$1,500 borrowed over 4 years with an interest rate of 10%. What is the interest and the total value?

Total value: $2,100

Interest: $600

Step-by-step explanation:

We'll use the simple interest rate: A=P(1+rt).

A= final amount

P=initial principal interest

r=annual interest rate

t=time (years)

So all we have to do is plug in the values given from the question into the formula, which would look like this:

A=1,500(1+.10x4)

A=1,500(1.40)

A=2,100

Then to find the interest we subtract the final amount (2,100) by the initial amount (1,500), 2,100-1,500=600.

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