Question

Another method is to add the parents’ heights in inches and then add an additional 5 inches if the child is a boy or subtract 5 inches if the child is a girl. This total is then divided by 2 to predict the child’s ultimate height.Use the variable D, height of dad) and M, height of mom Write a formula for a boy’s adult height. Write the formula for a girl’s adult height.

Answer 1

Concept:

Write the variables

Height of dad = D inches

Height of mum = M inches

Step 1:

Total parent's height = D + M

Step 2:

The formula for a boy's adult height

$=\text{ }\frac{D\text{ + M + 5}}{2}\text{ inches}$

Step 3:

The formula for a girl’s adult height.​​​​​​

$=\text{ }\frac{D\text{ + M - 5}}{2}\text{ inches}$