Question

CAN SOMEONE ANSWER THIS, NEED ANSWER NOW. TYSM TO WHOEVER ANSWERS.
Robert and Susan's mother is 160cm tall

Their father is 180cm tall



The formula to calculate a boy's predicted height is:

0.4 (x + y) + 42



The formula to calculate a girl's predicted height is:

0.4 (x + y) + 29



The value x is the father's height in cm

The value y is the mother's height in cm

Calculate the predicted height of Susan when she is an adult. Be sure to include the correct unit of measurement.

Answer 1

Susan is a girl, so you only need the girl’s predicted height equation.

father’s height=x
father’s height=180
so, x=180

mother’s height=y
mother’s height=160
so, x=160

plug x and y into your equation.
0.4(x+y)+29
0.4(180+160)+29

Use GEMDAS to simplify.

G(Groupings)
0.4(340)+29

M(Multiplication)
136+29

A(Addition)
165

Susan’s predicted height when she is an adult is 165 cm.