi

7fh day = ?

Process

1.- Calculate the pattern

Day            1           2           3         4        5          6         7

MIles          3          3.3         3.9     5.1    7.5       12.3     21.9

Gradient          0.3         0.6       1.2    2.4    4.8      9.6

We notice that the gradient is duplicating so the miles that I bike the seventh day are 21.9.