You bike 1 mile the first day of your training, 1.5 miles the second day, 2.5 miles the third day, and 4.5 miles the fourth day. If you continue this pattern, how many miles do you bike the seventh day?

32.5 miles on the 7th day

Step-by-step explanation:

1, 1.5, 2.5, 4.5

We need to determine the pattern

We are adding .5 + 1/4(2^n)

Lets check

n=1  .5+ 1/4(2) = .5+ .5 =1

n =2   .5 + 1/4*2^2 = .5 +1 = 1.5

n=3  .5 + 1/4 ( 2^3) = .5 + 8/4 = 2.5

n=4   .5 + 1/4 (2^4) = .5 + 16/4 = 4.5

n = 5  .5 + 1/4 (2^5) = .5 +32/4 = 8.5

n = 6   .5 + 1/4 (2^6) = .5 + 64/4 =16.5

n=7   .5 + 1/4(2^7)= .5 + 1/4(128) = 32.5

They bike 32.5 miles

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies