Question

What is 39.79949748 rounded to the nearest hundredth?

Answer 1

Answer:

$Number = 39.80$

Step-by-step explanation:

Given

$Number = 39.79949748$

Required

Approximate (to the nearest 100th)

This means that, we approximate at the second digit after the decimal.

So:

i.e,

Number = 39.79  [Begin  approximation] 949748

The first digit after [Begin approximation] is then approximated using the following rule:

$0 - 4 \approx 0$

$5 - 9 \approx 1$

Since 9 falls in $5 - 9 \approx 1$ category, the number becomes:

$Number = 39.[79+1]$

$Number = 39.80$