SOLUTION: In Spring, the daily high temperature in Boulder Colorado rise about 1/3 degree per day. On Friday, May 2, the temperature reached 74 degrees. Predict when the temperature will rea

Question 529286: In Spring, the daily high temperature in Boulder Colorado rise about 1/3 degree per day. On Friday, May 2, the temperature reached 74 degrees. Predict when the temperature will reach 90 degrees.
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
y = predicted temperature
x = number of days since May 2, where x = 0 is May 2, x = 1 is May 3, x = 2 is May 4, etc.
74 is the base temperature on May 2
.
y = 1/3*x + 74
.
To predict when the temperature will be 90, substitute y = 90 and solve for 'x'.
.
90 = 1/3*x + 74
16 = 1/3*x
x = 48
.
48 days after May 2 the predicted temperature will be 90. That would be June 19.

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