Her friend's height is 5 feet
Madeleine's height is given as:
Height = 6 ft
The height of her shadow is represented as:
Shadow = 108 inches
Her friend's shadow is 1.5 feet (i.e. 18 inches) shorter.
So, we have:
Friend's shadow =108 inches - 18 inches
Friend's shadow = 90 inches
So, we have he following equivalent ratio
\(6 : 108 = h : 90\)
Express as fraction
\(\frac{6}{108} = \frac{h}{90}\)
Multiply through by 90
\(5 = h\)
Rewrite as:
\(h = 5\)
Hence, her friend's height is 5 feet
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