The best modeling situation with a division expression is finding the number of equal-sized parts into which a number can be split, as demonstrated in the provided steps.
The situation best modeled with a division expression is:
a - finding the number of equal-sized parts into which a number can be split.
In step 1, the expression 5.16 ÷ 1.3 represents dividing 5.16 into equal-sized parts (1.3 each).
Step 2 involves dividing 16/5 by 3/1, which also signifies dividing 16 into equal-sized parts of size 3/5.
Step 3 simplifies to 48/5, again representing the division of 48 into equal-sized parts of size 5.
Step 4, with the result 9 3/5, indicates that 48 can be split into 5 equal-sized parts with each part being 9 3/5.
In each step, the division expression is used to determine the number of equal-sized parts into which the given number can be split. Therefore, option 'a - finding the number of equal-sized parts into which a number can be split' accurately describes the modeling of the situations outlined in the steps.
The question probable may be:
Step 1 : 5.16 divided by 1.3 = h
step 2 : 16/5 divided multiplied by 3/1 = h
step 3 : 48/5 = h
step 4: 9 3/5 = h
Which situation is best modeled with a division expression?
a - finding the number of equal-sized parts into which a number can be split
b - finding the combined value of several different numbers
c - finding the distance between two numbers on a number line
d - finding the total value when several of the same number are grouped together