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JulijaS [17]
3 years ago
7

Mary French uses gas to heat her home. She has accumulated the following information regarding her monthly gas bill and monthly

heating degree-days. The heating degree-days value for a month is found by first subtracting the average temperature for each day from 65 degrees and then summing these daily amounts together for the month. Month Heating Degree-Days Gas Bill February 1,900 $195 April 600 $78 The equation representing the relationship between the gas bill (Y) and heating degree-days (X) is:
Mathematics
1 answer:
garik1379 [7]3 years ago
7 0

Answer:

Y=$24+0.09X

Step-by-step explanation:

From the question we are told that

February Heat H_1=1900\textdegree

February Gas G_1 =\$195

April Heat H_2=600\textdegree

April Gas G_2=\$78

Generally equation for heating degree-days X is mathematically given by

 X=\frac{\triangle gas\ bills}{\triangle Heating\ days}

 X=\frac{195-78}{1900-600}

 X=\$ 0.09

Generally the equation for gas bill Y is mathematically represented by

 Y=78-(600*0.09)\\Y=\$24

The equation representing the relationship between the gas bill (Y) and heating degree-days (X) is

 Y=$24+0.09X

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