write a number model to estimate the answer.

18.7 = 74.8 / 4

19 = 80/4

To estimate the answer to the equation 18.7 = 74.8 / 4, we can use rounding.

First, divide 74.8 by 4:
74.8 / 4 = 18.7

Now, let's round the numbers:
18.7 rounds to 19

So, an estimated number model for the equation 18.7 = 74.8 / 4 would be:
19 = 19

Remember, this is just an estimate obtained by rounding the numbers. The exact answer is 18.7 = 74.8 / 4.