Complete question is;
A thermometer has its stem marked in millimeter instead of degree Celsius. The lower fixed point is 30mm and the upper is 180mm. Calculate the temperature in degree celsius when the thermometer reads 45mm.
Answer:
Temperature = 10 °C
Explanation:
We are given;
Lower fixed point; LFP = 30mm
Upper fixed point for another scale;UFP_a = 45 mm
Upper fixed point for celsius scale;UPF_c = 180 mm
To find the temperature in degree celsius when the thermometer reads 45mm, we will use the formula;
θ = (x/y) • 100.
where;
x = UFP -LFP -another scale
y = UFP - LFP for celsius scale.
θ = temperature
Thus, plugging in the relevant values, we have;
θ = [(45-30)/(180-30)] x 100
θ = 10 °C
