Final answer:
To calculate Jonia's WHR, her waist circumference (42 inches) was divided by her hip circumference (40 inches), giving a WHR of 1.05. This indicates a high risk for cardiovascular problems.
Step-by-step explanation:
To solve the mathematical problem of calculating Jonia's Waist to Hip Ratio (WHR), we start by noting that Jonia's waist measurement is 42 inches. According to the information provided, Jonia's hip measurement is 2 inches less than her waist measurement, which means her hips measure 42 inches - 2 inches = 40 inches.
Next, we calculate the WHR by dividing the waist measurement by the hip measurement:
WHR = Waist Measurement / Hip Measurement
WHR = 42 inches / 40 inches
WHR = 1.05
Since a WHR greater than 1 indicates a high risk of cardiovascular problems, Jonia's WHR of 1.05 would classify her as at high risk. It's essential to note that WHR is a significant predictor of possible cardiovascular issues, and abdominal obesity, which can be indicated by a high WHR, is considered riskier than other fat distributions.